AUDI A3 2013 — Body electrical, right-hand drive, (L0R) . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2013 - Intermittent wiper switch - Cruise control system switch - Steering column electronics control unit

E22	Intermittent wiper switch
E45	Cruise control system switch
J527	Steering column electronics control unit
*	Only models with cruise control system (CCS)

Wiring Diagram AUDI A3 2013 - Turn signal switch - Horn plate - Steering column electronics control unit

E2	Turn signal switch
F350	Coil connector
H	Horn plate
J527	Steering column electronics control unit

Wiring Diagram AUDI A3 2013 - Ignition/starter switch - Steering column electronics control unit

D	Ignition/starter switch
J527	Steering column electronics control unit
N376	Ignition key withdrawal lock solenoid
T2ao	2-pin connector
T16a	16-pin connector
381	Earth connection 16, in main wiring harness
687	Earth point 1, on centre tunnel
*	Up to April 2013
*2	From May 2013

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Steering column electronics control unit

E313	Selector lever
J519	Onboard supply control unit
J527	Steering column electronics control unit
J587	Selector lever sensors control unit
J623	Engine control unit
T16a	16-pin connector
T17c	17-pin connector
T73a	73-pin connector
*	Only models with no entry and start authorisation
*2	see applicable current flow diagram for automatic gearbox
*3	Only models with cruise control system (CCS)

Wiring Diagram AUDI A3 2013 - Onboard supply control unit

J234	Airbag control unit
J519	Onboard supply control unit
T16	16-pin connector
T73a	73-pin connector
T73c	73-pin connector
T90	90-pin connector
367	Earth connection 2, in main wiring harness
369	Earth connection 4, in main wiring harness
375	Earth connection 10, in main wiring harness
639	Earth point, left A-pillar
*	Diagnostic connection

Wiring Diagram AUDI A3 2013 - Control unit in dash panel insert - Onboard supply control unit

D2	Immobiliser reader coil
J285	Control unit in dash panel insert
J519	Onboard supply control unit
T18	18-pin connector
367	Earth connection 2, in main wiring harness
375	Earth connection 10, in main wiring harness

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Data bus diagnostic interface

J519	Onboard supply control unit
J533	Data bus diagnostic interface
SB18	Fuse 18 on fuse holder B
T17b	17-pin connector
T20a	20-pin connector
T73a	73-pin connector
367	Earth connection 2, in main wiring harness
375	Earth connection 10, in main wiring harness
B466	Connection 2, in main wiring harness
B673	Connection 2 (running gear/dash panel insert CAN bus, high), in main wiring harness
B677	Connection 2 (running gear/dash panel insert CAN bus, low), in main wiring harness
*	Only models with no start/stop system

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Data bus diagnostic interface

J519	Onboard supply control unit
J533	Data bus diagnostic interface
T20a	20-pin connector
367	Earth connection 2, in main wiring harness
375	Earth connection 10, in main wiring harness
B108	Connection 1 (CAN bus extended high), in main wiring harness
B109	Connection 1 (CAN bus extended low), in main wiring harness
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
B415	Connection 1 (infotainment CAN bus, high), in main wiring harness
B421	Connection 1 (infotainment CAN bus, low), in main wiring harness
B528	Connection 1 (LIN bus) in main wiring harness

Wiring Diagram AUDI A3 2013 - Light switch - Rain and light sensor - Onboard supply control unit

E1	Light switch
E102	Headlight range control regulator
G355	Humidity sender
G397	Rain and light sensor
J519	Onboard supply control unit
T3f	3-pin connector
T17b	17-pin connector
T73a	73-pin connector
T73c	73-pin connector
367	Earth connection 2, in main wiring harness
375	Earth connection 10, in main wiring harness
B316	Positive connection 2 (30a) in main wiring harness
B549	Connection 2 (LIN bus) in main wiring harness
D106	Connection 4 in engine compartment wiring harness
*	According to equipment
*2	Only models with no automatic headlight range control

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Front roof module - Rear interior light

J519	Onboard supply control unit
T4a	4-pin connector
T4b	4-pin connector
T6	6-pin connector
T8a	8-pin connector
T73c	73-pin connector
W1	Front interior light
WX3	Front roof module
W11	Rear left reading light
W12	Rear right reading light
W13	Front passenger reading light
W19	Driver side reading light
W43	Rear interior light
Y7	Automatic anti-dazzle interior mirror
367	Earth connection 2, in main wiring harness
372	Earth connection 7, in main wiring harness
375	Earth connection 10, in main wiring harness
751	Earth point 2, on right A-pillar
B467	Connection 3, in main wiring harness

Wiring Diagram AUDI A3 2013 - Glove compartment light switch - Hazard warning lights button - Onboard supply control unit - Glove compartment light

E26	Glove compartment light switch
E229	Hazard warning lights button
J519	Onboard supply control unit
K6	Indicator lamp for hazard warning light
T20	20-pin connector
T73c	73-pin connector
W6	Glove compartment light
366	Earth connection 1, in main wiring harness
368	Earth connection 3, in main wiring harness
684	Earth point on front of left side member
687	Earth point 1, on centre tunnel
B467	Connection 3, in main wiring harness
B731	Connection 1 (58s), in main wiring harness

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Left daytime running light bulb - Left side light bulb - Front left turn signal bulb - Left headlight dipped beam bulb - Left headlight main beam bulb - Left headlight range control motor

J519	Onboard supply control unit
L174	Left daytime running light bulb
M1	Left side light bulb
M5	Front left turn signal bulb
M29	Left headlight dipped beam bulb
M30	Left headlight main beam bulb
T17b	17-pin connector
T17c	17-pin connector
T46b	46-pin connector
T73c	73-pin connector
V48	Left headlight range control motor
201	Earth connection 5, in engine compartment wiring harness
671	Earth point 1, on front of left longitudinal member
D152	Positive connection 1 (56b), in engine compartment wiring harness
D200	Positive connection 3 (15a), in engine compartment wiring harness
*	Only models with headlight range control
*2	Gradually discontinued

Wiring Diagram AUDI A3 2013 - Bonnet contact switch - Treble horn - Onboard supply control unit - Left fog light bulb - Headlight washer system pump

F266	Bonnet contact switch
H2	Treble horn
J413	Horn relay
J519	Onboard supply control unit
L22	Left fog light bulb
SB15	Fuse 15 on fuse holder B
T4i	4-pin connector
T46b	46-pin connector
V11	Headlight washer system pump
85	Earth connection 1, in engine compartment wiring harness
131	Earth connection 2, in engine compartment wiring harness
201	Earth connection 5, in engine compartment wiring harness
419	Earth connection 11, in engine compartment wiring harness
671	Earth point 1, on front of left longitudinal member
C13	Positive connection in dual tone horn wiring harness
D101	Connection 1 in engine compartment wiring harness
*	Only models with fog lights
*2	According to equipment
*3	Gradually discontinued
*4	gradual introduction

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Tank filler flap locking motor - Left washer jet heater element - Right washer jet heater element

J519	Onboard supply control unit
T46b	46-pin connector
T73a	73-pin connector
V155	Tank filler flap locking motor
Z20	Left washer jet heater element
Z21	Right washer jet heater element
85	Earth connection 1, in engine compartment wiring harness
131	Earth connection 2, in engine compartment wiring harness
C72	Positive connection in heated washer jet wiring harness
*	Only models with no hybrid drive system
*2	Only models with heater elements for washer jets

Wiring Diagram AUDI A3 2013 - Brake pedal switch - Clutch position sender - Onboard supply control unit

F	Brake light switch
F63	Brake pedal switch
G476	Clutch position sender
J104	ABS control unit
J271	Main relay
J317	Terminal 30 voltage supply relay
J519	Onboard supply control unit
J623	Engine control unit
SB6	Fuse 6 on fuse holder B
T17c	17-pin connector
T73c	73-pin connector
131	Earth connection 2, in engine compartment wiring harness
B335	Connection 1 (54), in main wiring harness
D52	Positive connection (15a), in engine compartment wiring harness
D73	Positive connection (54), in engine compartment wiring harness
D103	Connection 3 in engine compartment wiring harness
*	Only models with no hybrid drive system
*2	According to equipment
*3	see applicable current flow diagram for engine
*4	Only models with manual gearbox

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Right daytime running light bulb - Right side light bulb - Front right turn signal bulb - Right headlight dipped beam bulb - Right headlight main beam bulb - Right headlight range control motor

J519	Onboard supply control unit
L175	Right daytime running light bulb
M3	Right side light bulb
M7	Front right turn signal bulb
M31	Right headlight dipped beam bulb
M32	Right headlight main beam bulb
T46b	46-pin connector
V49	Right headlight range control motor
132	Earth connection 3, in engine compartment wiring harness
685	Earth point 1 at front of right longitudinal member
*	Only models with headlight range control

Wiring Diagram AUDI A3 2013 - Bonnet contact switch 2 - Front right brake pad wear sender - Bass horn - Wiper motor control unit - Onboard supply control unit - Right fog light bulb - Windscreen wiper motor

F329	Bonnet contact switch 2
G35	Front right brake pad wear sender
H7	Bass horn
J400	Wiper motor control unit
J519	Onboard supply control unit
L23	Right fog light bulb
SB19	Fuse 19 on fuse holder B
T46b	46-pin connector
V	Windscreen wiper motor
132	Earth connection 3, in engine compartment wiring harness
167	Earth connection 4, in engine compartment wiring harness
D53	Connection (right brake wear indicator), in engine compartment wiring harness
D54	Connection (right brake wear indicator), in engine compartment wiring harness
*	Only models with fog lights
*2	Wiring colour depends on equipment

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Rear left turn signal bulb - Rear right turn signal bulb - Left brake and tail light bulb - Right brake and tail light bulb

J519	Onboard supply control unit
M6	Rear left turn signal bulb
M8	Rear right turn signal bulb
M21	Left brake and tail light bulb
M22	Right brake and tail light bulb
T73a	73-pin connector
T73c	73-pin connector
57	Earth point, rear left pillar
75	Earth point, rear right pillar
373	Earth connection 8, in main wiring harness
374	Earth connection 9, in main wiring harness
*	Only models with 3-doors

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Rear left turn signal bulb - Rear right turn signal bulb - Left brake and tail light bulb - Right brake and tail light bulb

J519	Onboard supply control unit
M6	Rear left turn signal bulb
M8	Rear right turn signal bulb
M21	Left brake and tail light bulb
M22	Right brake and tail light bulb
T17f	17-pin connector
T73a	73-pin connector
T73c	73-pin connector
X4	Left number plate light
X5	Right number plate light
57	Earth point, rear left pillar
75	Earth point, rear right pillar
98	Earth connection, in rear lid wiring harness
374	Earth connection 9, in main wiring harness
378	Earth connection 13, in main wiring harness
W11	Connection (58), in rear lid wiring harness
*	Only models with 5-doors

Wiring Diagram AUDI A3 2013 - Rear lid handle release button - Onboard supply control unit - Right tail light bulb - Left tail light bulb - Left reversing light bulb - Right reversing light bulb - Left tail light and rear fog light bulb - Right tail light and rear fog light bulb

E234	Rear lid handle release button
J519	Onboard supply control unit
M2	Right tail light bulb
M4	Left tail light bulb
M16	Left reversing light bulb
M17	Right reversing light bulb
M41	Left tail light and rear fog light bulb
M42	Right tail light and rear fog light bulb
T17f	17-pin connector
T73a	73-pin connector
T73c	73-pin connector
98	Earth connection, in rear lid wiring harness
B182	Connection (RL), in interior wiring harness
*	Only models with 5-doors

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Rear left fog light bulb - Rear right fog light bulb - Right tail light bulb - Left tail light bulb - Left reversing light bulb - Right reversing light bulb - High-level brake light bulb

C24	Suppression filter
J519	Onboard supply control unit
L46	Rear left fog light bulb
L47	Rear right fog light bulb
M2	Right tail light bulb
M4	Left tail light bulb
M16	Left reversing light bulb
M17	Right reversing light bulb
M25	High-level brake light bulb
T17f	17-pin connector
T73a	73-pin connector
T73c	73-pin connector
57	Earth point, rear left pillar
98	Earth connection, in rear lid wiring harness
218	Earth connection 1, in rear lid wiring harness
B182	Connection (RL), in interior wiring harness
Q44	Connection 2, in rear lid wiring harness
*	Only models with 3-doors

Wiring Diagram AUDI A3 2013 - Reversing light switch - Onboard supply control unit - Rear window wiper motor - Windscreen and rear window washer pump

F4	Reversing light switch
J519	Onboard supply control unit
T17c	17-pin connector
T17f	17-pin connector
T46b	46-pin connector
T73a	73-pin connector
V12	Rear window wiper motor
V59	Windscreen and rear window washer pump
98	Earth connection, in rear lid wiring harness
B278	Positive connection 2 (15a) in main wiring harness
D136	Positive connection 2 (15a), in engine compartment wiring harness
*	Only models with manual gearbox
*2	Wiring colour depends on equipment

Wiring Diagram AUDI A3 2013 - Rear lid contact switch for anti-theft alarm - Onboard supply control unit - Rear lid central locking motor

F123	Rear lid contact switch for anti-theft alarm
J519	Onboard supply control unit
T2ao	2-pin connector
T2ap	2-pin connector
T17f	17-pin connector
T73a	73-pin connector
V53	Rear lid central locking motor
W18	Luggage compartment light on left
W35	Right luggage compartment light
98	Earth connection, in rear lid wiring harness
B465	Connection 1, in main wiring harness
*	According to equipment
*2	If fitted

Wiring Diagram AUDI A3 2013 - Brake fluid level warning contact - Coolant shortage indicator switch - Ambient temperature sensor - Windscreen washer fluid level sender - Onboard supply control unit

F34	Brake fluid level warning contact
F66	Coolant shortage indicator switch
G17	Ambient temperature sensor
G33	Windscreen washer fluid level sender
J519	Onboard supply control unit
T4i	4-pin connector
T46b	46-pin connector
327	Earth connection (sender earth), in engine compartment wiring harness
*	Only models with no hybrid drive system
*2	According to equipment

Wiring Diagram AUDI A3 2013 - Driver side central locking lock unit - Driver door control unit - Onboard supply control unit - Driver side turn signal repeater bulb

F2	Driver door contact switch
F220	Driver side central locking lock unit
J386	Driver door control unit
J519	Onboard supply control unit
L131	Driver side turn signal repeater bulb
T16e	16-pin connector
T20c	20-pin connector
T27a	27-pin connector
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
*	see applicable current flow diagram for convenience system

Wiring Diagram AUDI A3 2013 - Front passenger side central locking lock unit - Front passenger door control unit - Onboard supply control unit - Front passenger side turn signal repeater bulb

F3	Front passenger door contact switch
F221	Front passenger side central locking lock unit
J387	Front passenger door control unit
J519	Onboard supply control unit
L132	Front passenger side turn signal repeater bulb
T16f	16-pin connector
T20d	20-pin connector
T27	27-pin connector
T73a	73-pin connector
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
*	see applicable current flow diagram for convenience system

Wiring Diagram AUDI A3 2013 - Heated rear window relay - Onboard supply control unit - Fuse holder C - Heated rear window

C18	Window aerial suppression filter
J9	Heated rear window relay
J519	Onboard supply control unit
SA1	Fuse 1 in fuse holder A
SC	Fuse holder C
SC5	Fuse 5 on fuse holder C
SC7	Fuse 7 on fuse holder C
SC8	Fuse 8 on fuse holder C
SC9	Fuse 9 on fuse holder C
SC31	Fuse 31 on fuse holder C
SC41	Fuse 41 on fuse holder C
SC42	Fuse 42 on fuse holder C
SC53	Fuse 53 on fuse holder C
T73a	73-pin connector
T73c	73-pin connector
Z1	Heated rear window
B315	Positive connection 1 (30a) in main wiring harness
*	Up to April 2013
*2	From May 2013

Wiring Diagram AUDI A3 2013 - Terminal 15 voltage supply relay - Onboard supply control unit - Fuse holder C

J329	Terminal 15 voltage supply relay
J519	Onboard supply control unit
SC	Fuse holder C
SC34	Fuse 34 on fuse holder C
SC35	Fuse 35 on fuse holder C
SC47	Fuse 47 on fuse holder C
SC49	Fuse 49 on fuse holder C
T17c	17-pin connector
T73a	73-pin connector
B279	Positive connection 3 (15a) in main wiring harness
*	Wiring colour depends on equipment

Wiring Diagram AUDI A3 2013 - Onboard supply control unit - Fuse holder C

J519	Onboard supply control unit
SA4	Fuse 4 in fuse holder A
SC	Fuse holder C
SC17	Fuse 17 on fuse holder C
SC23	Fuse 23 on fuse holder C
SC29	Fuse 29 on fuse holder C
SC43	Fuse 43 on fuse holder C
T73a	73-pin connector
T73c	73-pin connector

AUDI A3 2013 Overview of control units in interior of vehicle (3-door models)

Overview of control units in interior of vehicle (3-door models)

t	Overview of control units (4-door) → chapter

t	Overview of control units (5-door) → chapter

t	Overview of control units (Cabriolet) → chapter

   

1 -	Control unit for information electronics 1 -J794-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI with radio): → chapter

q	Fitting location and connectors (MMI high): → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Front passenger door control unit -J387-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Display unit for front information display and operating unit control unit -J685-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI): → item

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

4 -	Air conditioning system control unit -J301-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

4 -	Climatronic control unit -J255-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Interior mirror -EX5-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Front camera for driver assist systems -R242-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

6 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (MMI): → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

7 -	Sliding sunroof adjustment control unit -J245-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

8 -	Fuel pump control unit -J538-

q	Fitting location and connectors for petrol engines: → chapter

q	Fitting location and connectors for diesel engines: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

9 -	Digital sound package control unit -J525-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

10 -	Electronically controlled damping control unit -J250-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

11 -	Driver door control unit -J386-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

12 -	Steering column electronics control unit -J527-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

12 -	Electronic steering column lock control unit -J764-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

13 -	Control unit in dash panel insert -J285-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

14 -	CAN bus control unit -J916-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

15 -	Onboard supply control unit -J519-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

16 -	Entry and start authorisation control unit -J518-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

17 -	Park assist steering control unit -J791-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

17 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

18 -	Data bus diagnostic interface -J533-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

19 -	Airbag control unit -J234-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

20 -	Headlight range control unit -J431-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

20 -	Control unit for cornering light and headlight range control -J745-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of control units in interior of vehicle (4-door models) Overview of control units in interior of vehicle (4-door models)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Entry and start authorisation control unit -J518-

q	Only for models with US equipment

q	Fitting location and connectors: → chapter

2 -	Control unit in dash panel insert -J285-

q	Fitting location and connectors: → chapter

3 -	Control unit for information electronics 1 -J794-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI with radio): → chapter

q	Fitting location and connectors (MMI high): → chapter

4 -	Front passenger door control unit -J387-

q	Fitting location and connectors: → chapter

5 -	Display unit for front information display and operating unit control unit -J685-

q	Fitting location and connectors: → chapter

5 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI): → item

6 -	Air conditioning system control unit -J301-

q	Fitting location and connectors: → chapter

6 -	Climatronic control unit -J255-

q	Fitting location and connectors: → chapter

7 -	Interior mirror -EX5-

q	Fitting location and connectors: → chapter

7 -	Front camera for driver assist systems -R242-

q	Fitting location and connectors: → chapter

8 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (MMI): → chapter

9 -	Electronically controlled damping control unit -J250-

q	Fitting location and connectors: → chapter

10 -	Rear passenger side door control unit -J927-

q	Fitting location and connectors: → chapter

q	Overview (5-door): → item

11 -	Sliding sunroof adjustment control unit -J245-

q	Fitting location and connectors: → chapter

12 -	Rear driver side door control unit -J926-

q	Fitting location and connectors: → chapter

q	Overview (5-door): → item

13 -	Fuel pump control unit -J538-

q	Fitting location and connectors for petrol engines: → chapter

q	Fitting location and connectors for diesel engines: → chapter

14 -	Digital sound package control unit -J525-

q	Fitting location and connectors: → chapter

15 -	Driver door control unit -J386-

q	Fitting location and connectors: → chapter

16 -	Steering column electronics control unit -J527-

q	Fitting location and connectors: → chapter

16 -	Electronic steering column lock control unit -J764-

q	Fitting location and connectors: → chapter

17 -	CAN bus control unit -J916-

q	Fitting location and connectors: → chapter

18 -	Onboard supply control unit -J519-

q	Fitting location and connectors: → chapter

19 -	Entry and start authorisation control unit -J518-

q	Only for models without US equipment

q	For models with US equipment: → Pos.

q	Fitting location and connectors: → chapter

20 -	Park assist steering control unit -J791-

q	Fitting location and connectors: → chapter

20 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

21 -	Data bus diagnostic interface -J533-

q	Fitting location and connectors: → chapter

22 -	Airbag control unit -J234-

q	Fitting location and connectors: → chapter

23 -	Control unit for cornering light and headlight range control -J745-

q	Fitting location and connectors: → chapter

23 -	Headlight range control unit -J431-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of control units in interior of vehicle (5-door models) Overview of control units in interior of vehicle (5-door models)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Entry and start authorisation control unit -J518-

q	Only for models with US equipment

q	Fitting location and connectors: → chapter

2 -	Control unit in dash panel insert -J285-

q	Fitting location and connectors: → chapter

3 -	Control unit for information electronics 1 -J794-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI with radio): → chapter

q	Fitting location and connectors (MMI high): → chapter

4 -	Front passenger door control unit -J387-

q	Fitting location and connectors: → chapter

5 -	Display unit for front information display and operating unit control unit -J685-

q	Fitting location and connectors: → chapter

5 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI): → item

6 -	Air conditioning system control unit -J301-

q	Fitting location and connectors: → chapter

6 -	Climatronic control unit -J255-

q	Fitting location and connectors: → chapter

7 -	Interior mirror -EX5-

q	Fitting location and connectors: → chapter

7 -	Front camera for driver assist systems -R242-

q	Fitting location and connectors: → chapter

8 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (MMI): → chapter

9 -	Electronically controlled damping control unit -J250-

q	Fitting location and connectors: → chapter

9 -	Engine sound generator control unit -J943-

q	Fitting location and connectors: → chapter

10 -	Rear passenger side door control unit -J927-

q	Fitting location and connectors: → chapter

11 -	Sliding sunroof adjustment control unit -J245-

q	Fitting location and connectors: → chapter

12 -	Rear driver side door control unit -J926-

q	Fitting location and connectors: → chapter

13 -	Fuel pump control unit -J538-

q	Fitting location and connectors for petrol engines: → chapter

q	Fitting location and connectors for diesel engines: → chapter

14 -	Digital sound package control unit -J525-

q	Fitting location and connectors: → chapter

15 -	Driver door control unit -J386-

q	Fitting location and connectors: → chapter

16 -	Steering column electronics control unit -J527-

q	Fitting location and connectors: → chapter

16 -	Electronic steering column lock control unit -J764-

q	Fitting location and connectors: → chapter

17 -	CAN bus control unit -J916-

q	Fitting location and connectors: → chapter

18 -	Onboard supply control unit -J519-

q	Fitting location and connectors: → chapter

19 -	Entry and start authorisation control unit -J518-

q	Only for models without US equipment

q	For models with US equipment: → Pos.

q	Fitting location and connectors: → chapter

20 -	Park assist steering control unit -J791-

q	Fitting location and connectors: → chapter

20 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

21 -	Data bus diagnostic interface -J533-

q	Fitting location and connectors: → chapter

22 -	Airbag control unit -J234-

q	Fitting location and connectors: → chapter

23 -	Control unit for cornering light and headlight range control -J745-

q	Fitting location and connectors: → chapter

23 -	Headlight range control unit -J431-

q	Fitting location and connectors: → chapter

24 -	Emergency call module control unit and communication unit -J949-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of control units in interior of vehicle (Cabriolet) Overview of control units in interior of vehicle (Cabriolet)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter

1 -	Control unit for information electronics 1 -J794-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI with radio): → chapter

q	Fitting location and connectors (MMI high): → chapter

2 -	Display unit for front information display and operating unit control unit -J685-

q	Fitting location and connectors: → chapter

2 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (radio): → chapter

q	Fitting location and connectors (MMI): → item

3 -	Front passenger door control unit -J387-

q	Fitting location and connectors: → chapter

4 -	Air conditioning system control unit -J301-

q	Fitting location and connectors: → chapter

4 -	Climatronic control unit -J255-

q	Fitting location and connectors: → chapter

5 -	Interior mirror -EX5-

q	Fitting location and connectors: → chapter

5 -	Front camera for driver assist systems -R242-

q	Fitting location and connectors: → chapter

6 -	Multimedia system operating unit -E380-

q	Fitting location and connectors (MMI): → chapter

7 -	Fuel pump control unit -J538-

q	Fitting location and connectors for petrol engines: → chapter

q	Fitting location and connectors for diesel engines: → chapter

8 -	Driver door control unit -J386-

q	Fitting location and connectors: → chapter

9 -	Digital sound package control unit -J525-

q	Fitting location and connectors: → chapter

10 -	Electronically controlled damping control unit -J250-

q	Fitting location and connectors: → chapter

11 -	Steering column electronics control unit -J527-

q	Fitting location and connectors: → chapter

11 -	Electronic steering column lock control unit -J764-

q	Fitting location and connectors: → chapter

12 -	Control unit in dash panel insert -J285-

q	Fitting location and connectors: → chapter

13 -	CAN bus control unit -J916-

q	Fitting location and connectors: → chapter

14 -	Onboard supply control unit -J519-

q	Fitting location and connectors: → chapter

15 -	Entry and start authorisation control unit -J518-

q	Fitting location and connectors: → chapter

16 -	Park assist steering control unit -J791-

q	Fitting location and connectors: → chapter

16 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

17 -	Data bus diagnostic interface -J533-

q	Fitting location and connectors: → chapter

18 -	Airbag control unit -J234-

q	Fitting location and connectors: → chapter

19 -	Headlight range control unit -J431-

q	Fitting location and connectors: → chapter

19 -	Control unit for cornering light and headlight range control -J745-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of control units in rear part of vehicle (3-door) Overview of control units in rear part of vehicle (3-door)   Note: t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Special purpose vehicle control unit -J608-

q	for models with driving aids only

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Lane change assist control unit -J769-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Remote control receiver for auxiliary heater -R64-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

4 -	Lane change assist control unit 2 -J770-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Trailer detector control unit -J345-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

6 -	All-wheel drive control unit -J492-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

7 -	Reversing camera system control unit -J772-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

8 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of control units in rear part of vehicle (4-door) Overview of control units in rear part of vehicle (4-door)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Special purpose vehicle control unit -J608-

q	Fitting location and connectors: → chapter

1 -	TV tuner -R78-

q	Fitting location and connectors: → chapter

q	Overview (5-door): → item

2 -	Lane change assist control unit -J769-

q	Fitting location and connectors: → chapter

3 -	Lane change assist control unit 2 -J770-

q	Fitting location and connectors: → chapter

4 -	Trailer detector control unit -J345-

q	Fitting location and connectors: → chapter

5 -	Reversing camera system control unit -J772-

q	Fitting location and connectors: → chapter

5 -	Remote control receiver for auxiliary heater -R64-

q	Fitting location and connectors: → chapter

6 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

7 -	All-wheel drive control unit -J492-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of control units in rear part of vehicle (5-door) Overview of control units in rear part of vehicle (5-door)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Special purpose vehicle control unit -J608-

q	for models with driving aids only

q	Fitting location and connectors: → chapter

2 -	Lane change assist control unit -J769-

q	Fitting location and connectors: → chapter

3 -	Remote control receiver for auxiliary heater -R64-

q	Fitting location and connectors: → chapter

4 -	Lane change assist control unit 2 -J770-

q	Fitting location and connectors: → chapter

5 -	Trailer detector control unit -J345-

q	Fitting location and connectors: → chapter

6 -	All-wheel drive control unit -J492-

q	Fitting location and connectors: → chapter

7 -	Reversing camera system control unit -J772-

q	Fitting location and connectors: → chapter

8 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

9 -	TV tuner -R78-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of additional control units in rear part of vehicle (5-door, with hybrid drive) Overview of additional control units in rear part of vehicle (5-door, with hybrid drive)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Hybrid battery unit -AX1-

q	Fitting location and connectors: → chapter

2 -	Battery monitoring control unit -J367-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Overview of control units in rear part of vehicle (Cabriolet) Overview of control units in rear part of vehicle (Cabriolet)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter

1 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

2 -	Lane change assist control unit -J769-

q	Fitting location and connectors: → chapter

3 -	Lane change assist control unit 2 -J770-

q	Fitting location and connectors: → chapter

4 -	Trailer detector control unit -J345-

q	Fitting location and connectors: → chapter

4 -	Convertible roof actuation control unit -J256-

q	Fitting location and connectors: → chapter

4 -	Reversing camera system control unit -J772-

q	Fitting location and connectors: → chapter

4 -	Special purpose vehicle control unit -J608-

q	Fitting location and connectors: → chapter

5 -	All-wheel drive control unit -J492-

q	Fitting location and connectors: → chapter

AUDI A3 2013 Electronically controlled damping control unit J250 Electronically controlled damping control unit -J250- Fitting location: Under front passenger seat.

A -	Electronically controlled damping control unit -J250-

A1 -	47-pin connector -T47a-, black

AUDI A3 2013 Digital sound package control unit J525 Digital sound package control unit -J525- Fitting location: under driver seat.

A -	Digital sound package control unit -J525-

A1 -	38-pin connector, black

A2 -	2-pin connector, black

AUDI A3 2013 Reversing camera system control unit J772 (3 and 5-door) Reversing camera system control unit -J772- (3 and 5-door) Fitting location: behind right side trim in luggage compartment.

A -	Reversing camera system control unit -J772-

A1 -	20-pin connector -T20i-, black

A2 -	2-pin connector -T2df-, green

A3 -	2-pin connector -T2ep-, grey

A4 -

Vacant

AUDI A3 2013 Fuel pump control unit J538 (petrol engines) Fuel pump control unit -J538- (petrol engines) Fitting location: under rear seat bench

A -	Fuel pump control unit -J538-

A1 -	5-pin connector -T5c-, black

AUDI A3 2013 Fuel pump control unit J538 (diesel engines) Fuel pump control unit -J538- (diesel engines) Fitting location: under rear seat bench

A -	Fuel pump control unit -J538-

A1 -	6-pin, connector -T6e-, black

AUDI A3 2013 Aerial amplifier for mobile telephone R86 (3 and 5-door) Aerial amplifier for mobile telephone -R86- (3 and 5-door) Fitting location: behind right side trim in luggage compartment.

A -	Aerial amplifier for mobile telephone -R86-

A1 -	4-pin connector -T4y-, black

A2 -	2-pin connector -T2am-, violet

A3 -	2-pin connector -T2al-, black

AUDI A3 2013 Remote control receiver for auxiliary heater R64 (3 and 5-door) Remote control receiver for auxiliary heater -R64- (3 and 5-door) Fitting location: behind right side trim in luggage compartment.

A -	Remote control receiver for auxiliary heater -R64-

A1 -	6-pin, connector -T6s-, blue

A2 -	2-pin connector

AUDI A3 2013 Control unit in dash panel insert J285 Control unit in dash panel insert -J285- Fitting location: in the dash panel.

A -	Control unit in dash panel insert -J285-

A1 -	18-pin connector -T18-, black

AUDI A3 2013 Trailer detector control unit J345 (3 and 5-door) Trailer detector control unit -J345- (3 and 5-door) Fitting location: behind left side trim in luggage compartment.

A -	Trailer detector control unit -J345-

A1 -	16-pin connector -T16l-, black

A2 -	12-pin connector -T12b-, red

AUDI A3 2013 Electronic steering column lock control unit J764 Electronic steering column lock control unit -J764- Fitting location: On steering column.

A -	Electronic steering column lock control unit -J764-

A1 -	16-pin connector -T16g-, black

AUDI A3 2013 Lane change assist control unit 2 J770 Lane change assist control unit 2 -J770- Fitting location: in rear bumper on left.

A -	Lane change assist control unit 2 -J770-

A1 -	12-pin connector -T12h-, black

AUDI A3 2013 Lane change assist control unit J769 Lane change assist control unit -J769- Fitting location: in rear bumper on right.

A -	Lane change assist control unit -J769-

A1 -	12-pin connector -T12g-, black

AUDI A3 2013 Entry and start authorisation control unit J518 Entry and start authorisation control unit -J518- Fitting location: below the dash panel.

A -	Entry and start authorisation control unit -J518-

A1 -	32-pin connector -T32a-, blue

AUDI A3 2013 Air conditioning system control unit J301 Air conditioning system control unit -J301- Fitting location: in centre of dash panel

A -	Air conditioning system control unit -J301-

A1 -	16-pin connector -T16o-

A2 -	20-pin connector -T20f-, black

AUDI A3 2013 Climatronic control unit J255 Climatronic control unit -J255- Fitting location: in centre of dash panel

A -	Climatronic control unit -J255-

A1 -	16-pin connector -T16d-

A2 -	16-pin connector -T16c-

A3 -	20-pin connector -T20b-, black

AUDI A3 2013 Onboard supply control unit J519 Onboard supply control unit -J519- Fitting location: Behind the dash panel, left.

A -	Onboard supply control unit -J519-

A1 -	73-pin connector -T73a-, black

A2 -	46-pin connector -T46b-, black

A3 -	73-pin connector -T73c-, black

AUDI A3 2013 Data bus diagnostic interface J533 Data bus diagnostic interface -J533- Fitting location: below the dash panel.

A -	Data bus diagnostic interface -J533-

A1 -	20-pin connector -T20a-, red

AUDI A3 2013 Airbag control unit J234 Airbag control unit -J234- Fitting location: behind centre console.

A -	Airbag control unit -J234-

A1 -	90-pin connector -T90-, yellow

AUDI A3 2013 Parking aid control unit J446 / park assist steering control unit J791 Parking aid control unit -J446-/ park assist steering control unit -J791- Fitting location: Behind the dash panel, left.

A -	Parking aid control unit -J446-/ park assist steering control unit -J791-

A1 -	26-pin connector -T26c-, black

A2 -	18-pin connector -T18a-, black

AUDI A3 2013 Driver door control unit J386 Driver door control unit -J386- Fitting location: In driver door.

A -	Driver door control unit -J386-

A1 -	6-pin connector -T6f-

A2 -	20-pin connector -T20c-

A3 -	16-pin connector -T16e-

A4 -	32-pin connector -T32b-, blue

AUDI A3 2013 Front passenger door control unit J387 Front passenger door control unit -J387- Fitting location: In front passenger door.

A -	Front passenger door control unit -J387-

A1 -	6-pin connector -T6g-

A2 -	20-pin connector -T20d-

A3 -	16-pin connector -T16f-

A4 -	32-pin connector -T32c-, blue

AUDI A3 2013 Steering column electronics control unit J527 Steering column electronics control unit -J527- Fitting location: On steering column.

A -	Steering column electronics control unit -J527-

A1 -	4-pin connector -T4-, yellow

A2 -	16-pin connector -T16a-, black

AUDI A3 2013 Headlight range control unit J431 / control unit for cornering light and headlight range control J745 Headlight range control unit -J431-/ control unit for cornering light and headlight range control -J745- Fitting location: Behind the dash panel, left.

A -	Headlight range control unit -J431-

A1 -	26-pin connector -T26a-, red

B -	Control unit for cornering light and headlight range control -J745-

B1 -	26-pin connector -T26b-, black

AUDI A3 2013 CAN bus control unit J916 CAN bus control unit -J916- Fitting location: Behind the dash panel, left.

A -	CAN bus control unit -J916-

A1 -	9-pin connector -T9-

AUDI A3 2013 Special purpose vehicle control unit J608 (3 and 5-door) Special purpose vehicle control unit -J608- (3 and 5-door) Fitting location: behind right side trim in luggage compartment.

A -	Special purpose vehicle control unit -J608-

A1 -	16-pin connector -T16h-, brown

A2 -	20-pin connector -T20l-, red

A3 -

Vacant

A4 -	16-pin connector -T16b-, black

A5 -	12-pin connector -T12d-, black

AUDI A3 2013 Rear driver side door control unit J926 Rear driver side door control unit -J926- Fitting location: in rear left door.

A -	Rear driver side door control unit -J926-

A1 -	6-pin connector -T6al-

A2 -	20-pin connector -T20j-

A3 -	16-pin connector -T16i-

AUDI A3 2013 Rear passenger side door control unit J927 Rear passenger side door control unit -J927- Fitting location: in rear right door.

A -	Rear passenger side door control unit -J927-

A1 -	6-pin connector -T6am-

A2 -	20-pin connector -T20k-

A3 -	16-pin connector -T16j-

AUDI A3 2013 Aerial amplifier for mobile telephone R86 (4-door) Aerial amplifier for mobile telephone -R86- (4-door) Fitting location: behind right side trim in luggage compartment.

A -	Aerial amplifier for mobile telephone -R86-

A1 -	2-pin connector -T2am-, violet

A2 -	4-pin connector -T4y-, black

A3 -	2-pin connector -T2al-, black

AUDI A3 2013 Reversing camera system control unit J772 (4-door) Reversing camera system control unit -J772- (4-door) Fitting location: behind right side trim in luggage compartment.

A -	Reversing camera system control unit -J772-

A1 -	20-pin connector -T20i-, black

A2 -	2-pin connector -T2df-, green

A3 -	2-pin connector -T2ep-, grey

A4 -

Vacant

AUDI A3 2013 Remote control receiver for auxiliary heater R64 (4-door) Remote control receiver for auxiliary heater -R64- (4-door) Fitting location: behind right side trim in luggage compartment.

A -	Remote control receiver for auxiliary heater -R64-

A1 -	6-pin, connector -T6s-, blue

A2 -	2-pin connector

AUDI A3 2013 Trailer detector control unit J345 (4-door) Trailer detector control unit -J345- (4-door) Fitting location: behind left side trim in luggage compartment.

A -	Trailer detector control unit -J345-

A1 -	16-pin connector -T16l-, black

A2 -	12-pin connector -T12b-, red

AUDI A3 2013 Special purpose vehicle control unit J608 (4-door) Special purpose vehicle control unit -J608- (4-door) Fitting location: behind right side trim in luggage compartment.

A -	Special purpose vehicle control unit -J608-

A1 -	16-pin connector -T16h-, brown

A2 -	20-pin connector -T20l-, black

A3 -

Vacant

A4 -	16-pin connector -T16b-, black

A5 -	12-pin connector -T12d-, black

AUDI A3 2013 Special purpose vehicle control unit J608 (Cabriolet) Special purpose vehicle control unit -J608- (Cabriolet) Fitting location: behind left side trim in luggage compartment.

1 -	Special purpose vehicle control unit -J608-

A -	12-pin connector -T12d-, black

B -	16-pin connector -T16b-, black

D -	20-pin connector -T20l-, red

E -	16-pin connector -T16h-, brown

AUDI A3 2013 Aerial amplifier for mobile telephone R86 (Cabriolet) Aerial amplifier for mobile telephone -R86- (Cabriolet) Fitting location: behind right side trim in luggage compartment.

A -	Aerial amplifier for mobile telephone -R86-

A1 -	4-pin connector -T4y-, black

A2 -	2-pin connector -T2am-, violet

A3 -	2-pin connector -T2al-, black

AUDI A3 2013 Trailer detector control unit J345 (Cabriolet) Trailer detector control unit -J345- (Cabriolet) Fitting location: behind left side trim in luggage compartment.

A -	Trailer detector control unit -J345-

A1 -	16-pin connector -T16l-, black

A2 -	12-pin connector -T12b-, red

AUDI A3 2013 Driver door control unit J386 (Cabriolet) Driver door control unit -J386- (Cabriolet) Fitting location: In driver door.

A -	Driver door control unit -J386-

A1 -	6-pin connector -T6f-

A2 -	20-pin connector -T20c-

A3 -	16-pin connector -T16e-

A4 -	32-pin connector -T32b-, blue

AUDI A3 2013 Front passenger door control unit J387 (Cabriolet) Front passenger door control unit -J387- (Cabriolet) Fitting location: In front passenger door.

A -	Front passenger door control unit -J387-

A1 -	6-pin connector -T6g-

A2 -	20-pin connector -T20d-

A3 -	16-pin connector -T16f-

A4 -	32-pin connector -T32c-, blue

AUDI A3 2013 Convertible roof actuation control unit J256 Convertible roof actuation control unit -J256- Fitting location: behind left side trim in luggage compartment.

A -	Convertible roof actuation control unit -J256-

A1 -	16-pin connector -T16q-, brown

A2 -	20-pin connector -T20m-, black

A3 -	10-pin connector -T10aa-, black

AUDI A3 2013 Reversing camera system control unit J772 (Cabriolet) Reversing camera system control unit -J772- (Cabriolet) Fitting location: behind left side trim in luggage compartment.

A -	Reversing camera system control unit -J772-

A1 -	20-pin connector -T20i-, black

A2 -	2-pin connector -T2df-, green

A3 -	2-pin connector -T2ep-

A4 -

Vacant

AUDI A3 2013 Interior mirror EX5 Interior mirror -EX5- Fitting location: at front of roof side member.

A -	Interior mirror -EX5-

A1 -	8-pin connector -T8a-, black

A2 -	3-pin connector -T3f-, black

AUDI A3 2013 All-wheel drive control unit J492 All-wheel drive control unit -J492- Fitting location: on rear axle differential.

A -	All-wheel drive control unit -J492-

A1 -	2-pin connector -T2ax-

A2 -	8-pin connector -T8y-, black

AUDI A3 2013 Display unit for front information display and operating unit control unit J685 Display unit for front information display and operating unit control unit -J685- Fitting location: Dash panel - centre.

A -	Display unit for front information display and operating unit control unit -J685-

A1 -	8-pin connector -T8ai-, black

A2 -	4-pin connector -T4ao-, white

q	Only for MMI with radio

A2 -	4-pin connector -T4ao-, black

q	For MMI high only

AUDI A3 2013 Multimedia system operating unit E380 (MMI) Multimedia system operating unit -E380- (MMI) Fitting location: on centre console.

A -	Multimedia system operating unit -E380-

A1 -	20-pin connector -T20h-, red

AUDI A3 2013 Front camera for driver assist systems R242 Front camera for driver assist systems -R242- Fitting location: near interior mirror.

A -	Front camera for driver assist systems -R242-

A1 -	12-pin connector -T12ac-, black

AUDI A3 2013 Control unit for information electronics 1 J794 (MMI high) Control unit for information electronics 1 -J794- (MMI high) Fitting location: In glove compartment.

A -	Control unit for information electronics 1 -J794-

A1 -	Connector block, consisting of:

t	8-pin connector -T8ag- (plug A), brown

t	12-pin connector -T12x- (plug B), blue

t	12-pin connector -T12y- (plug C), green

t	8-pin connector -T8j- (plug D), black

t	12-pin connector -T12v- (plug E), grey

A2 -	2-pin connector -T2t-, black

A3 -	4-pin connector -T4al-, grey

A4 -	4-pin connector -T4w-, yellow

A5 -	4-pin connector -T4ar-, yellow

A6 -	2-pin connector -T2ew-

A7 -	4-pin connector -T4v-

A8 -	2-pin connector -T2ac-, blue

A9 -	Connector for models with LTE aerial 1 -R297- and LTE aerial 2 -R306-

t	4-pin connector -T4as-, violet

A9 -	Connector for models with telephone aerial -R65-

t	2-pin connector -T2af-, violet

A10 -

2-pin connector -T2ad-, black

q	Only for models without US equipment

A10 -

2-pin connector -T2ad-, brown

q	Only for models with US equipment

AUDI A3 2013 TV tuner R78 (5-door) TV tuner -R78- (5-door) Fitting location: behind right side trim in luggage compartment.

A -	TV tuner -R78-

A1 -	2-pin connector -T2ey-, brown

A2 -	4-pin connector -T4ab-, green

A3 -	2-pin connector -T2ev-, black

A4 -	12-pin connector -T12aa-, black

AUDI A3 2013 TV tuner R78 (4-door) TV tuner -R78- (4-door) Fitting location: behind right side trim in luggage compartment.

A -	TV tuner -R78-

A1 -	2-pin connector -T2ey-, brown

A2 -	4-pin connector -T4ab-, green

A3 -	2-pin connector -T2ev-, black

A4 -	12-pin connector -T12aa-, black

AUDI A3 2013 Sliding sunroof adjustment control unit J245 Sliding sunroof adjustment control unit -J245- Fitting location: On sliding sunroof motor.

A -	Sliding sunroof adjustment control unit -J245-

A1 -	10-pin connector -T10o-

AUDI A3 2013 Control unit for information electronics 1 J794 (Radio) Control unit for information electronics 1 -J794- (Radio) Fitting location: In glove compartment.

A -	Control unit for information electronics 1 -J794-

A1 -	Connector block, consisting of:

t	8-pin connector -T8ag- (plug A), brown

t	12-pin connector -T12x- (plug B), blue

t	12-pin connector -T12y- (plug C), green

t	8-pin connector -T8j- (plug D), black

t	12-pin connector -T12v- (plug E), grey

A2 -	4-pin connector -T4al- (if fitted)

A3 -	4-pin connector -T4v-

AUDI A3 2013 Multimedia system operating unit E380 (Radio) Multimedia system operating unit -E380- (Radio) Fitting location: Dash panel - centre.

A -	Multimedia system operating unit -E380-

A1 -	8-pin connector -T8k-, black

AUDI A3 2013 Control unit for information electronics 1 J794 (MMI with radio) Control unit for information electronics 1 -J794- (MMI with radio) Fitting location: In glove compartment.

A -	Control unit for information electronics 1 -J794-

A1 -	Connector block, consisting of:

t	8-pin connector -T8ag- (plug A), brown

t	12-pin connector -T12x- (plug B), blue

t	12-pin connector -T12y- (plug C), green

t	8-pin connector -T8j- (plug D), black

t	12-pin connector -T12v- (plug E), grey

A2 -	2-pin connector -T2t-, black

A3 -	2-pin connector -T2ac-, blue

A4 -	4-pin connector -T4w-, yellow

A5 -	4-pin connector -T4al-, violet

A6 -	2-pin connector -T2ad-

A7 -	4-pin connector -T4v-

AUDI A3 2013 Hybrid battery unit AX1 Hybrid battery unit -AX1- Fitting location: on underbody, near rear axle

1 -	Hybrid battery unit -AX1-

2 -	High-voltage wiring harness for high-voltage battery -PX1-

A -	14-pin connector -T14k-, black

AUDI A3 2013 Battery monitoring control unit J367 Battery monitoring control unit -J367- Fitting location: in luggage compartment, on earth cable battery terminal clamp.

1 -	Battery monitoring control unit -J367-

A -	2-pin connector -T2fk-, black

AUDI A3 2013 Emergency call module control unit and communication unit J949 Emergency call module control unit and communication unit -J949- Fitting location: Behind the control unit in dash panel insert -J285-.

1 -	Emergency call module control unit and communication unit -J949-

A -	4-pin connector -T4bn-, violet

B -	26-pin connector -T26e-, black

AUDI A3 2013 Engine sound generator control unit J943 Engine sound generator control unit -J943- Fitting location: Under front passenger seat.

1 -	Engine sound generator control unit -J943-

A -	12-pin connector -T12l-, black

AUDI A3 2013 Entry and start authorisation control unit J518 Entry and start authorisation control unit -J518- Fitting location: behind glove compartment.

1 -	Entry and start authorisation control unit -J518-

A -	32-pin connector -T32a-, blue

AUDI A3 2013 Overview of earth points (3-door)

Overview of earth points (3-door)

t	Overview of earth points (4-door) → chapter

t	Overview of earth points (5-door) → chapter

t	Overview of earth points (Cabriolet) → chapter

   

12	Earth point on left in engine compartment

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

57	Earth point, left rear pillar

q	Fitting location: → anchor

q	Overview (5-door): → item

62	Earth point, right C-pillar

q	Fitting location: → anchor

q	Overview (5-door): → item

75	Earth point, rear right pillar

q	Fitting location: → anchor

q	Overview (5-door): → item

612	Earth point at centre on rear lid

q	Fitting location: → anchor

q	Overview (5-door): → item

638	Earth point on right A-pillar

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

639	Earth point on left A-pillar

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

656	Earth point, on right headlight

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

671	Earth point 1 on front left longitudinal member

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

672	Earth point 2 on front left longitudinal member

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

684	Earth point on front of left side member

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

685	Earth point 1 on front right longitudinal member

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

687	Earth point 1 on centre tunnel

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

751	Earth point 2 on right A-pillar

q	Fitting location: → anchor

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of earth points (4-door) Overview of earth points (4-door)   Note t  Overview of earth points (3-door) → chapter t  Overview of earth points (5-door) → chapter t  Overview of earth points (Cabriolet) → chapter

12	Earth point on left in engine compartment

q	Fitting location: → anchor

41	Earth point, under rear shelf

q	Fitting location: → anchor

50	Earth point on left in luggage compartment

q	Fitting location: → anchor

q	Overview (Cabriolet): → item

51	Earth point on right in luggage compartment

q	Fitting location: → anchor

q	Overview (Cabriolet): → item

638	Earth point on right A-pillar

q	Fitting location: → anchor

639	Earth point on left A-pillar

q	Fitting location: → anchor

654	Earth point on right D-pillar

q	Fitting location: → anchor

656	Earth point, on right headlight

q	Fitting location: → anchor

671	Earth point 1 on front left longitudinal member

q	Fitting location: → anchor

672	Earth point 2 on front left longitudinal member

q	Fitting location: → anchor

684	Earth point on front of left side member

q	Fitting location: → anchor

685	Earth point 1 on front right longitudinal member

q	Fitting location: → anchor

687	Earth point 1 on centre tunnel

q	Fitting location: → anchor

751	Earth point 2 on right A-pillar

q	Fitting location: → anchor

AUDI A3 2013 Overview of earth points (5-door) Overview of earth points (5-door)   Note t  Overview of earth points (3-door) → chapter t  Overview of earth points (4-door) → chapter t  Overview of earth points (Cabriolet) → chapter

12	Earth point on left in engine compartment

q	Fitting location: → anchor

57	Earth point, left rear pillar

q	Fitting location: → anchor

62	Earth point, right C-pillar

q	Fitting location: → anchor

75	Earth point, rear right pillar

q	Fitting location: → anchor

612	Earth point at centre on rear lid

q	Fitting location: → anchor

638	Earth point on right A-pillar

q	Fitting location: → anchor

639	Earth point on left A-pillar

q	Fitting location: → anchor

656	Earth point, on right headlight

q	Fitting location: → anchor

671	Earth point 1 on front left longitudinal member

q	Fitting location: → anchor

672	Earth point 2 on front left longitudinal member

q	Fitting location: → anchor

673	Earth point 3 on front left longitudinal member

q	Fitting location: → anchor

q	For models with hybrid drive only

684	Earth point on front of left side member

q	Fitting location: → anchor

685	Earth point 1 on front right longitudinal member

q	Fitting location: → anchor

687	Earth point 1 on centre tunnel

q	Fitting location: → anchor

751	Earth point 2 on right A-pillar

q	Fitting location: → anchor

AUDI A3 2013 Overview of earth points (Cabriolet) Overview of earth points (Cabriolet)   Note t  Overview of earth points (3-door) → chapter t  Overview of earth points (4-door) → chapter t  Overview of earth points (5-door) → chapter

12	Earth point on left in engine compartment

q	Fitting location: → anchor

50	Earth point on left in luggage compartment

q	Fitting location: → anchor

51	Earth point on right in luggage compartment

q	Fitting location: → anchor

638	Earth point on right A-pillar

q	Fitting location: → anchor

639	Earth point on left A-pillar

q	Fitting location: → anchor

656	Earth point, on right headlight

q	Fitting location: → anchor

671	Earth point 1 on front left longitudinal member

q	Fitting location: → anchor

672	Earth point 2 on front left longitudinal member

q	Fitting location: → anchor

675	Earth point 2 on right in luggage compartment

q	Fitting location: → anchor

676	Earth point 2 on left in luggage compartment

q	Fitting location: → anchor

684	Earth point on front of left side member

q	Fitting location: → anchor

685	Earth point 1 on front right longitudinal member

q	Fitting location: → anchor

687	Earth point 1 on centre tunnel

q	Fitting location: → anchor

729	Earth point, on rear left wheel housing

q	Fitting location: → anchor

751	Earth point 2 on right A-pillar

q	Fitting location: → anchor

12	Earth point on left in engine compartment -arrow-

Fitting location:

on left in engine compartment behind battery.

656	Earth point on right headlight -arrow-

Fitting location:

in engine compartment on right headlight.

Torque:

9 Nm

685	Earth point 1 on front right longitudinal member -arrow-

Fitting location:

in engine compartment, at front of right longitudinal member

Torque:

9 Nm

671	Earth point 1 on front left longitudinal member -arrow-

Fitting location:

in engine compartment, at front of left longitudinal member.

Torque:

9 Nm

672	Earth point 2 on front left longitudinal member -arrow-

Fitting location:

in engine compartment, at front of left longitudinal member.

751	Earth point 2 on right A-pillar -arrow A-

Fitting location:

on right A-pillar, behind trim.

Torque:

9 Nm

638	Earth point on right A-pillar -arrow B-

Fitting location:

on right A-pillar, behind trim.

Torque:

9 Nm

75	Earth point on rear right pillar -arrow-

Fitting location:

on rear right pillar, behind trim.

Torque:

9 Nm

62	Earth point, on right C-pillar -arrow-

Fitting location:

on right C-pillar, behind trim.

Torque:

2 Nm

612	Earth point, central on rear lid -arrow-

Fitting location:

central on rear lid, behind trim.

Torque:

2 Nm

57	Earth point on rear left pillar -arrow-

Fitting location:

on rear left pillar, behind trim.

Torque:

9 Nm

684	Earth point at front of left side member -arrow A-

Fitting location:

On front left side member, behind trim.

Torque:

9 Nm

639	Earth point on left A-pillar -arrow B-

Fitting location:

On left A-pillar, behind the trim.

Torque:

9 Nm

687	Earth point 1 on centre tunnel -arrow-

Fitting location:

on centre tunnel.

Torque:

9 Nm

50	Earth point on left in luggage compartment -arrow-

Fitting location:

behind luggage compartment left trim.

51	Earth point on right in luggage compartment -arrow-

Fitting location:

behind luggage compartment right trim.

41	Earth point, under rear shelf -arrow-

Fitting location:

on right in luggage compartment, under rear shelf.

654	Earth point on right D-pillar -arrow-

Fitting location:

on right D-pillar.

50	Earth point on left in luggage compartment -arrow-

Fitting location:

behind luggage compartment left trim.

51	Earth point on right in luggage compartment -arrow-

Fitting location:

behind luggage compartment right trim.

729	Earth point, on rear left wheel housing -arrow-

Fitting location:

behind luggage compartment left trim.

676	Earth point 2 on left in luggage compartment -arrow-

Fitting location:

behind luggage compartment left trim.

675	Earth point 2 on right in luggage compartment -arrow-

Fitting location:

In the convertible top compartment well.

671	Earth point 1 on front left longitudinal member

Fitting location:

in engine compartment, at front of left longitudinal member.

673	Earth point 3 on front left longitudinal member

Fitting location:

in engine compartment, at front of left longitudinal member.

AUDI A3 2013 Overview of control units (3-door)

Overview of control units (3-door)

t	Overview of control units (4-door) → chapter

t	Overview of control units (5-door) → chapter

t	Overview of additional control units and components (5-door, with hybrid drive) → chapter

t	Overview of control units (Cabriolet) → chapter

   

1 -	Output module for right headlight -J668-

q	Fitting location: in right headlight

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

1 -	Control unit for right daytime running light and side light -J861-

q	Fitting location: in right gas discharge headlight

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Auxiliary heater control unit -J364-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

3 -	Mechatronic unit for dual clutch gearbox -J743-

q	Fitting location: on gearbox

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

4 -	ABS control unit -J104-

q	Fitting location and connector: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Battery monitor control unit -J367-

q	Fitting location and connector: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

6 -	Wiper motor control unit -J400-

q	Fitting location: in plenum chamber

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

7 -	Power steering control unit -J500-

q	Fitting location and connectors: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

8 -	Engine control unit -J623-

q	Fitting location and 154-pin connector: → chapter

q	Fitting location and 196-pin connector: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

9 -	Output module for left headlight -J667-

q	Fitting location: in left headlight

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

9 -	Control unit for left daytime running light and side light -J860-

q	Fitting location: in left gas discharge headlight

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

10 -	Radiator fan control unit -J293-

q	Fitting location: on radiator

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

11 -	Adaptive cruise control unit -J428-

q	Fitting location and connector: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of control units (4-door) Overview of control units (4-door)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Output module for right headlight -J668-

q	Fitting location: in right headlight

1 -	Control unit for right daytime running light and side light -J861-

q	Fitting location: in right gas discharge headlight

2 -	Auxiliary heater control unit -J364-

q	Fitting location and connectors: → chapter

3 -	Mechatronic unit for dual clutch gearbox -J743-

q	Fitting location: on gearbox

4 -	ABS control unit -J104-

q	Fitting location and connector: → chapter

5 -	Power steering control unit -J500-

q	Fitting location and connectors: → chapter

6 -	Battery monitor control unit -J367-

q	Fitting location and connector: → chapter

7 -	Wiper motor control unit -J400-

q	Fitting location: in plenum chamber

8 -	Automatic gearbox control unit -J217-

q	Fitting location and connector: → chapter

9 -	Engine control unit -J623-

q	Fitting location and 154-pin connector: → chapter

q	Fitting location and 196-pin connector: → chapter

10 -	Output module for left headlight -J667-

q	Fitting location: in left headlight

10 -	Control unit for left daytime running light and side light -J860-

q	Fitting location: in left gas discharge headlight

11 -	Radiator fan control unit -J293-

q	Fitting location: on radiator

12 -	Adaptive cruise control unit -J428-

q	Fitting location and connector: → chapter

AUDI A3 2013 Overview of control units (5-door) Overview of control units (5-door)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of additional control units and components (5-door, with hybrid drive) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Output module for right headlight -J668-

q	Fitting location: in right headlight

1 -	Control unit for right daytime running light and side light -J861-

q	Fitting location: in right gas discharge headlight

2 -	Auxiliary heater control unit -J364-

q	Fitting location and connectors: → chapter

3 -	Mechatronic unit for dual clutch gearbox -J743-

q	Fitting location: on gearbox

4 -	ABS control unit -J104-

q	Fitting location and connector: → chapter

5 -	Battery monitor control unit -J367-

q	Fitting location and connector: → chapter

6 -	Wiper motor control unit -J400-

q	Fitting location: in plenum chamber

7 -	Power steering control unit -J500-

q	Fitting location and connectors: → chapter

8 -	Engine control unit -J623-

q	Fitting location and 154-pin connector: → chapter

q	Fitting location and 196-pin connector: → chapter

9 -	Output module for left headlight -J667-

q	Fitting location: in left headlight

9 -	Control unit for left daytime running light and side light -J860-

q	Fitting location: in left gas discharge headlight

10 -	Radiator fan control unit -J293-

q	Fitting location: on radiator

11 -	Adaptive cruise control unit -J428-

q	Fitting location and connector: → chapter

AUDI A3 2013 Overview of additional control units and components (5-door, with hybrid drive) Overview of additional control units and components (5-door, with hybrid drive)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of control units (Cabriolet) → chapter

1 -	Three-phase current drive -VX54-

q	Fitting location and connector: → chapter

2 -	Maintenance connector for high-voltage system -TW-

q	Fitting location and connector: → chapter

3 -	High voltage heater (PTC) control unit -J848-

q	Fitting location and connector: → chapter

4 -	Brake servo -NX6-

q	Fitting location and connector: → chapter

5 -	Pressure accumulator for brake system -VX70-

q	Fitting location and connector: → chapter

6 -	Power and control electronics for electric drive -JX1-

q	Fitting location and connector: → chapter

7 -	High-voltage battery charger control unit -J1050-

q	Fitting location and connector: → chapter

8 -	High-voltage battery charging socket 1 -UX4-

q	Only for models without Japan equipment

q	Only for models without US equipment

q	Fitting location and connector: → chapter

8 -	High-voltage battery charging socket 1 -UX4-

q	Only for models with Japan equipment

q	for models with US equipment only

q	Fitting location and connector: → chapter

9 -	Control unit for air conditioner compressor -J842-

q	Fitting location and connector: → chapter

AUDI A3 2013 Overview of control units (Cabriolet) Overview of control units (Cabriolet)   Note: t  Overview of control units (3-door) → chapter t  Overview of control units (4-door) → chapter t  Overview of control units (5-door) → chapter t  Overview of additional control units (5-door, with hybrid drive) → chapter

1 -	Output module for right headlight -J668-

q	Fitting location: in right headlight

1 -	Control unit for right daytime running light and side light -J861-

q	Fitting location: in right gas discharge headlight

2 -	Mechatronic unit for dual clutch gearbox -J743-

q	Fitting location: on gearbox

3 -	ABS control unit -J104-

q	Fitting location and connector: → chapter

4 -	Battery monitor control unit -J367-

q	Fitting location and connector: → chapter

5 -	Wiper motor control unit -J400-

q	Fitting location: in plenum chamber

6 -	Power steering control unit -J500-

q	Fitting location and connectors: → chapter

7 -	Engine control unit -J623-

q	Fitting location and 154-pin connector: → chapter

q	Fitting location and 196-pin connector: → chapter

8 -	Output module for left headlight -J667-

q	Fitting location: in left headlight

8 -	Control unit for left daytime running light and side light -J860-

q	Fitting location: in left gas discharge headlight

9 -	Radiator fan control unit -J293-

q	Fitting location: on radiator

10 -	Adaptive cruise control unit -J428-

q	Fitting location and connector: → chapter

AUDI A3 2013 Battery monitor control unit J367 Battery monitor control unit -J367- Fitting location: on the battery.

A -	2-pin connector -T2b- , black

AUDI A3 2013 ABS control unit J104 ABS control unit -J104- Fitting location: in the engine compartment.

A -	ABS control unit -J104-

A1 -	46-pin connector -T46a- , black

AUDI A3 2013 Engine control unit -J623- (154-pin) Fitting location: in engine compartment, between battery and electronics box

A -	Engine control unit -J623-

A1 -	94-pin connector -T94- , black

A2 -	60-pin connector -T60- , black

AUDI A3 2013 Engine control unit -J623- (196-pin) Fitting location: in engine compartment, between battery and electronics box

A -	Engine control unit -J623-

A1 -	91-pin connector -T91- , black

A2 -	105-pin connector -T105- , black

AUDI A3 2013 Power steering control unit J500 Power steering control unit -J500- Fitting location: Steering box

A -	Power steering control unit -J500-

A1 -	3-pin connector -T3z- , black

A2 -	2-pin connector -T2ag- , black

A3 -	5-pin connector -T5f-

AUDI A3 2013 Adaptive cruise control unit J428 Adaptive cruise control unit -J428- Fitting location: in bumper.

A -	Adaptive cruise control unit -J428-

A1 -	8-pin connector -T8m- , black

AUDI A3 2013 Auxiliary heater control unit J364 Auxiliary heater control unit -J364- Fitting location: Near front right longitudinal member

A -	Auxiliary heater control unit -J364-

A1 -	6-pin connector -T6t- , black

A2 -	2-pin connector -T2v- , black

A3 -	2-pin connector -T2x-

A4 -	4-pin connector -T4r-

A5 -	not assigned

A6 -	2-pin connector -T2y-

AUDI A3 2013 Three-phase current drive VX54 Three-phase current drive -VX54- Fitting location: in the engine compartment.

1 -	Three-phase current drive -VX54-

2 -	High-voltage wire 3 for drive motor -P6-

3 -	High-voltage wire 2 for drive motor -P5-

4 -	High-voltage wire 1 for drive motor -P4-

A -	2-pin connector -T2vx- , black

B -	10-pin connector -T10h- , black

AUDI A3 2013 Maintenance connector for high-voltage system TW Maintenance connector for high-voltage system -TW- Fitting location: in the engine compartment.

1 -	Maintenance connector for high-voltage system -TW-

A -	4-pin connector -T4dk- , green

AUDI A3 2013 High voltage heater (PTC) control unit J848 High voltage heater (PTC) control unit -J848- Fitting location: At centre tunnel, close to catalytic converter

1 -	High voltage heater (PTC) control unit -J848-

2 -	High-voltage wire for high-voltage heater (PTC) -P11-

A -	8-pin connector -T8r- , black

AUDI A3 2013 Brake servo NX6 Brake servo -NX6- Fitting location: Close to bulkhead

1 -	Brake servo -NX6-

A -	4-pin connector -T4ae- , black

B -	26-pin connector -T26d- , black

C -	2-pin connector -T2fj- , black

AUDI A3 2013 Pressure accumulator for brake system VX70 Pressure accumulator for brake system -VX70- Fitting location: In left of engine compartment.

1 -	Pressure accumulator for brake system -VX70-

A -	4-pin connector -T4dm- , black

AUDI A3 2013 Power and control electronics for electric drive JX1 Power and control electronics for electric drive -JX1- Fitting location: In left of engine compartment.

1 -	Power and control electronics for electric drive -JX1-

2 -	High-voltage wire for hybrid battery, negative terminal -P2-

3 -	High-voltage wire for hybrid battery, positive terminal -P1-

4 -	High-voltage wire for high-voltage battery charger -P25-

5 -	High-voltage wire 3 for drive motor -P6-

6 -	High-voltage wire 2 for drive motor -P5-

7 -	High-voltage wire 1 for drive motor -P4-

A -	28-pin connector -T28- , black

AUDI A3 2013 High-voltage battery charger control unit J1050 High-voltage battery charger control unit -J1050- Fitting location: In left of engine compartment.

1 -	High-voltage battery charger control unit -J1050-

2 -	High-voltage wire for charging socket

3 -	High-voltage wire for high-voltage battery charger -P25-

4 -	High-voltage wire for high-voltage heater (PTC) -P11-

5 -	High-voltage wire for electrical air conditioner compressor -P3-

A -	60-pin connector -T60a- , black

AUDI A3 2013 High-voltage battery charging socket 1 UX4 High-voltage battery charging socket 1 -UX4- Fitting location: in front bumper.

1 -	High-voltage wire for charging socket

A -	8-pin connector -T8f- , black

B -	High-voltage battery charging socket 1 -UX4-

AUDI A3 2013 High-voltage battery charging socket 1 UX4 High-voltage battery charging socket 1 -UX4- Fitting location: in front bumper.

1 -	High-voltage wire for charging socket

A -	8-pin connector -T8f- , black

B -	High-voltage battery charging socket 1 -UX4-

AUDI A3 2013 Control unit for air conditioner compressor J842 Control unit for air conditioner compressor -J842- Fitting location: in engine compartment, right.

1 -	Control unit for air conditioner compressor -J842-

2 -	High-voltage wire for electrical air conditioner compressor -P3-

A -	8-pin connector -T8s- , black

AUDI A3 2013 Automatic gearbox control unit J217 Automatic gearbox control unit -J217- Fitting location: In front left wheel housing.

1 -	Automatic gearbox control unit -J217-

A -	52-pin connector -T52a- , black

AUDI A3 2013 Overview of coupling stations (3-door models)

Overview of coupling stations (3-door models)

t	Overview of coupling stations (4-door) → chapter

t	Overview of coupling stations (5-door) → chapter

t	Overview of coupling stations (Cabriolet) → chapter

   

1 -	Coupling station for engine pre-wiring

q	Connectors: -T10c-, -T14-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Right coupling station for door wiring harness

q	Connector: -T27a-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Coupling station on right of A-pillar

q	Connector: -T10a-

q	For left-hand drive models only

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

4 -	Seat wiring coupling station, right

q	Connectors: -T3h-, -T5a-, -T6j-, -T10e-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Coupling station for roof wiring harness

q	Connector: -T6ab-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

6 -	Rear right coupling station, rear lid

q	Connectors: -T2l-, -T2k-, -T2ah-, -T2es-

q	Fitting location: → Chapter

q	Overview (5-door): → item

7 -	Coupling station for rear bumper

q	Connectors: -T8z-, -T10f-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

8 -	Coupling station, rear left side of rear lid

q	Connectors: -T2m-, -T17f-

q	Fitting location: → Chapter

q	Overview (5-door): → item

9 -	Seat wiring coupling station, left

q	Connectors: -T3g-, -T5-, -T6i-, -T10d-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

10 -	Door wiring harness coupling station, left

q	Connector: -T27-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

11 -	Coupling station on left A-pillar

q	Connectors, left-hand drive -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Connectors, right-hand drive -T10a-, -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

12 -	Coupling station, alternator

q	Connectors: -T4f-, -T8-, -T10p-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

13 -	Coupling station for radiator fan

q	Connector: -T4g-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

14 -	Coupling station for front bumper

q	Connectors: -T6h-, -T8v-, -T14a-

q	Fitting location: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of coupling stations (4-door models) Overview of coupling stations (4-door models)   Note t  Overview of coupling stations (3-door) → chapter t  Overview of coupling stations (5-door) → chapter t  Overview of coupling stations (Cabriolet) → chapter

1 -	Coupling station for engine pre-wiring

q	Connectors: -T10c-, -T14-

q	Fitting location: → Chapter

2 -	Right coupling station for door wiring harness

q	Connector: -T27a-

q	Fitting location: → Chapter

3 -	Coupling station on right of A-pillar

q	Connector: -T10a-

q	For left-hand drive models only

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

4 -	Seat wiring coupling station, right

q	Connectors: -T3h-, -T5a-, -T6j-, -T10e-

q	Fitting location: → Chapter

5 -	Coupling station for roof wiring harness

q	Connector: -T6ab-

q	Fitting location: → Chapter

6 -	Rear right coupling station for door wiring harness

q	Connector: -T27c-

q	Fitting location: → Chapter

7 -	Coupling station for rear bumper

q	Connectors: -T8z-, -T10f-

q	Fitting location: → Chapter

8 -	Rear left coupling station for door wiring harness

q	Connector: -T27b-

q	Fitting location: → Chapter

9 -	Seat wiring coupling station, left

q	Connectors: -T3g-, -T5-, -T6i-, -T10d-

q	Fitting location: → Chapter

10 -	Door wiring harness coupling station, left

q	Connector: -T27-

q	Fitting location: → Chapter

11 -	Coupling station on left A-pillar

q	Connectors, left-hand drive -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Connectors, right-hand drive -T10a-, -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → chapter

12 -	Coupling station, alternator

q	Connectors: -T4f-, -T8-, -T10p-

q	Fitting location: → Chapter

13 -	Coupling station for radiator fan

q	Connector: -T4g-

q	Fitting location: → Chapter

14 -	Coupling station for front bumper

q	Connectors: -T6h-, -T8v-, -T14a-

q	Fitting location: → Chapter

AUDI A3 2013 Overview of coupling stations (5-door models) Overview of coupling stations (5-door models)   Note t  Overview of coupling stations (3-door) → chapter t  Overview of coupling stations (4-door) → chapter t  Overview of coupling stations (Cabriolet) → chapter

1 -	Coupling station for engine pre-wiring

q	Connectors: -T10c-, -T14-

q	Fitting location: → Chapter

2 -	Right coupling station for door wiring harness

q	Connector: -T27a-

q	Fitting location: → Chapter

3 -	Coupling station on right of A-pillar

q	Connector: -T10a-

q	For left-hand drive models only

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

4 -	Seat wiring coupling station, right

q	Connectors: -T3h-, -T5a-, -T6j-, -T10e-

q	Fitting location: → Chapter

5 -	Coupling station for roof wiring harness

q	Connector: -T6ab-

q	Fitting location: → Chapter

6 -	Rear right coupling station for door wiring harness

q	Connector: -T27c-

q	Overview (4-door): → item

q	Fitting location: → Chapter

7 -	Rear right coupling station, rear lid

q	Connectors: -T2l-, -T2k-, -T2ah-, -T2es-

q	Fitting location: → Chapter

8 -	Coupling station for rear bumper

q	Connectors: -T8z-, -T10f-

q	Fitting location: → Chapter

9 -	Coupling station, rear left side of rear lid

q	Connectors: -T2m-, -T17f-

q	Fitting location: → Chapter

10 -	Rear left coupling station for door wiring harness

q	Connector: -T27b-

q	Overview (4-door): → item

q	Fitting location: → Chapter

11 -	Seat wiring coupling station, left

q	Connectors: -T3g-, -T5-, -T6i-, -T10d-

q	Fitting location: → Chapter

12 -	Door wiring harness coupling station, left

q	Connector: -T27-

q	Fitting location: → Chapter

13 -	Coupling station on left A-pillar

q	Connectors, left-hand drive -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Connectors, right-hand drive -T10a-, -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → chapter

14 -	Coupling station, alternator

q	Connectors: -T4f-, -T8-, -T10p-

q	Fitting location: → Chapter

15 -	Coupling station for radiator fan

q	Connector: -T4g-

q	Fitting location: → Chapter

16 -	Coupling station for front bumper

q	Connectors: -T6h-, -T8v-, -T14a-

q	Fitting location: → Chapter

AUDI A3 2013 Overview of coupling stations (Cabriolet) Overview of coupling stations (Cabriolet)   Note t  Overview of coupling stations (3-door) → chapter t  Overview of coupling stations (4-door) → chapter t  Overview of coupling stations (5-door) → chapter

1 -	Coupling station for engine pre-wiring

q	Connectors: -T10c-, -T14-

q	Fitting location: → Chapter

2 -	Right coupling station for door wiring harness

q	Connector: -T27a-

q	Fitting location: → Chapter

3 -	Coupling station on right of A-pillar

q	Connector: -T10a-

q	For left-hand drive models only

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

4 -	Seat wiring coupling station, right

q	Connectors: -T3h-, -T5a-, -T6j-, -T10e-, -T10r-

q	Fitting location: → Chapter

5 -	Coupling station for rear bumper

q	Connectors: -T8z-, -T10f-

q	Fitting location: → Chapter

6 -	Coupling station, rear left side of luggage compartment lid

q	Connectors: -T12i-, -T12j-, -T2fq-

q	Fitting location: → Chapter

7 -	Seat wiring coupling station, left

q	Connectors: -T3g-, -T5-, -T6i-, -T10d-, -T10q-

q	Fitting location: → Chapter

8 -	Door wiring harness coupling station, left

q	Connector: -T27-

q	Fitting location: → Chapter

9 -	Coupling station on left A-pillar

q	Connectors, left-hand drive -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Connectors, right-hand drive -T10a-, -T17-, -T17a-, -T17b-, -T17c-, -T17d-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → chapter

10 -	Coupling station, alternator

q	Connectors: -T4f-, -T8-, -T10p-

q	Fitting location: → Chapter

11 -	Coupling station for radiator fan

q	Connector: -T4g-

q	Fitting location: → Chapter

12 -	Coupling station for front bumper

q	Connectors: -T6h-, -T8v-, -T14a-

q	Fitting location: → Chapter

AUDI A3 2013 Right coupling station for door wiring harness Right coupling station for door wiring harness Fitting location: on right A-pillar.

A -	27-pin connector -T27a-, black

AUDI A3 2013 Seat wiring coupling station, right Seat wiring coupling station, right Fitting location: Under the seat.

1 -	10-pin connector -T10e-, red

2 -	6-pin, connector -T6j-, green

3 -	3-pin connector -T3h-, yellow

4 -	5-pin connector -T5a-, black

AUDI A3 2013 Rear right coupling station, rear lid Rear right coupling station, rear lid Fitting location: On rear right pillar.

1 -	2-pin connector -T2l-, white

2 -	2-pin connector -T2k-

3 -	2-pin connector -T2ah-, black

4 -	2-pin connector -T2es-, black

AUDI A3 2013 Coupling station for rear bumper Coupling station for rear bumper Fitting location: in bumper.

1 -	8-pin connector -T8z-, black

2 -	10-pin connector -T10f-, black

AUDI A3 2013 Coupling station, rear left side of rear lid Coupling station, rear left side of rear lid Fitting location: On rear left pillar.

1 -	2-pin connector -T2m-, black

2 -	17-pin connector -T17f-, black

AUDI A3 2013 Seat wiring coupling station, left Seat wiring coupling station, left Fitting location: Under the seat.

1 -	10-pin connector -T10d-, red

2 -	6-pin, connector -T6i-, green

3 -	3-pin connector -T3g-, yellow

4 -	5-pin connector -T5-, black

AUDI A3 2013 Door wiring harness coupling station, left Door wiring harness coupling station, left Fitting location: on left A-pillar.

A -	27-pin connector -T27-, black

AUDI A3 2013 Coupling station for engine pre-wiring Coupling station for engine pre-wiring Fitting location: In engine compartment, front left.

1 -	10-pin connector -T10c-, black

q	for models with diesel engines only

2 -	14-pin connector -T14-, grey

AUDI A3 2013 Coupling station for front bumper Coupling station for front bumper Fitting location: in bumper.

1 -	6-pin, connector -T6h-, black

q	only for models without parking aid, with pedestrian protection

1 -	8-pin connector -T8v-, black

q	only for models with parking aid, without pedestrian protection

1 -	14-pin connector -T14a-, black

q	only for models with parking aid and pedestrian protection

AUDI A3 2013 Coupling station, alternator Coupling station, alternator Fitting location: In engine compartment, front left.

1 -	8-pin connector -T8-, black

q	Depending on equipment

1 -	4-pin connector -T4f-, black

q	Depending on equipment

1 -	10-pin connector -T10p-, black

q	Depending on equipment

AUDI A3 2013 Coupling station on left A-pillar, left-hand drive model Coupling station on left A-pillar, left-hand drive model Fitting location: on left A-pillar.

1 -	17-pin connector -T17d-, green

2 -	17-pin connector -T17a-, black

3 -	17-pin connector -T17c-, red

4 -	17-pin connector -T17b-, brown

5 -	17-pin connector -T17-, blue

AUDI A3 2013 Coupling station on left A-pillar, right-hand drive model Coupling station on left A-pillar, right-hand drive model Fitting location: on left A-pillar.

1 -	17-pin connector -T17d-, green

2 -	17-pin connector -T17a-, black

3 -	17-pin connector -T17c-, red

4 -	17-pin connector -T17b-, brown

5 -	17-pin connector -T17-, blue

6 -	10-pin connector -T10a-, white

AUDI A3 2013 Coupling station on right A-pillar, left-hand drive model Coupling station on right A-pillar, left-hand drive model Fitting location: on right A-pillar.

1 -	10-pin connector -T10a-, white

AUDI A3 2013 Coupling station for radiator fan Coupling station for radiator fan Fitting location: in left of engine compartment.

1 -	4-pin connector -T4g-, black

AUDI A3 2013 Coupling station for roof wiring harness Coupling station for roof wiring harness Fitting location: near front roof module.

1 -	6-pin, connector -T6ab-, black

AUDI A3 2013 Rear left coupling station for door wiring harness Rear left coupling station for door wiring harness Fitting location: on left B-pillar.

A -	27-pin connector -T27b-, black

AUDI A3 2013 Rear right coupling station for door wiring harness Rear right coupling station for door wiring harness Fitting location: on right B-pillar.

A -	27-pin connector -T27c-, black

AUDI A3 2013 Seat wiring coupling station, right Seat wiring coupling station, right Fitting location: Under the seat.

1 -	5-pin connector -T5a-, black

2 -	3-pin connector -T3h-, yellow

3 -	6-pin, connector -T6j-, green

4 -	10-pin connector -T10e-, red

5 -	10-pin connector -T10r-, black

AUDI A3 2013 Coupling station, rear left side of luggage compartment lid Coupling station, rear left side of luggage compartment lid Fitting location: behind left side trim in luggage compartment.

1 -	12-pin connector -T12j-, black

2 -	2-pin connector -T2fq-

3 -	12-pin connector -T12i-, black

AUDI A3 2013 Seat wiring coupling station, left Seat wiring coupling station, left Fitting location: Under the seat.

1 -	5-pin connector -T5-, black

2 -	3-pin connector -T3g-, yellow

3 -	6-pin, connector -T6i-, green

4 -	10-pin connector -T10d-, red

5 -	10-pin connector -T10q-, black

AUDI A3 2013 Overview of fuses (3-door)

Overview of fuses (3-door)

t	Overview of fuses (4-door) → chapter

t	Overview of fuses (5-door) → chapter

t	Overview of fuses (Cabriolet) → chapter

   

1 -	Fuse holder A -SA-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Fuse holder B -SB-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Fuse holder F -SF-

q	Fitting location: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

3 -	Fuse holder D -SD-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

4 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

5 -	Fuse holder D -SD-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment up to April 2013: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

6 -	Fuse holder C -SC-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of fuses (4-door) Overview of fuses (4-door)   Note: t  Overview of fuses (3-door) → chapter t  Overview of fuses (5-door) → chapter t  Overview of fuses (Cabriolet) → chapter

1 -	Fuse holder A -SA-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

2 -	Fuse holder B -SB-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder F -SF-

q	Fitting location: → chapter

q	Fuse assignment as of May 2013: → chapter

3 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder D -SD-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

4 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment: → Chapter

5 -	Fuse holder D -SD-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment up to April 2013: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

6 -	Fuse holder C -SC-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

AUDI A3 2013 Overview of fuses (5-door) Overview of fuses (5-door)   Note: t  Overview of fuses (3-door) → chapter t  Overview of fuses (4-door) → chapter t  Overview of fuses (Cabriolet) → chapter

1 -	Fuse holder A -SA-

q	Fitting location without hybrid drive: → chapter

q	Fitting location with hybrid drive: → chapter

q	Fuse assignment with and without hybrid drive, without RS3: → chapter

q	Fuse assignment with RS3: → chapter

2 -	Fuse holder B -SB-

q	Fitting location without hybrid drive: → chapter

q	Fitting location with hybrid drive: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder F -SF-

q	Fitting location: → chapter

q	Fuse assignment as of May 2013: → chapter

3 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder D -SD-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

4 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment: → Chapter

5 -	Fuse holder D -SD-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment up to April 2013: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

6 -	Fuse holder C -SC-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

7 -	Fuse holder in main fuse box in luggage compartment

q	Components: -S131- , -S132- , -S133- , -S1-

q	Fitting location with RS3: → chapter

q	Fuse assignment with RS3: → chapter

8 -	Fuse holder for battery in luggage compartment

q	Components: -S162- , -S163-

q	Fitting location with hybrid drive: → chapter

q	Fuse assignment, with hybrid drive: → chapter

AUDI A3 2013 Overview of fuses (Cabriolet) Overview of fuses (Cabriolet)   Note: t  Overview of fuses (3-door) → chapter t  Overview of fuses (4-door) → chapter t  Overview of fuses (5-door) → chapter

1 -	Fuse holder A -SA-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

2 -	Fuse holder B -SB-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder F -SF-

q	Fitting location: → chapter

q	Fuse assignment as of May 2013: → chapter

3 -	Fuse holder H -SH-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment, from November 2013: → chapter

3 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment: → Chapter

3 -	Fuse holder D -SD-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

3 -	Fuse holder H -SH-

q	Fitting location for right-hand drive models: → chapter

q	Fuse assignment, from November 2013: → Chapter

4 -	Fuse carrier on onboard supply control unit -J519-

q	Components: -S46-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment: → Chapter

5 -	Fuse holder D -SD-

q	Fitting location for left-hand drive models: → chapter

q	Fitting location for right-hand drive models: → item

q	Fuse assignment as of May 2013: → chapter

q	Fuse assignment as of May 2014: → chapter

6 -	Fuse holder C -SC-

q	Fitting location: → chapter

q	Fuse assignment: → Chapter

AUDI A3 2013

Fitting location fuse holder A -SA- , without hybrid drive

SA -	Fuse holder A

SA1 -

Fuse 1 on fuse holder A

SA2 -

Fuse 2 on fuse holder A

SA3 -

Fuse 3 on fuse holder A

SA4 -

Fuse 4 on fuse holder A

SA5 -

Fuse 5 on fuse holder A

AUDI A3 2013

Fitting location fuse holder A -SA- , with hybrid drive

A -	Fuse holder A

SA1 -

Fuse 1 on fuse holder A , → chapter

SA2 -

Fuse 2 on fuse holder A , → chapter

SA3 -

Fuse 3 on fuse holder A , → chapter

SA4 -

Fuse 4 on fuse holder A , → chapter

SA5 -

Fuse 5 on fuse holder A , → chapter

SA6 -

Fuse 6 on fuse holder A , → chapter

AUDI A3 2013

Fuse assignment fuse holder A -SA- , with and without hybrid drive, without RS3

Screw location	Current Flow Diagram designation	Nominal value	Function/component	Terminal
J1A	Fuse 1 on fuse holder A -SA1-	125 A	Supply for the fuses:	30
			-SC4- …-SC14-
			-SC30-
			-SC31-
			-SC38-
			-SC39-
			-SC41-
			-SC42-
			-SC53-
			Front passenger seat adjustment thermal fuse 1 -S46-
			Terminal 15 voltage supply relay -J329-
G1A	Fuse 2 on fuse holder A -SA2-	150 A 1) 200 A 2) 250 A 3) 400 A 4) 250 A 5)	Alternator -C-	30
			Power and control electronics for electric drive -JX1- 5)
E1A	Fuse 3 on fuse holder A -SA3-	80 A	Power steering control unit -J500-	30
K2A	Fuse 4 on fuse holder A -SA4-	80 A	Supply for the fuses:	30
			-SC15- …-SC20-
			-SC23- …-SC28-
			-SB43- …-SB45-
L1A	Fuse 5 on fuse holder A -SA5-	80 A 5) 50 A 6)	Radiator fan control unit -J293-	30
P1A	Fuse 6 on fuse holder A -SA6-	50 A 5)	Mechatronic unit for dual clutch gearbox -J743- 5) 7)	30

1) for models with 90 A alternator only, up to April 2013

2) for models with 140 A alternator only, up to April 2013

3) for models with 180 A alternator only, up to April 2013

4) for models with alternator only, from May 2013

5) for models with hybrid drive only

6) for models with hybrid drive only

7) for models with 6-speed dual clutch gearbox 0DD only

AUDI A3 2013

Fuse assignment, fuse holder A -SA- , with RS3

Screw location	Current Flow Diagram designation	Nominal value	Function/component	Terminal
J1A	Fuse 1 on fuse holder A -SA1-	80 A	Radiator fan control unit -J293-	30
G1A	Fuse 2 on fuse holder A -SA2-	400 A	Alternator -C-	30
E1A	Fuse 3 on fuse holder A -SA3-	-		-
K2A	Fuse 4 on fuse holder A -SA4-	80 A	Power steering control unit -J500-	30
L1A		-		-

AUDI A3 2013

Fitting location fuse holder B -SB- , without hybrid drive

A -	Fuse holder B -SB- ; → chapter

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

AUDI A3 2013

Fitting location fuse holder B -SB- , with hybrid drive

A -	Fuse holder B -SB- ; → chapter

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

AUDI A3 2013 Fuse assignment on fuse holder B SB

Fuse assignment on fuse holder B -SB-

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder B -SB1-	40 A	ABS control unit -J104-	30
F2	Fuse 2 on fuse holder B -SB2-	40 A	ABS control unit -J104-	30
F3	Fuse 3 on fuse holder B -SB3-	15 A 1) 30 A 2)	Engine control unit -J623-	87
F4	Fuse 4 on fuse holder B -SB4-	5 A 2) 14) 10 A 1)	Oil level and oil temperature sender -G266-	87
			Engine component current supply relay -J757-14)
			Radiator fan control unit -J293-
			Charge pressure control solenoid valve -N75-2)
			Activated charcoal filter solenoid valve 1 -N80- 3) 4)
			Camshaft control valve 1 -N205-3) 4)
			Camshaft control valve 2 -N208- 4)
			Turbocharger air recirculation valve -N249- 5)
			Exhaust camshaft control valve 1 -N318- 4)
			Intake manifold flap valve -N316- 5)
			Exhaust gas recirculation cooler changeover valve -N345- 2)
			High-pressure valve for gas mode -N372- 4) 6)
			Valve for oil pressure control -N428- 4) 5)
			Piston cooling jet control valve -N522- 5)
			Air mass meter -G70- 5)
			Low heat output relay -J359- 2)
			High heat output relay -J360- 2)
			Relay for reducing agent metering system -J963- 19)
			Inlet cam actuator for cylinder 2 -N583- 4)
			Exhaust cam actuator for cylinder 2 -N587- 4)
			Inlet cam actuator for cylinder 3 -N591- 4)
			Exhaust cam actuator for cylinder 3 -N595- 4)
			Coolant shortage indicator control unit -J120- 13)
F5	Fuse 5 on fuse holder B -SB5-	10 A 5) 2) 13) 7.5 A 6) 15 A 14)	Engine component current supply relay -J757- 5)	87
			Activated charcoal filter solenoid valve 1 -N80- 14)
			Valve for oil pressure control -N428- 14)
			Intake manifold flap valve -N316- 14)
			Charge pressure control solenoid valve -N75- 14)
			Turbocharger air recirculation valve -N249- 14)
			Oil level and oil temperature sender -G266- 14)
			Exhaust flap control unit -J883- 14)
			Exhaust flap control unit 2 -J945- 14)
			Injector 2 for cylinder 1 -N532- 5)
			Injector 2 for cylinder 2 -N533- 5)
			Injector 2 for cylinder 3 -N534- 5)
			Injector 2 for cylinder 4 -N535- 5)
			Actuator 1 for camshaft adjustment -F366- 5)
			Actuator 2 for camshaft adjustment -F367- 5)
			Actuator 3 for camshaft adjustment -F368- 5)
			Actuator 4 for camshaft adjustment -F369- 5)
			Actuator 5 for camshaft adjustment -F370- 5)
			Actuator 6 for camshaft adjustment -F371- 5)
			Actuator 7 for camshaft adjustment -F372- 5)
			Actuator 8 for camshaft adjustment -F373- 5)
			Fuel pressure regulating valve -N276- 2)
			Fuel metering valve -N290- 2)
			Camshaft control valve 1 -N205- 2)
			Relay for gas shut-off valves -J908- 6)
			Gas injection valve 1 -N366- 6)
			Gas injection valve 2 -N367- 6)
			Gas injection valve 3 -N368- 6)
			Gas injection valve 4 -N369- 6)
			Coolant valve for gearbox -N488- 13)
			Coolant pump for high-temperature circuit -V467- 13)
			Coolant circulation pump 2 -V178- 13)
F6	Fuse 6 on fuse holder B -SB6-	5 A	Brake light switch -F-	87
			Brake pedal switch -F47- 14)
			Brake pedal switch -F63-
F7	Fuse 7 on fuse holder B -SB7-	10 A2) 3) 4) 18) 5 A 5) 7) 7,5 A 5) 8) 15 A 13) 5 A 14)	Fuel pressure regulating valve -N276- 3) 4)	87
			Solenoid valve for coolant circuit -N492- 14)
			Coolant circulation pump -V50- 14)
			Additional coolant pump relay -J496- 14)
			Ethanol concentration sender -G708- 18)
			Continued coolant circulation pump -V51- 3) 4) 18)
			Coolant shut-off valve -N82- 5)
			Coolant valve for gearbox -N488- 5)
			Valve for oil pressure control -N428- 2)
			Coolant valve for cylinder head -N489- 2)
			Charge air cooling pump -V188- 2)
			Auxiliary pump for heating -V488- 2)
			Coolant changeover valve 1 -N632- 13)
			Coolant changeover valve 2 -N633- 13)
			Coolant pump for low-temperature circuit -V468- 13)
F8	Fuse 8 on fuse holder B -SB8-	10 A2) 3) 4) 15 A 5) 9) 13) 14)	Lambda probe heater -Z19-	87
			Lambda probe 1 heater after catalytic converter -Z29-
F9	Fuse 9 on fuse holder B -SB9-	20 A 3) 4) 10 A 5) 14) 5 A 2)	Ignition coil 1 with output stage -N70- 3) 4)	87
			Camshaft control valve 1 -N205- 14)
			Exhaust camshaft control valve 1 -N318- 14)
			Ignition coil 2 with output stage -N127- 3) 4)
			Ignition coil 3 with output stage -N291- 3) 4)
			Ignition coil 4 with output stage -N292- 3) 4)
			Exhaust flap control unit -J883- 5)
			Activated charcoal filter solenoid valve 1 -N80- 5)
			Camshaft control valve 1 -N205- 5)
			Exhaust camshaft control valve 1 -N318- 5)
			Continued coolant circulation pump -V51- 5)
			Automatic glow period control unit -J179- 2)
			Air mass meter -G70- 2)
			Heater element for crankcase breather -N79- 2)
			Fuel tank shut-off valve -N288- 13)
F10	Fuse 10 on fuse holder B -SB10-	15 A 1) 20 A 2) 14)	Fuel pump control unit -J538-	87
F11	Fuse 11 on fuse holder B -SB11-	40 A 50 A 13)	Auxiliary air heater element -Z35- 2)	87
			Secondary air pump motor -V101- 5) 13)
F12	Fuse 12 on fuse holder B -SB12-	40 A	Auxiliary air heater element -Z35- 2)	87
F13	Fuse 13 on fuse holder B -SB13-	15 A 10) 15) 16) 30 A 11) 17)	Mechatronic unit for dual clutch gearbox -J743- 10) 11) 15) 16)	30
			Automatic gearbox control unit -J217- 17)
F14	Fuse 14 on fuse holder B -SB14-	30 A 14)	Ignition coil 1 with output stage -N70- 14)	87
			Ignition coil 2 with output stage -N127- 14)
			Ignition coil 3 with output stage -N291- 14)
			Ignition coil 4 with output stage -N292- 14)
			Ignition coil 5 with output stage -N323- 14)
F15	Fuse 15 on fuse holder B -SB15-	15 A	Horn relay -J413-	30
F16	Fuse 16 on fuse holder B -SB16-	5 A 6) 10 A 13) 20 A 5) 30 A 14)	Relay for gas shut-off valves -J908- 6)	30
			Fuel tank shut-off valve 1 -N361- 6)
			Fuel tank shut-off valve 2 -N362- 6)
			Engine component current supply relay -J757- 5) 14)
			Ignition coil 1 with output stage -N70- 5)
			Ignition coil 2 with output stage -N127- 5)
			Ignition coil 3 with output stage -N291- 5)
			Ignition coil 4 with output stage -N292- 5)
			Power and control electronics for electric drive -JX1- 13)
			High-voltage battery charger control unit -J1050- 13)
			Fuse 14 on fuse holder B -SB14- 14)
			Fuse 31 on fuse holder B -SB31- 14)
F17	Fuse 17 on fuse holder B -SB17-	7.5 A	Main relay -J271- 1)	30
			Terminal 30 voltage supply relay -J317- 2)
			Engine control unit -J623-
			ABS control unit -J104-
F18	Fuse 18 on fuse holder B -SB18-	5 A	Battery monitor control unit -J367-	30
			Data bus diagnostic interface -J533-
F19	Fuse 19 on fuse holder B -SB19-	30 A	Wiper motor control unit -J400-	30
F20	Fuse 20 on fuse holder B -SB20-	10 A	Alarm horn -H12-	30
F21	not assigned	-		-
F22	Fuse 22 on fuse holder B -SB22-	5 A	Engine control unit -J623-	50
F23	Fuse 23 on fuse holder B -SB23-	30 A	Starter -B-	50
F24	Fuse 24 on fuse holder B -SB24-	40 A	Auxiliary air heater element -Z35- 2)	87 2) 30 13)
			Brake servo -NX6- 13)
F25	not assigned	-		-
F26	not assigned	-		-
F27	not assigned	-		-
F28	not assigned	-		-
F29	not assigned	-		-
F30	not assigned	-		-
F31	Fuse 31 on fuse holder B -SB31-	5 A 7) 12) 7.5 A 13) 15 A 8) 10 A 14)	Output module for left headlight -J667- 7) 12)	87
			Fuel metering valve -N290- 14)
			Vacuum pump relay -J57- 8)
			Vacuum pump for brakes -V192- 8)
			Coolant circulation pump before power and control electronics for electric drive -V508- 13)
F32	Fuse 32 on fuse holder B -SB32-	5 A	Output module for right headlight -J668- 12)	87
			Output module for left headlight -J667- 8) 12)
F33	Fuse 33 on fuse holder B -SB33-	30 A	Brake system pressure accumulator -VX70- 13)	30
F34	Fuse 34 on fuse holder B -SB34-	5 A	Brake servo -NX6- 13)	30
F35	Fuse 35 on fuse holder B -SB35-	7.5 A	Air conditioning system relay -J32- 13)	30
			Pressure sender for refrigerant circuit -G805- 13)
			Refrigerant pressure and temperature sender -G395- 13)
			Control unit for air conditioning compressor -J842- 13)
			High voltage heater (PTC) control unit -J848- 13)
F36	not assigned
F37	Fuse 37 on fuse holder B -SB37-	20 A	Auxiliary heater control unit -J364-	30
F38	Fuse 38 on fuse holder B -SB38-	20 A	Vacuum pump relay -J57- 7)	30

1) Only models with petrol engine

2) for models with diesel engine only

3) for models with 1.2 l engine only

4) for models with 1.4 l engine only

5) for models with 1.8 l or 2.0 l engine only

6) for CNG models only

7) up to April 2013

8) From May 2013

9) for models with engine code CPTA, CZEA only

10) for models with dual clutch gearbox 0D9 only

11) for models with dual clutch gearbox 0CW only

12) for models with LED headlights only

13) for models with hybrid drive only

14) for RS3 only

15) for models with dual clutch gearbox 0BH only

16) for models with dual clutch gearbox 0DE only

17) for models with 6-speed automatic gearbox only

18) for models with Brazil equipment only

19) from November 2015

AUDI A3 2013 Fitting location of fuse holder C SC

Fitting location of fuse holder C -SC-

A -	Fuse holder C -SC- , → chapter

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

AUDI A3 2013 Fuse assignment, fuse holder C SC

Fuse assignment, fuse holder C -SC-

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder C -SC1-	30 A	Control unit for reducing agent metering system -J880-	30
F2	Fuse 2 on fuse holder C -SC2-	10 A 1)	Driver seat lumbar support adjustment switch -E176- 1)	30
			Front passenger seat lumbar support adjustment switch -E177- 1)
			Driver seat lumbar support longitudinal adjustment motor -V125- 1)
			Front passenger seat lumbar support longitudinal adjustment motor -V126- 1)
			Driver seat lumbar support height adjustment motor -V129- 1)
			Front passenger seat lumbar support height adjustment motor -V130- 1)
F3	Fuse 3 on fuse holder C -SC3-	40 A	Convertible roof actuation hydraulic pump relay -J321-	30
			Hydraulic pump relay 2 for convertible roof -J588-
			Convertible roof actuation hydraulic pump -V118-
F4	Fuse 4 on fuse holder C -SC4-	7.5 A	Multimedia system operating unit -E380-	30
			Control unit 1 for information electronics -J794-
F5	Fuse 5 on fuse holder C -SC5-	5 A	Data bus diagnostic interface -J533-	30
F6	Fuse 6 on fuse holder C -SC6-	5 A	Selector lever -E313- 15)	30
			Anti-theft alarm sensor -G578- 16)
F7	Fuse 7 on fuse holder C -SC7-	10 A	Heated rear window relay -J9-	30
			Heater control unit -J65-
			Climatronic control unit -J255-
			Air conditioning system control unit -J301-
			Selector lever -E313- 16)
			Remote control receiver for auxiliary heater -R64-
F8	Fuse 8 on fuse holder C -SC8-	10 A	Light switch -E1-	30
			Electromechanical parking brake button -E538-
			Humidity sender -G355-
			Rain and light sensor -G397-
			Anti-theft alarm sensor -G578- 15)
			16-pin connector -T16-
			Emergency call module control unit and communication unit -J949- 9)
			Front roof module -WX3-
F9	Fuse 9 on fuse holder C -SC9-	1 A 1) 5 A 15)	Steering column electronics control unit -J527- 1) 15)	30
F10	Fuse 10 on fuse holder C -SC10-	5 A	Display unit for front information display and operating unit control unit -J685-	30
F11	Fuse 11 on fuse holder C -SC11-	15 A 2) 25 A 1)	All-wheel drive control unit -J492- 2)	30
			Control unit for front left belt tensioner -J854- 1)
F12	Fuse 12 on fuse holder C -SC12-	15 A 4) 20 A 3)	Control unit 1 for information electronics -J794-	30
F13	Fuse 13 on fuse holder C -SC13-	20 A 15 A 9)	Electronically controlled damping control unit -J250-	30
			Maintenance connector for high-voltage system -TW- 9)
F14	Fuse 14 on fuse holder C -SC14-	30 A	Fresh air blower control unit -J126-	30
F15	Fuse 15 on fuse holder C -SC15-	10 A	Control unit for electronic steering column lock -J764-	30
F16	Fuse 16 on fuse holder C -SC16-	7.5 A	Chip card reader control unit -J676-	30
			TV tuner -R78-
			Aerial amplifier for mobile telephone -R86-
			Telephone bracket -R126-
			Connection for external audio sources -R199-
F17	Fuse 17 on fuse holder C -SC17-	5 A	Control unit in dash panel insert -J285-	30
F18	Fuse 18 on fuse holder C -SC18-	7.5 A	Reversing camera system control unit -J772-	30
F19	Fuse 19 on fuse holder C -SC19-	7.5 A	Entry and start authorisation control unit -J518-	30
			Interface control unit for vehicle location system -J843-
F20	Fuse 20 on fuse holder C -SC20-	15 A 2) 7.5 A 5) 6) 7)	Driver seat lumbar support adjustment switch -E176- 2)	30
			Front passenger seat lumbar support adjustment switch -E177- 2)
			Driver seat lumbar support longitudinal adjustment motor -V125- 2)
			Front passenger seat lumbar support longitudinal adjustment motor -V126- 2)
			Driver seat lumbar support height adjustment motor -V129- 2)
			Front passenger seat lumbar support height adjustment motor -V130- 2)
			Control unit for fuel tank leak detection -J909- 5) 7)
			Relay for reducing agent metering system -J963- 6) 7)
F21	not assigned	-		-
F22	not assigned	-		-
F23	Fuse 23 on fuse holder C -SC23-	40 A	Onboard supply control unit -J519-	30
F24	Fuse 24 on fuse holder C -SC24-	20 A 30 A 8)	Sliding sunroof adjustment control unit -J245-	30
			Convertible roof actuation control unit -J256- 8)
F25	Fuse 25 on fuse holder C -SC25-	30 A	Driver door control unit -J386-	30
			Rear driver side door control unit -J926-
			Control unit with rear driver side window regulator motor -J1016-
			Rear left window regulator motor -V26-
F26	Fuse 26 on fuse holder C -SC26-	30 A	Onboard supply control unit -J519- t  Front seat heating	30
F27	Fuse 27 on fuse holder C -SC27-	30 A	Digital sound package control unit -J525-	30
F28	Fuse 28 on fuse holder C -SC28-	5 A 7) 8) 20 A 2)	Convertible roof actuation control unit -J256- 7) 8)	30
			Trailer detector control unit -J345- 2)
F29	Fuse 29 on fuse holder C -SC29-	7.5 A	Glove compartment light switch -E26-	30
			Driver side vanity mirror contact switch -F147-
			Front passenger side vanity mirror contact switch -F148-
			Glove compartment light -W6-
			Front passenger side illuminated vanity mirror -W14-
			Left luggage compartment light -W18-
			Driver side illuminated vanity mirror -W20-
			Right luggage compartment light -W35-
			Front roof module -WX3-
			Front interior light -WX1-
			Special vehicle control unit -J608-
F30	Fuse 30 on fuse holder C -SC30-	25 A 2)	Seat belt tensioner relay -J669- 2)	30
			Control unit for front left belt tensioner -J854- 2)
F31	Fuse 31 on fuse holder C -SC31-	40 A	Onboard supply control unit -J519-	30
F32	Fuse 32 on fuse holder C -SC32-	7.5 A	Adaptive cruise control unit -J428-	15
			Parking aid control unit -J446-
			Park assist steering control unit -J791-
			Lane change assist control unit -J769-
			Lane change assist control unit 2 -J770-
			Front camera for driver assist systems -R242-
F33	Fuse 33 on fuse holder C -SC33-	5 A	Airbag control unit -J234-	15
			Front passenger airbag deactivated warning lamp -K145-
F34	Fuse 34 on fuse holder C -SC34-	7.5 A	Auto-hold button -E540-	15
			Reversing light switch -F4-
			Pressure sender for refrigerant circuit -G805-
			Relay for power sockets -J807-
			Control unit for structure-borne sound -J869-
			Seat belt tensioner relay -J669- 2)
F35	Fuse 35 on fuse holder C -SC35-	10 A	Headlight range control regulator -E102-	15
			Interior mirror -EX5-
			Air quality sensor -G238-
			Humidity sender in fresh air intake duct -G657-
			Control unit for cornering light and headlight range control -J745-
			Headlight range control unit -J431-
			16-pin connector -T16-
			Left headlight range control motor -V48-
			Right headlight range control motor -V49-
F36	Fuse 36 on fuse holder C -SC36-	15 A	Output module for right headlight -J668-	15
			Output module 1 for right LED headlight -A27-
F37	Fuse 37 on fuse holder C -SC37-	15 A	Output module for left headlight -J667-	15
			Output module 1 for left LED headlight -A31-
F38	Fuse 38 on fuse holder C -SC38-	20 A 2) 15 A 9)	Trailer detector control unit -J345- 2)	30
			Hybrid battery unit -AX1- 9)
F39	Fuse 39 on fuse holder C -SC39-	30 A	Front passenger door control unit -J387-	30
			Rear passenger side door control unit -J927-
			Control unit with rear passenger side window regulator motor -J1017-
			Rear right window regulator motor -V27-
F40	Fuse 40 on fuse holder C -SC40-	20 A	Electric socket -U-	87
			Cigarette lighter -U1-
			12 V socket -U5-
F41	Fuse 41 on fuse holder C -SC41-	1 A 2) 25 A 1)	Steering column electronics control unit -J527- 2)	30
			Control unit for front right belt tensioner -J855- 1)
F42	Fuse 42 on fuse holder C -SC42-	40 A	Onboard supply control unit -J519-	30
F43	Fuse 43 on fuse holder C -SC43-	30 A	Onboard supply control unit -J519-	30
F44	Fuse 44 on fuse holder C -SC44-	15 A	Trailer detector control unit -J345- 2)	30
			All-wheel drive control unit -J492- 1)
F45	Fuse 45 on fuse holder C -SC45-	15 A	Driver seat adjustment operating unit -E470-	30
			Driver seat lumbar support adjustment switch -E176-
F46	not assigned	-		-
F47	Fuse 47 on fuse holder C -SC47-	15 A	Rear window wiper motor -V12-	15
F48	Fuse 48 on fuse holder C -SC48-	10 A 9) 5 A13) 14)	Front left headlight -MX1-14)	15
			Front right headlight -MX2-14)
			Engine sound generator control unit -J943- 9)
F49	Fuse 49 on fuse holder C -SC49-	5 A	Clutch position sender -G476-	15
			Starter relay 1 -J906-
			Starter relay 2 -J907-
			Hybrid battery unit -AX1- 9)
			Power and control electronics for electric drive -JX1- 9)
			Current supply relay -J16-
F50	not assigned
F51	Fuse 51 on fuse holder C -SC51-	25 A 2)	Control unit for front right belt tensioner -J855- 2)	15
F52	not assigned
F53	Fuse 53 on fuse holder C -SC53-	30 A 10) 12) 40 A 11) 20 A 8)	Heated rear window relay -J9-	30
			Heated rear window -Z1-

1) From May 2013

2) up to April 2013

3) for models with MMI only

4) Only models with radio

5) Only models with petrol engine

6) for models with diesel engine only

7) from November 2013

8) for Cabriolet only

9) for models with hybrid drive only

10) for 3-door models only

11) for 4-door models only

12) for 5-door models only

13) for RS3 only

14) for models with LED headlights only

15) From May 2015

16) up to April 2015

On models with hybrid drive, fuse SC13 bears an emergency marking. When changing this fuse, an emergency marking must be affixed to it.

AUDI A3 2013 Fitting location, fuse holder D SD

Fitting location, fuse holder D -SD-

Fitting location fuse holder D -SD- , left-hand drive

A -	Fuse holder D -SD-

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

Fitting location fuse holder D -SD- , right-hand drive

E -	Fuse holder D -SD-

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

Fuse assignment fuse holder D -SD- , from March 2012, up to April 2013

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder D -SD1-	15 A	Socket -U- 1)	15
F2	Fuse 2 on fuse holder D -SD2-	10 A	Special vehicle control unit -J608- 2)	30
F3	not assigned	-		-
F4	not assigned	-		-

1) for driving school models only

2) for models with driving aids only

AUDI A3 2013

Fuse assignment fuse holder D -SD- , from May 2013

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder D -SD1-	20 A	Trailer detector control unit -J345-	30
F2	Fuse 2 on fuse holder D -SD2-	15 A	Trailer detector control unit -J345-	30
F3	Fuse 3 on fuse holder D -SD3-	20 A	Trailer detector control unit -J345-	30
F4	Fuse 4 on fuse holder D -SD4-	15 A	not assigned	-

AUDI A3 2013

Fuse assignment fuse holder D -SD- , from May 2014

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder D -SD1-	25 A	Trailer detector control unit -J345-	30
F2	Fuse 2 on fuse holder D -SD2-	15 A	Trailer detector control unit -J345-	30
F3	Fuse 3 on fuse holder D -SD3-	25 A	Trailer detector control unit -J345-	30
F4	Fuse 4 on fuse holder D -SD4-	15 A	Trailer detector control unit -J345-	30

AUDI A3 2013

Fitting location fuse holder F -SF- , from May 2013

B -	Fuse holder F -SF- , → chapter

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

AUDI A3 2013

Fuse assignment fuse holder F -SF- , from May 2013

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 on fuse holder F -SF1-	15 A	Socket -U- 1)	15
F2	Fuse 2 on fuse holder F -SF2-	10 A	Special vehicle control unit -J608- 2)	30

1) for driving school models only

2) for models with driving aids only

AUDI A3 2013 Fitting location of fuse holder H SH

Fitting location of fuse holder H -SH-

Fitting location fuse holder H -SH- , left-hand drive

A -	Fuse holder H -SH-

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

Fitting location fuse holder H -SH- , right-hand drive

D -	Fuse holder H -SH-

Fuse colours:

t	50 A - red

t	40 A - orange

t	30 A - light-green

t	25 A - natural (white)

t	20 A - yellow

t	15 A - light blue

t	10 A - red

t	7.5 A - brown

t	5 A - light-brown

t	3 A - violet

Fuse assignment on fuse holder H -SH-

Slot	Current Flow Diagram designation	Nominal value	Function/component	Terminal
F1	Fuse 1 in fuse holder H -SH1-	30 A	Control unit for right neck heating -J847-	87
			Blower for right neck heating -V451-
F2	Fuse 2 in fuse holder H -SH2-	30 A	Control unit for left neck heating -J846-	87
			Blower for left neck heating -V450-

AUDI A3 2013

Fuse holder on onboard supply control unit -J519- , left-hand drive

A -	Front passenger seat adjustment thermal fuse 1 -S46- - 15 A

B -	not assigned

AUDI A3 2013

Fuse holder on onboard supply control unit -J519- , right-hand drive

A -	not assigned

B -	Front passenger seat adjustment thermal fuse 1 -S46- - 15 A

C -	not assigned

D -	Fuse holder H -SH- , → chapter

E -	Fuse holder D -SD- , → chapter

AUDI A3 2013 Fuse holder for battery in luggage compartment, with hybrid drive

Fuse holder for battery in luggage compartment, with hybrid drive

1 -	Fuse 1 (30) in fuse holder on battery -S162- - 200 A

2 -	Fuse 2 (30), in battery fuse holder -S163-

AUDI A3 2013 Fitting location of fuse holder in main fuse box in luggage compartment, with RS3

Fitting location of fuse holder in main fuse box in luggage compartment, with RS3

A -	Fuse holder in main fuse box in luggage compartment

1 -	Fuse 3 -S133-

2 -	Fuse 2 -S132-

3 -	Fuse 1 -S131-

4 -	Fuse 1 in fuse holder -S1-

AUDI A3 2013 Fuse assignment, fuse holder in main fuse box in luggage compartment

Fuse assignment, fuse holder in main fuse box in luggage compartment

Screw location	Current Flow Diagram designation	Nominal value	Function/component	Terminal
A1	Fuse 1 -S131-	125 A	Supply for the fuses:	30
			-SC4- …-SC14-
			-SC30-
			-SC31-
			-SC38-
			-SC39-
			-SC41-
			-SC42-
			-SC53-
			Front passenger seat adjustment thermal fuse 1 -S46-
			Terminal 15 voltage supply relay -J329-
B1	Fuse 2 -S132-	80 A	Supply for the fuses:	30
			-SC15- …-SC20-
			-SC23- …-SC28-
			-SB43- …-SB45-
C1	Fuse 3 -S133-	125 A	Fuse 4 on fuse holder A -SA4-	30
			Fuse 1 on fuse holder B -SB1-
			Fuse 2 on fuse holder B -SB2-
			Main relay -J271-
G1	Fuse 1 in fuse holder -S1-	5 A	Battery monitor control unit -J367-	30

AUDI A3 2013 Overview of relays (3-door)

Overview of relays (3-door)

t	Overview of relays (4-door) → chapter

t	Overview of relays (5-door) → chapter

t	Overview of relays (Cabriolet) → chapter

   

1 -	Relay carrier on left under dash panel

q	Components: -J9-, -J329-, -J669-, -J807-, -J963-

q	Relay slot assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

2 -	Relay carrier on E-box

q	in left of engine compartment.

q	Components: -J16-, -J179-, -J271-, -J299-, -J317-, -J359-, -J360-, -J413-, -J757-, -J906-, -J907-

q	Relay slot assignment: → Chapter

q	Overview (4-door): → item

q	Overview (5-door): → item

q	Overview (Cabriolet): → item

AUDI A3 2013 Overview of relays (4-door) Overview of relays (4-door)   Note t  Overview of relays (3-door) → chapter t  Overview of relays (5-door) → chapter t  Overview of relays (Cabriolet) → chapter

1 -	Relay carrier on left under dash panel

q	Components: -J9-, -J329-, -J669-, -J807-, -J963-

q	Relay slot assignment: → Chapter

2 -	Relay carrier on E-box

q	in left of engine compartment.

q	Components: -J16-, -J179-, -J271-, -J299-, -J317-, -J359-, -J360-, -J413-, -J757-, -J906-, -J907-

q	Relay slot assignment: → Chapter

AUDI A3 2013 Overview of relays (5-door) Overview of relays (5-door)   Note t  Overview of relays (3-door) → chapter t  Overview of relays (4-door) → chapter t  Overview of relays (Cabriolet) → chapter

1 -	Relay carrier on left under dash panel

q	Components: -J9-, -J329-, -J669-, -J807-, -J963-

q	Relay slot assignment: → Chapter

2 -	Relay carrier on E-box

q	in left of engine compartment.

q	Components: -J16-, -J32-, -J120-, -J179-, -J271-, -J299-, -J317-, -J359-, -J360-, -J413-, -J757-, -J906-, -J907-, -J908-

q	Relay slot assignment, without hybrid drive: → chapter

q	Relay slot assignment, with hybrid drive: → chapter

q	Relay slot assignment, with RS3: → chapter

AUDI A3 2013 Overview of relays (Cabriolet) Overview of relays (Cabriolet)   Note t  Overview of relays (3-door) → chapter t  Overview of relays (4-door) → chapter t  Overview of relays (5-door) → chapter

1 -	Relay carrier on left under dash panel

q	Components: -J9-, -J329-, -J669-, -J807-, -J963-

q	Relay slot assignment: → Chapter

2 -	Relay carrier on E-box

q	in left of engine compartment.

q	Components: -J16-, -J179-, -J271-, -J299-, -J317-, -J359-, -J360-, -J413-, -J757-, -J906-, -J907-

q	Relay slot assignment: → Chapter

3 -	Additional relay carrier, left-hand drive model

q	Under dash panel on left.

q	Components: -J989-

q	Relay slot assignment, left-hand drive models: → chapter

q	Relay slot assignment, right-hand drive models: → item

3 -	Additional relay carrier, right-hand drive model

q	On onboard supply control unit -J519-.

q	Components: -J989-

q	Relay slot assignment, right-hand drive models: → chapter

AUDI A3 2013 Relay locations on E-box, without hybrid drive

Relay locations on E-box, without hybrid drive

1 -	Automatic glow period control unit -J179-

q

Slot A6

2 -	Low heat output relay -J359-

q

Slot A7

3 -

Vacant

q

Slot A10

4 -	Starter relay 2 -J907-

q

Slot A2

5 -	Starter relay 1 -J906-

q

Slot A1

6 -	Horn relay -J413-

q

Slot A3

7 -	High heat output relay -J360-

q

Slot A4

7 -	Secondary air pump relay -J299-

q

Slot A4

8 -	Main relay -J271-

q

Slot A5

q	for models with petrol engines only

8 -	Terminal 30 voltage supply relay -J317-

q

Slot A5

q	for models with diesel engines only

9 -	Engine component current supply relay -J757-

q

Slot A8

9 -	Relay for gas shut-off valves -J908-

q

Slot A8

q	for models with engine code CPWA only

10 -	Current supply relay -J16-

q

Slot A9

AUDI A3 2013 Relay locations on E-box, with hybrid drive

Relay locations on E-box, with hybrid drive

1 -

Vacant

q

Slot A7

2 -

Vacant

q

Slot A2

3 -

Vacant

q

Slot A1

4 -	Horn relay -J413-

q

Slot A3

5 -	Secondary air pump relay -J299-

q

Slot A4

6 -	Main relay -J271-

q

Slot A5

7 -	Air conditioning system relay -J32-

q

Slot A8

8 -	Current supply relay -J16-

q

Slot A9

9 -

Vacant

q

Slot A10

10 -	Coolant shortage indicator control unit -J120-

q

Slot A6

AUDI A3 2013 Relay locations on E-box, with RS3

Relay locations on E-box, with RS3

1 -

Vacant

q

Slot A7

2 -	Starter relay 2 -J907-

q

Slot A2

3 -	Starter relay 1 -J906-

q

Slot A1

4 -	Horn relay -J413-

q

Slot A3

5 -

Vacant

q

Slot A4

6 -	Main relay -J271-

q

Slot A5

7 -	Auxiliary coolant pump relay -J496-

q

Slot A8

8 -	Engine component current supply relay -J757-

q

Slot A11

9 -

Vacant

q

Slot A6

AUDI A3 2013 Relay slot assignment under left dash panel

Relay slot assignment under left dash panel

1 -	Reducing agent metering system relay -J963-

q

Slot B1

2 -	Seat belt tensioner relay -J669-

q

Slot B2

q	up to April 2013

3 -

Vacant

q

Slot B3

4 -	Relay for power sockets -J807-

q

Slot B6

5 -	Heated rear window relay -J9-

q

Slot B5

6 -	Terminal 15 voltage supply relay -J329-

q

Slot B4

AUDI A3 2013 Relay slot assignment on additional relay carrier, left-hand drive models

Relay slot assignment on additional relay carrier, left-hand drive models

1 -	Headspace heating relay -J989-

AUDI A3 2013 Relay slot assignment on additional relay carrier, right-hand drive models

Relay slot assignment on additional relay carrier, right-hand drive models

1 -	Headspace heating relay -J989-