AUDI A4 2013 – Body electrical . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2013 - Entry and start authorisation switch - Fuse 6 on fuse holder D

E415	Entry and start authorisation switch
ST2	Fuse carrier 2
SD6	Fuse 6 on fuse holder D
T16g	16-pin connector
T17g	17-pin connector, in right A-pillar coupling station
135	Earth connection 2, in dash panel wiring harness
A209	Connection 1 (LIN bus) in dash panel wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A4 2013 - Control unit in dash panel insert - Radio controlled clock receiver - Radio controlled clock

J285	Control unit in dash panel insert
J489	Radio controlled clock receiver
J533	Data bus diagnostic interface
ST2	Fuse carrier 2
SD4	Fuse 4 on fuse holder D
SD5	Fuse 5 on fuse holder D
T3i	3-pin connector
T17c	17-pin connector, black
T20d	20-pin connector
T32f	32-pin connector
T46s	46-pin connector
Y8	Radio controlled clock
135	Earth connection 2, in dash panel wiring harness
*	see applicable current flow diagram for fuse assignment
*2	see applicable current flow diagram for CAN separating connector

Wiring Diagram AUDI A4 2013 - Control unit in dash panel insert

G	Fuel gauge sender
GX1	Fuel delivery unit
G5	Rev. counter
G6	Fuel system pressurisation pump
G21	Speedometer
G169	Fuel gauge sender 2
J285	Control unit in dash panel insert
J538	Fuel pump control unit
T4s	4-pin connector
T6bl	6-pin connector
T6r	6-pin connector
T17f	17-pin connector, brown
T17g	17-pin connector, black
T32f	32-pin connector
135	Earth connection 2, in dash panel wiring harness
*	see applicable current flow diagram for engine
*2	Only models with all-wheel drive

Wiring Diagram AUDI A4 2013 - Steering column electronics control unit

J527	Steering column electronics control unit
ST1	Fuse carrier 1
ST2	Fuse carrier 2
SD5	Fuse 5 on fuse holder D
SD12	Fuse 12 on fuse holder D
T16f	16-pin connector
T17b	17-pin connector, in left A-pillar coupling station
T17q	17-pin connector, in E-box
T46s	46-pin connector
135	Earth connection 2, in dash panel wiring harness
*	see applicable current flow diagram for fuse assignment
*2	see applicable current flow diagram for engine
*3	Front passenger side push-in bridge, brown
*4	Data bus wire (CAN bus)

Wiring Diagram AUDI A4 2013 - Turn signal switch - Cruise control system switch - Steering column electronics control unit

E2	Turn signal switch
E45	Cruise control system switch
F138	Airbag coil connector and return ring with slip ring
G85	Steering angle sender
H	Horn plate
J234	Airbag control unit
J453	Multifunction steering wheel control unit
J527	Steering column electronics control unit
N95	Driver side airbag igniter
T4ac	4-pin connector
T5b	5-pin connector
T17x	17-pin connector
T100	100-pin connector
135	Earth connection 2, in dash panel wiring harness
*	see applicable current flow diagram for multifunction steering wheel
*2	Up to April 2009
*3	From May 2009
*4	see applicable current flow diagram for airbag

Wiring Diagram AUDI A4 2013 - Intermittent wiper switch - Switch module for driving mode selection - Start/Stop operation button - Steering column electronics control unit - Control unit for electronic steering column lock

E22	Intermittent wiper switch
E592	Switch module for driving mode selection
E693	Start/Stop operation button
J519	Onboard supply control unit
J527	Steering column electronics control unit
J764	Control unit for electronic steering column lock
ST2	Fuse carrier 2
SD9	Fuse 9 on fuse holder D
T6z	6-pin connector
T8aq	8-pin connector
T17c	17-pin connector, black
T17d	17-pin connector, brown
T17f	17-pin connector, brown
T17g	17-pin connector, in right A-pillar coupling station
T32a	32-pin connector
135	Earth connection 2, in dash panel wiring harness
*	see applicable current flow diagram for fuse assignment
*2	Only models with stop/start system

Wiring Diagram AUDI A4 2013 - Bonnet contact switch - Treble horn - Bass horn - Horn relay

F266	Bonnet contact switch
H2	Treble horn
H7	Bass horn
J413	Horn relay
J519	Onboard supply control unit
ST2	Fuse carrier 2
ST3	Fuse carrier 3
SC6	Fuse 6 on fuse holder C
SC7	Fuse 7 on fuse holder C
T2s	2-pin connector
T17l	17-pin connector
T17q	17-pin connector, red
T17r	17-pin connector, in E-box
T32b	32-pin connector
366	Earth connection 1, in main wiring harness
368	Earth connection 3, in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	see applicable current flow diagram for engine
*3	According to equipment

Wiring Diagram AUDI A4 2013 - Rain and light sensor - Wiper motor control unit - Headlight washer system pump

G397	Rain and light sensor
J400	Wiper motor control unit
J519	Onboard supply control unit
ST1	Fuse carrier 1
ST2	Fuse carrier 2
SC9	Fuse 9 on fuse holder C
SC12	Fuse 12 on fuse holder C
T2v	2-pin connector
T3c	3-pin connector
T4g	4-pin connector
T16b	16-pin connector
T17l	17-pin connector
T17m	17-pin connector
T17n	17-pin connector
T32b	32-pin connector
V11	Headlight washer system pump
370	Earth connection 5, in main wiring harness
B475	Connection 11, in main wiring harness
*	Only right-hand drive models
*2	see applicable current flow diagram for fuse assignment
*3	Left-hand drive models
*4	Only models with headlight washer system

Wiring Diagram AUDI A4 2013 - Front left brake pad wear sender - Front right brake pad wear sender - Rear right brake pad wear sender - Left washer jet heater element - Right washer jet heater element

G34	Front left brake pad wear sender
G35	Front right brake pad wear sender
G37	Rear right brake pad wear sender
J519	Onboard supply control unit
T2b	2-pin connector
T2i	2-pin connector
T2r	2-pin connector
T32b	32-pin connector
Z20	Left washer jet heater element
Z21	Right washer jet heater element
370	Earth connection 5, in main wiring harness
B160	Connection (brake system monitor), in interior wiring harness
B268	Connection 1 (brake pad wear indicator), in interior wiring harness
B480	Connection 16, in main wiring harness
B483	Connection 19, in main wiring harness
C14	Positive connection (15), in heated washer jet wiring harness
*	Only models with heater elements for washer jets
*2	Optional equipment
*3	According to equipment
*4	Only models with basic equipment

Wiring Diagram AUDI A4 2013 - Brake fluid level warning contact - Ambient temperature sensor - Coolant shortage indicator sender - Windscreen washer fluid level sender - Rear window wiper motor

F34	Brake fluid level warning contact
G17	Ambient temperature sensor
G32	Coolant shortage indicator sender
G33	Windscreen washer fluid level sender
J519	Onboard supply control unit
T2a	2-pin connector
T2aa	2-pin connector
T2t	2-pin connector
T2u	2-pin connector
T17l	17-pin connector
T32b	32-pin connector
V5	Washer pump
V12	Rear window wiper motor
401	Earth connection (sender earth), in interior wiring harness
B536	Connection 27, in main wiring harness
B538	Connection 29, in main wiring harness
*	According to equipment
*2	Avant
*3	Saloon

Wiring Diagram AUDI A4 2013 - Air quality sensor - Refrigerant pressure and temperature sender - Garage door operation control unit

G238	Air quality sensor
G395	Refrigerant pressure and temperature sender
J519	Onboard supply control unit
J530	Garage door operation control unit
ST1	Fuse carrier 1
SC3	Fuse 3 on fuse holder C
T3f	3-pin connector
T3t	3-pin connector
T4a	4-pin connector
T6k	6-pin connector, green
T6l	6-pin connector, green
T16b	16-pin connector
B549	Connection 2 (LIN bus) in main wiring harness
B627	Positive connection 3 (15), in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	see applicable current flow diagram for seat adjustment
*3	Cross section depends on equipment

Wiring Diagram AUDI A4 2013 - Light switch - Hazard warning lights button

E1	Light switch
E20	Switch and instrument illumination regulator
E229	Hazard warning lights button
E314	Rear fog light button
E315	Fog light button
J234	Airbag control unit
J519	Onboard supply control unit
K6	Indicator lamp for hazard warning light
K145	Front passenger side airbag deactivated warning lamp
ST1	Fuse carrier 1
ST2	Fuse carrier 2
SD7	Fuse 7 on fuse holder D
SC13	Fuse 13 on fuse holder C
T4t	4-pin connector
T6ae	6-pin connector
T17f	17-pin connector, in right A-pillar coupling station
T32a	32-pin connector
T100	100-pin connector
81	Earth connection 1, in dash panel wiring harness
B163	Positive connection 1 (15), in interior wiring harness
*	see applicable current flow diagram for fuse assignment
*2	From May 2009
*3	see applicable current flow diagram for airbag

Wiring Diagram AUDI A4 2013 - Headlight range control regulator - Front left headlight

E102	Headlight range control regulator
J519	Onboard supply control unit
L22	Left fog light bulb
L174	Left daytime running light bulb
M1	Left side light bulb
MX1	Front left headlight
M5	Front left turn signal bulb
M29	Left headlight dipped beam bulb
M30	Left headlight main beam bulb
ST3	Fuse carrier 3
SC8	Fuse 8 on fuse holder C
T10a	10-pin connector
T17b	17-pin connector, in left A-pillar coupling station
T17g	17-pin connector, in right A-pillar coupling station
T17m	17-pin connector
V48	Left headlight range control motor
B165	Positive connection 2 (15), in interior wiring harness
B488	Connection 24, in main wiring harness
C69	Front left connection (fog light),, in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	Only models with no US equipment
*3	Only models with mechanical headlight range control
*4	Only models with US equipment
*5	Only models with daytime running lights

Wiring Diagram AUDI A4 2013 - Front right headlight

J519	Onboard supply control unit
L23	Right fog light bulb
L175	Right daytime running light bulb
MX2	Front right headlight
M3	Right side light bulb
M7	Front right turn signal bulb
M31	Right headlight dipped beam bulb
M32	Right headlight main beam bulb
ST1	Fuse carrier 1
ST3	Fuse carrier 3
SC6	Fuse 6 on fuse holder C
SC10	Fuse 10 on fuse holder C
T10b	10-pin connector
T17m	17-pin connector
T17n	17-pin connector
V49	Right headlight range control motor
B165	Positive connection 2 (15), in interior wiring harness
B488	Connection 24, in main wiring harness
C15	Connection 1, in headlight wiring harness
C25	Connection (fog light), in front lighting wiring harness
*	Only models with no US equipment
*2	see applicable current flow diagram for fuse assignment
*3	Only models with US equipment
*4	Only models with daytime running lights

Wiring Diagram AUDI A4 2013 - Rear left reading light button - Vanity mirror light bulb - Front interior light - Rear right interior light

E317	Interior light switch
E454	Rear left reading light button
E455	Rear right reading light button
E457	Driver side reading light button
E458	Front passenger side reading light button
F147	Driver vanity mirror contact switch
F148	Front passenger vanity mirror contact switch
J519	Onboard supply control unit
L31	Vanity mirror light bulb
T8b	8-pin connector
T17l	17-pin connector
W1	Front interior light
W13	Front passenger reading light
W19	Driver side reading light
W47	Rear left interior light
W48	Rear right interior light
Y7	Automatic anti-dazzle interior mirror
B476	Connection 12, in main wiring harness
*	According to equipment

Wiring Diagram AUDI A4 2013 - Key operated switch to deactivate front passenger side airbag - Valet parking button - Valet parking warning lamp

E224	Key operated switch to deactivate front passenger side airbag
E536	Valet parking button
J234	Airbag control unit
J519	Onboard supply control unit
K159	Valet parking warning lamp
L67	Dash panel left vent illumination bulb
L68	Dash panel central vent illumination
L69	Dash panel right vent illumination bulb
T12k	12-pin connector
T17g	17-pin connector, in right A-pillar coupling station
T32a	32-pin connector
T100	100-pin connector
378	Earth connection 13, in main wiring harness
475	Earth connection (airbag), in main wiring harness
B478	Connection 14, in main wiring harness
*	Only models with key operated switch to deactivate front passenger airbag
*2	see applicable current flow diagram for airbag
*3	According to equipment

Wiring Diagram AUDI A4 2013 - Glove compartment light switch - Front left footwell illumination bulb - Front right footwell illumination bulb - Glove compartment light

E26	Glove compartment light switch
J519	Onboard supply control unit
L151	Front left footwell illumination bulb
L152	Front right footwell illumination bulb
T10m	10-pin connector, Coupling point under front passenger seat
T10p	10-pin connector, near driver seat
T12k	12-pin connector
T17d	17-pin connector, brown
T17l	17-pin connector
T32a	32-pin connector
W6	Glove compartment light
W45	Rear left footwell light
W46	Rear right footwell light
369	Earth connection 4, in main wiring harness
378	Earth connection 13, in main wiring harness
B433	Connection (footwell light), in main wiring harness
B479	Connection 15, in main wiring harness
*	According to equipment

Wiring Diagram AUDI A4 2013 - Electromechanical parking brake button - Potentiometer for rear temperature selection

E538	Electromechanical parking brake button
G538	Potentiometer for rear temperature selection
J519	Onboard supply control unit
T8ad	8-pin connector
T12b	12-pin connector
T16b	16-pin connector
T27a	27-pin connector, lower part of A-pillar, driver side
T32b	32-pin connector
T46i	46-pin connector
369	Earth connection 4, in main wiring harness
B490	Connection 26, in main wiring harness
*	Driver side push-in bridge, brown
*2	see applicable current flow diagram for air conditioning
*3	According to equipment
*4	see applicable current flow diagram for convenience system

Wiring Diagram AUDI A4 2013 - Adaptive cruise control unit

J428	Adaptive cruise control unit
J519	Onboard supply control unit
J533	Data bus diagnostic interface
J769	Lane change assist control unit
ST1	Fuse carrier 1
SC9	Fuse 9 on fuse holder C
T8a	8-pin connector
T12h	12-pin connector
T16v	16-pin connector
T17f	17-pin connector, in right A-pillar coupling station
T20d	20-pin connector
B108	Connection 1 (CAN bus extended high), in main wiring harness
B109	Connection 1 (CAN bus extended low), in main wiring harness
B665	Connection 1 (CAN bus extended high), in dash panel wiring harness
B666	Connection 1 (CAN bus extended low), in dash panel wiring harness
*	Only models with adaptive cruise control (ACC)
*2	From May 2009
*3	Only models with lane departure warning assist
*4	According to equipment

Wiring Diagram AUDI A4 2013 - Rear roller blind switch - Button for TCS and electronic stabilisation program - Parking aid button

E149	Rear roller blind switch
E256	Button for TCS and electronic stabilisation program
E266	Parking aid button
J104	ABS control unit
J519	Onboard supply control unit
T8r	8-pin connector
T16b	16-pin connector
T17c	17-pin connector, in left A-pillar coupling station
T17e	17-pin connector, red
T17g	17-pin connector, in right A-pillar coupling station
T32a	32-pin connector
T38a	38-pin connector
*	Only models with navigation system
*2	Only models with no navigation system
*3	see applicable current flow diagram for ABS

Wiring Diagram AUDI A4 2013 - Entry and start authorisation button

E408	Entry and start authorisation button
J519	Onboard supply control unit
J587	Selector lever sensors control unit
ST2	Fuse carrier 2
SC5	Fuse 5 on fuse holder C
T4n	4-pin connector
T6f	6-pin connector
T6k	6-pin connector, Coupling point under front passenger seat
T6l	6-pin connector, near driver seat
T10k	10-pin connector
T32b	32-pin connector
B472	Connection 8, in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	see applicable current flow diagram for automatic gearbox
*3	see applicable current flow diagram for seat heating

Wiring Diagram AUDI A4 2013 - Entry and start authorisation button - Contact sensor for front left exterior door handle - Contact sensor for front right exterior door handle - Convenience system central control unit - Left aerial for entry and start authorisation

E408	Entry and start authorisation button
G605	Contact sensor for front left exterior door handle
G606	Contact sensor for front right exterior door handle
J393	Convenience system central control unit
R137	Luggage compartment aerial for entry and start system
R138	Interior aerial 1 for entry and start system
R200	Left aerial for entry and start authorisation
T2aj	2-pin connector
T2bo	2-pin connector
T2bp	2-pin connector
T2bv	2-pin connector
T2bw	2-pin connector
T4n	4-pin connector
T17p	17-pin connector
T27a	27-pin connector, in left A-pillar
T27b	27-pin connector, in left A-pillar
T27c	27-pin connector, in right A-pillar
T32d	32-pin connector
T32e	32-pin connector
205	Earth connection, in driver door wiring harness
206	Earth connection, in front passenger door wiring harness
367	Earth connection 2, in main wiring harness

Wiring Diagram AUDI A4 2013 - Convenience system central control unit - Left tail light - Left tail light 2 - Luggage compartment light

J393	Convenience system central control unit
MX3	Left tail light
M4	Left tail light bulb
MX5	Left tail light 2
M6	Rear left turn signal bulb
M16	Left reversing light bulb
M21	Left brake and tail light bulb
M37	Rear left side marker bulb
M41	Left tail light and rear fog light bulb
M56	Left brake and turn signal bulb
M69	Left brake, turn signal and tail light bulb
T2ah	2-pin connector
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
W3	Luggage compartment light
371	Earth connection 6, in main wiring harness
372	Earth connection 7, in main wiring harness
B477	Connection 13, in main wiring harness
*	Saloon
*2	Only models with US equipment
*3	Only models with no US equipment

Wiring Diagram AUDI A4 2013 - Convenience system central control unit - Rear lid central locking motor

F124	Contact switch in lock cylinder for rear lid, anti-theft alarm system and central locking system
F248	Release button for rear lid lock cylinder
J329	Terminal 15 voltage supply relay
J393	Convenience system central control unit
M25	High-level brake light bulb
ST2	Fuse carrier 2
SF8	Fuse 8 in fuse holder F
SF10	Fuse 10 in fuse holder F
SF11	Fuse 11 in fuse holder F
T2g	2-pin connector
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
T32d	32-pin connector
V53	Rear lid central locking motor
X4	Left number plate light
X5	Right number plate light
249	Earth connection 2, in interior wiring harness
372	Earth connection 7, in main wiring harness
690	Earth point, rear centre roof frame
Q22	Connection 1, in rear lid wiring harness
*	Saloon
*2	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A4 2013 - Convenience system central control unit - Right tail light - Right tail light 2

J393	Convenience system central control unit
M2	Right tail light bulb
MX4	Right tail light
MX6	Right tail light 2
M8	Rear right turn signal bulb
M17	Right reversing light bulb
M22	Right brake and tail light bulb
M38	Rear right side marker bulb
M42	Right tail light and rear fog light bulb
M57	Right brake and turn signal bulb
M70	Right brake, turn signal and tail light bulb
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
372	Earth connection 7, in main wiring harness
*	Saloon
*2	Only models with US equipment
*3	Only models with no US equipment

Wiring Diagram AUDI A4 2013 - Sliding sunroof adjustment regulator - Sliding sunroof adjustment control unit - Convenience system central control unit - Sliding sunroof motor

E139	Sliding sunroof adjustment regulator
J245	Sliding sunroof adjustment control unit
J393	Convenience system central control unit
ST3	Fuse carrier 3
SC9	Fuse 9 on fuse holder C
SC11	Fuse 11 on fuse holder C
T6e	6-pin connector, black
T10c	10-pin connector
T10x	10-pin connector
T32c	32-pin connector
V1	Sliding sunroof motor
277	Earth connection 3, in interior wiring harness
B528	Connection 1 (LIN bus) in main wiring harness
*	Avant
*2	see applicable current flow diagram
*3	Saloon
*4	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A4 2013 - Anti-theft alarm sensor - Alarm horn - Convenience system central control unit

G578	Anti-theft alarm sensor
H12	Alarm horn
J393	Convenience system central control unit
R47	Central locking and anti-theft alarm system aerial
R112	Aerial amplifier 3
ST3	Fuse carrier 3
SC12	Fuse 12 on fuse holder C
T1as	Single connector
T1h	Single connector
T3e	3-pin connector
T4f	4-pin connector
T32c	32-pin connector
277	Earth connection 3, in interior wiring harness
377	Earth connection 12, in main wiring harness
B301	Positive connection 5 (30), in main wiring harness
B528	Connection 1 (LIN bus) in main wiring harness
*	Saloon
*2	see applicable current flow diagram for fuse assignment
*3	see applicable current flow diagram
*4	According to equipment
*5	see applicable current flow diagram for MMI (information electronics)

Wiring Diagram AUDI A4 2013 - Clutch pedal switch - Convenience system central control unit

F36	Clutch pedal switch
F194	Clutch pedal switch for engine start
F305	Gear selector position P switch
G476	Clutch position sender
J217	Automatic gearbox control unit
J393	Convenience system central control unit
J623	Engine control unit
T4h	4-pin connector
T6g	6-pin connector
T17q	17-pin connector, in E-box
T17r	17-pin connector, in E-box
T32d	32-pin connector
B471	Connection 7, in main wiring harness
D114	Connection 12 in engine compartment wiring harness
*	see applicable current flow diagram for engine
*2	Only models with manual gearbox
*3	see applicable current flow diagram for automatic gearbox

Wiring Diagram AUDI A4 2013 - Brake light switch - Convenience system central control unit

F	Brake light switch
J255	Climatronic control unit
J393	Convenience system central control unit
J623	Engine control unit
SC2	Fuse 2 on fuse holder C
ST2	Fuse carrier 2
T4k	4-pin connector
T17e	17-pin connector, in left A-pillar coupling station
T17r	17-pin connector, in E-box
T20e	20-pin connector
T32d	32-pin connector
B335	Connection 1 (54), in main wiring harness
*	see applicable current flow diagram for engine
*2	Solenoid coil for brake light sensor
*3	see applicable current flow diagram for air conditioning
*4	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A4 2013 - Convenience system central control unit

J345	Trailer detector control unit
J387	Front passenger door control unit
J393	Convenience system central control unit
J605	Rear lid control unit
J772	Reversing camera system control unit
T8ae	8-pin connector
T10m	10-pin connector, red
T12d	12-pin connector
T12u	12-pin connector, brown
T17f	17-pin connector, in right A-pillar coupling station
T20g	20-pin connector
T27c	27-pin connector, in right A-pillar
T32c	32-pin connector
T46s	46-pin connector
T54b	54-pin connector
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B401	Connection 5 (convenience CAN bus, high), in main wiring harness
*	Only models with reversing camera system
*2	Only models with trailer socket
*3	Avant
*4	see applicable current flow diagram for convenience system
*5	Front passenger side push-in bridge, brown
*6	see applicable current flow diagram for seat adjustment

Wiring Diagram AUDI A4 2013 - Convenience system central control unit

J345	Trailer detector control unit
J387	Front passenger door control unit
J393	Convenience system central control unit
J605	Rear lid control unit
J772	Reversing camera system control unit
T8ae	8-pin connector
T10m	10-pin connector, red
T12d	12-pin connector
T12u	12-pin connector, brown
T17f	17-pin connector, in right A-pillar coupling station
T20g	20-pin connector
T27c	27-pin connector, in right A-pillar
T32c	32-pin connector
T46s	46-pin connector
T54b	54-pin connector
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
B410	Connection 5 (convenience CAN bus, low), in main wiring harness
*	see applicable current flow diagram for convenience system
*2	Front passenger side push-in bridge, brown
*3	Only models with reversing camera system
*4	Only models with trailer socket
*5	Avant
*6	see applicable current flow diagram for seat adjustment

Wiring Diagram AUDI A4 2013 - Convenience system central control unit - Rear roller blind motor - Tank filler flap locking motor - Heated rear window

C18	Window aerial suppression filter
J9	Heated rear window relay
J393	Convenience system central control unit
J807	Relay for power sockets
R178	Frequency modulation (FM) frequency filter in negative wire
R179	Frequency modulation (FM) frequency filter in positive wire
ST5	Fuse carrier 5
SF7	Fuse 7 in fuse holder F
S41	Heated rear window single fuse
T2k	2-pin connector
T17o	17-pin connector
T17p	17-pin connector
T32c	32-pin connector
T32d	32-pin connector
V91	Rear roller blind motor
V155	Tank filler flap locking motor
Z1	Heated rear window
657	Earth point 1, on left near rear window
*	Saloon
*2	Only vehicles with electric rear roller blind
*3	see applicable current flow diagram for fuse assignment
*4	Avant

Wiring Diagram AUDI A4 2013 - Cigarette lighter - 12 V socket - 12 V socket 2 - 12 V socket 3

J807	Relay for power sockets
L28	Cigarette lighter illumination bulb
L42	Socket illumination bulb
R126	Telephone bracket
ST3	Fuse carrier 3
SF5	Fuse 5 in fuse holder F
T3g	3-pin connector
T3l	3-pin connector
T3n	3-pin connector
T3p	3-pin connector
U1	Cigarette lighter
U5	12 V socket, in front centre console
U13	DC/AC converter with socket, 12 V - 230 V
U18	12 V socket 2
U19	12 V socket 3
B282	Positive connection 6 (15a) in main wiring harness
B473	Connection 9, in main wiring harness
*	According to equipment
*2	Only models with 12 V socket in luggage compartment
*3	see applicable current flow diagram for telephone systems
*4	see applicable current flow diagram for seat heating
*5	see applicable current flow diagram for fuse assignment

AUDI A4 2013 Overview of fuses

Overview of fuses

Overview also valid for Avant models (5-door)!

   

Fuse holder A -SA-

q	Fitting location:

1 -	Battery isolation relay fuse -S171-

q	Fitting location next to second battery

q	Fitting location for models with right-hand drive, up to and including model year 2009:

q	Fitting location for models with left-hand drive, from model year 2010:

q	Fitting location for models with right-hand drive, from model year 2010:

q	Fitting location for models with left-hand drive, from November 2011:

q	Fitting location for models with right-hand drive, from November 2011:

q	Fitting location for models with right-hand drive:

6-pin coupling station of A-pillar, driver side

q	Fitting location for models with left-hand drive:

q	Fitting location for models with right-hand drive:

3-pin relay and fuse holder

q	Fitting location for models with left-hand drive:

q	Fitting location for models with right-hand drive:

Relay/fuse holder B -SB-

q	Fitting location for models with left-hand drive, up to October 2011:

q	Fitting location for models with right-hand drive, up to October 2011:

q	Fitting location for models with left-hand drive, from November 2011:

q	Fitting location for models with right-hand drive, from November 2011:

Terminal 30 wiring junction 2 -TV22- with jump start socket -U6-

q	Fitting location up to October 2011:

q	Fitting location from November 2011:

6-pin coupling station of A-pillar, front passenger side

q	Fitting location for models with left-hand drive:

q	Fitting location for models with right-hand drive:

q	Fitting location for models with right-hand drive:

Relay/fuse holder F -SF-

q	Fitting location up to and including model year 2009:

q	Fitting location from model year 2010:

q	Fitting location from November 2011:

AUDI A4 2013 Fuse holder A SA Fuse holder A -SA- Fitting location: on battery positive pole, in luggage compartment

A -	Battery isolation igniter -N253-

1 -	Fuse 1 on fuse holder A -SA1-,

2 -	Fuse 2 on fuse holder A -SA2-,

3 -	Fuse 3 on fuse holder A -SA3-,

for models with left-hand drive only 2)  30 3 - Fuse 3 on fuse holder A -SA3- 40 A 50 A 110 A 80 A - Driving school option Rental car option Public authority option Fuse 1 for ABS control unit -S123- Fuse 2 for ABS control unit -S124- Fuse 3 for ABS control unit -S137- 30 AUDI A4 2013 Relay/ fuse​ holder​ B SB up to October 2011 Relay/fuse​ holder​ B -SB- up to October 2011 Location, relay/fuse holder B -SB- for models with left-hand drive, up to October 2011: In electronics box in plenum chamber, driver side 3)  for models with 6-cylinder diesel engine only 5)  .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car K -  Engine glow plug strip fuse -S39-, 60 A K -  Engine glow plug strip fuse -S39-, 80 A K -  Secondary​ air​ pump​ fuse -S130-, 50 A L -  NOx​ sender​ fuse​ -S360-, 5 A ST1 -  Fuse carrier 1, fuses for models with 4-cylinder diesel engine only 7)  for models with 6-cylinder petrol engine only   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car K -  Engine glow plug strip fuse -S39-, 60 A K -  Engine glow plug strip fuse -S39-, 80 A K -  Secondary​ air​ pump​ fuse -S130-, 50 A L -  NOx​ sender​ fuse​ -S360-, 5 A ST1 -  Fuse carrier 1, fuses for models with 4-cylinder petrol engine (1.8 l TFSI) only 10)  for models with 6-cylinder petrol engine (3.2 l FSI) only 12)  for models with 4-cylinder diesel engine (2.0 l TDI) only 14)  for models with 4-cylinder diesel engine (2.0 l TDI - gen. 2) 16)  15 A 15 A 15 A 15 A 15 A 15 A 20 A - Air mass meter -G70- Automatic glow period control unit -J179- Secondary air pump relay -J299- Throttle valve control unit -J338- Low heat output relay -J359- High heat output relay -J360- Charge pressure control solenoid valve -N75- Crankcase breather heater element -N79- Activated charcoal filter solenoid valve 1 -N80- Secondary air injection valve -N112- Left electrohydraulic engine mounting solenoid valve -N144- Right electrohydraulic engine mounting solenoid valve -N145- Variable intake manifold changeover valve -N156- Air filter bypass flap valve -N275- Fuel pressure regulating valve -N276- Fuel metering valve -N290- Secondary air injection valve 2 -N320- Exhaust gas recirculation cooler changeover valve -N345- Oil pressure control valve -N428- Fuel system diagnostic pump -V144- 87 6   Fuse 6 on fuse holder B -SB6- 15 A - Engine control unit -J623- 87 7   Fuse 7 on fuse holder B -SB7- 10 A 10 A 10 A 10 A 10 A 10 A 15 A 15 A - Actuator 1 for camshaft adjustment -F366- t  up to Actuator 8 for camshaft adjustment -F373- Actuator 9 for camshaft adjustment -F374- t  up to Actuator 12 for camshaft adjustment -F377- Continued coolant circulation relay -J151- Additional​ coolant​ pump​ relay -J496- Charge pressure control solenoid valve -N75- Activated charcoal filter solenoid valve 1 -N80- Left electrohydraulic engine mounting solenoid valve -N144- Right electrohydraulic engine mounting solenoid valve -N145- Camshaft control valve 1 -N205- Camshaft control valve 2 -N208- Turbocharger air recirculation valve -N249- Fuel pressure regulating valve -N276- Fuel metering valve -N290- Intake manifold flap valve -N316- Exhaust camshaft control valve 1 -N318- Exhaust camshaft control valve 2 -N319- Climatronic coolant shut-off valve -N422- Oil pressure control valve -N428- Fuel system diagnostic pump -V144- Charge air cooling pump -V188- 87 8   Fuse 8 on fuse holder B -SB8- 5 A 10 A 10 A 10 A 20 A 20 A 20 A 20 A - Exhaust gas recirculation cooler pump -V400- Ignition coil 1 with output stage -N70- Ignition coil 2 with output stage -N127- Ignition coil 3 with output stage -N291- Ignition coil 4 with output stage -N292- Ignition coil 5 with output stage -N323- Ignition coil 6 with output stage -N324- 87 9   Fuse 9 on fuse holder B -SB9- 5 A 15 A 15 A 20 A 20 A 20 A - Supplementary fuel pump relay -J832- Lambda probe 1 heater after catalytic converter -Z29- Lambda probe 2 heater after catalytic converter -Z30- 87 10   Fuse 10 on fuse holder B -SB10- 10 A 15 A 15 A 15 A 15 A 15 A 15 A - Lambda probe heater -Z19- Lambda probe heater 2 -Z28- Lambda probe 1 heater after catalytic converter -Z29- 87 11   Fuse 11 on fuse holder B -SB11- 5 A - Radiator fan control unit -J293- Radiator fan control unit 2 -J671- 87 12 - Fuse 12 on fuse holder B -SB12- 5 A - Air mass meter -G70- Automatic gearbox control unit -J217- Mechatronic unit for dual clutch gearbox -J743- 15 AUDI A4 2013 Relay/ fuse holder B SB from November 2011 Relay/fuse holder B -SB- from November 2011 for models with 4-cylinder diesel engine only 18)  for models with 6-cylinder petrol engine only   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car K -  Engine glow plug strip fuse -S39-, 60 A K -  Engine glow plug strip fuse -S39-, 80 A K -  Secondary​ air​ pump​ fuse -S130-, 50 A ST1 -  Fuse carrier 1, fuses for models with 4-cylinder diesel engine only 21)  for models with 6-cylinder petrol engine only 23)  .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car K -  Engine glow plug strip fuse -S39-, 60 A K -  Engine glow plug strip fuse -S39-, 80 A K -  Secondary​ air​ pump​ fuse -S130-, 50 A L -  Secondary​ air​ pump​ fuse 2 -S284-, 50 A ST1 -  Fuse carrier 1, fuses for models with 4-cylinder petrol engine (1.8 l TFSI gen. 2) 25)  for models with 4-cylinder petrol engine (2.0 l TFSI) only 27)  for models with 4-cylinder diesel engine (2.0 l TDI) only 29)  for models with 6-cylinder diesel engine (3.0 l TDI BIN 5) only 31)  for models with 8-cylinder petrol engine only (for RS 4 only) 33)  5 A 7.5 A 10 A 10 A 10 A - Air mass meter -G70- Fuel pressure regulating valve -N276- Fuel metering valve -N290- Magnetic clutch for supercharger -N421- 87 6   Fuse 6 on fuse holder B -SB6- 15 A - Engine control unit -J623- Injector 2, cylinder 1 -N532- Injector 2, cylinder 2 -N533- Injector 2, cylinder 3 -N534- Injector 2, cylinder 4 -N535- Activated charcoal filter solenoid valve 1 -N80- Secondary air inlet valve -N112- Oil pressure control valve -N428- Actuator for engine temperature regulation -N493- Engine oil cooler valve -N554- Charge pressure positioner 2 -V546- 87 7   Fuse 7 on fuse holder B -SB7- 10 A 10 A 10 A 10 A - Actuator 1 for camshaft adjustment -F366- Actuator 2 for camshaft adjustment -F367- Actuator 3 for camshaft adjustment -F368- Actuator 4 for camshaft adjustment -F369- Actuator 5 for camshaft adjustment -F370- Actuator 6 for camshaft adjustment -F371- Actuator 7 for camshaft adjustment -F372- Actuator 8 for camshaft adjustment -F373- Charge pressure control solenoid valve -N75- Activated charcoal filter solenoid valve 1 -N80- Left electrohydraulic engine mounting solenoid valve -N144- Right electrohydraulic engine mounting solenoid valve -N145- Camshaft control valve 1 -N205- Camshaft control valve 2 -N208- Exhaust flap valve -N220- Turbocharger air recirculation valve -N249- Fuel pressure regulating valve -N276- Fuel metering valve -N290- Intake manifold flap valve -N316- Exhaust camshaft control valve 1 -N318- Exhaust camshaft control valve 2 -N319- Climatronic coolant shut-off valve -N422- Oil pressure control valve -N428- Coolant valve for gearbox -N488- Piston cooling jet control valve -N522- Continued coolant circulation pump -V51- Pump for exhaust gas recirculation cooler -V400- 87 8   Fuse 8 on fuse holder B -SB8- 5 A 5 A 7.5 A 10 A 15 A - NOx sender 2 -G687- Control unit for NOx sender 2 -J881- Brake servo relay -J569- NOx sender -G295- Particulate sensor -G784- Control unit for NOx sender -J583- Left electrohydraulic engine mounting solenoid valve -N144- Right electrohydraulic engine mounting solenoid valve -N145- Secondary air pump relay -J299- Charge air cooling pump -V188- 87 9   Fuse 9 on fuse holder B -SB9- 5 A - Voltage stabiliser -J532- Engine control unit -J623- 87 10   Fuse 10 on fuse holder B -SB10- 5 A 10 A 10 A 15 A 15 A 15 A 15 A - Lambda probe heater -Z19- Lambda probe heater 2 -Z28- Lambda probe 1 heater after catalytic converter -Z29- Power steering control unit -J500- 87 11   Fuse 11 on fuse holder B -SB11- 5 A - Radiator fan control unit -J293- Radiator fan control unit 2 -J671- 87 12   Fuse 12 on fuse holder B -SB12- 5 A - Automatic gearbox control unit -J217- Mechatronic unit for dual clutch gearbox -J743- 87 13   Fuse 13 on fuse holder B -SB13- 15 A - - only for : Injector 2, cylinder 1 -N532- Injector 2, cylinder 2 -N533- Injector 2, cylinder 3 -N534- Injector 2, cylinder 4 -N535- Injector 2,cylinder 5 -N536- Injector 2, cylinder 6 -N537-   14   Fuse 14 on fuse holder B -SB14- 5 A 20 A 20 A 20 A 20 A 20 A 30A - Engine component current supply relay 2 -J976- Ignition coil 1 with output stage -N70- Ignition coil 2 with output stage -N127- Ignition coil 3 with output stage -N291- Ignition coil 4 with output stage -N292- Ignition coil 5 with output stage -N323- Ignition coil 6 with output stage -N324- Ignition coil 7 with output stage -N325- Ignition coil 8 with output stage -N326- Climatronic coolant shut-off valve -N422- Pump for exhaust gas recirculation cooler -V400- 87 15   Fuse 15 on fuse holder B -SB15- 5 A 20 A - Power steering control unit -J500- , not for Lambda probe heater -Z19-, only for Lambda probe heater 2 -Z28-, only for 87 16   Fuse 16 on fuse holder B -SB16- 15 A 25 A - Map-controlled engine cooling system thermostat -F265- Automatic glow period control unit -J179- Secondary air pump relay -J299- Low heat output relay -J359- High heat output relay -J360- Additional coolant pump relay -J496- Secondary air pump 2 relay -J545- Gearbox cooling circuit relay -J696- Charge pressure control solenoid valve -N75- Heater element for crankcase breather -N79- Activated charcoal filter solenoid valve 1 -N80- Secondary air inlet valve -N112- Left electrohydraulic engine mounting solenoid valve -N144- Right electrohydraulic engine mounting solenoid valve -N145- Air filter bypass flap valve -N275- Intake manifold flap valve -N316- Secondary air inlet valve 2 -N320- Exhaust gas recirculation cooler changeover valve -N345- Oil pressure control valve -N428- Coolant valve for gearbox -N488- Coolant valve for cylinder head -N489- Actuator for engine temperature regulation -N493- Coolant circulation pump -V50- Charge air cooling pump -V188- Crankcase breather valve -V546- Engine control unit -J623- 87 17   Fuse 17 on fuse holder B -SB17- 15 A 20 A - Lambda probe 1 heater after catalytic converter -Z29- Lambda probe 2 heater after catalytic converter -Z30- 87 AUDI A4 2013 Fuse holder C SC up to model year 2009 Fuse holder C -SC- up to model year 2009 Location fuse holder C -SC- up to model year 2009 for models with left-hand drive: Below the dash panel cover, driver side   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses Fuses in fuse carrier ST2 on fuse holder C -SC- (brown) 34)  Only models with diesel engine     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder C -SC1- 5 A - Circulation pump relay -J160- 87 2 - Fuse 2 on fuse holder C -SC2- 5 A - Clutch pedal switch -F36- Clutch pedal switch for engine start -F194- Clutch position sender -G476- 87 3 - Fuse 3 on fuse holder C -SC3- 20 A 25 A - Fuel system pressurisation pump -G6- Fuel pump control unit -J538- 87 4 - Fuse 4 on fuse holder C -SC4- 5 A - Circulation pump relay -J160- 15 5 - Fuse 5 on fuse holder C -SC5- 30 A - Onboard supply control unit -J519- 30 6 - Fuse 6 on fuse holder C -SC6- 10 A - ABS control unit -J104- 30 7 - Fuse 7 on fuse holder C -SC7- 25 A - Horn relay -J413- 30 8 - Fuse 8 on fuse holder C -SC8- 30 A - Driver door control unit -J386- Rear left door control unit -J388- 30 9 - Fuse 9 on fuse holder C -SC9- 30 A - Wiper motor control unit -J400- 30 10 - Fuse 10 on fuse holder C -SC10- 25 A - ABS control unit -J104-4 30 11 - Fuse 11 on fuse holder C -SC11- 15 A - Driver door control unit -J386- Rear left door control unit -J388- 30 12 - Fuse 12 on fuse holder C -SC12- 5 A - Rain and light sensor -G397- 30 AUDI A4 2013 Fuse holder C SC from model year 2010 Fuse holder C -SC- from model year 2010 .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses Fuses in fuse carrier ST2 on fuse holder C -SC- (brown) 36)  for models with diesel engine (without J538) only 38)  for models with left-hand drive only 40)  for models with seat ventilation only     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder C -SC1- 5 A - Automatic anti-dazzle interior mirror -Y7- 15 2 - Fuse 2 on fuse holder C -SC2- 5 A - Clutch position sender -G476- 87 3 - Fuse 3 on fuse holder C -SC3- 20 A 25 A 25 A - Fuel system pressurisation pump -G6- Fuel pump control unit -J538- 87 4 - Fuse 4 on fuse holder C -SC4- 10 A - Circulation pump relay -J160- Pump for reducing agent -V437- 15 5 - Fuse 5 on fuse holder C -SC5- 15 A 30 A - Onboard supply control unit -J519- 30 6 - Fuse 6 on fuse holder C -SC6- 10 A - ABS control unit -J104- 30 7 - Fuse 7 on fuse holder C -SC7- 25 A - Horn relay -J413- 30 8 - Fuse 8 on fuse holder C -SC8- 30 A - Left doors 30 9 - Fuse 9 on fuse holder C -SC9- 30 A - Wiper motor control unit -J400- 30 10 - Fuse 10 on fuse holder C -SC10- 25 A - ABS control unit -J104- 30 11 - Fuse 11 on fuse holder C -SC11- 15 A - Left doors 30 12 - Fuse 12 on fuse holder C -SC12- 5 A - Rain and light sensor -G397- 30 AUDI A4 2013 Fuse holder C SC from November 2011 Fuse holder C -SC- from November 2011 .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, fuses ST2 -  Fuse carrier 2, fuses ST3 -  Fuse carrier 3, fuses Fuses in fuse carrier ST2 on fuse holder C -SC- (brown) 42)  for models with seat ventilation only     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder C -SC1- - Not assigned 2 - Fuse 2 on fuse holder C -SC2- 5 A - Brake light switch -F- 87 3 - Fuse 3 on fuse holder C -SC3- 25 A - Fuel pump control unit -J538- 87 4 - Fuse 4 on fuse holder C -SC4- 5 A - Clutch position sender -G476- Pressure sender for reducing agent metering system -G686- Control unit for reducing agent metering system -J880- Pump for reducing agent -V437- Heater for reducing-agent pump -Z103- 87 5 - Fuse 5 on fuse holder C -SC5- 15 A 30 A - Onboard supply control unit -J519- Control unit for front left seat ventilation -J800- 30 6 - Fuse 6 on fuse holder C -SC6- 5 A - ABS control unit -J104- 30 7 - Fuse 7 on fuse holder C -SC7- 15 A - Treble horn -H2- Bass horn -H7- Horn relay -J413- 30 8 - Fuse 8 on fuse holder C -SC8- 30 A - Front left door 30 9 - Fuse 9 on fuse holder C -SC9- 30 A - Wiper motor control unit -J400- 30 10 - Fuse 10 on fuse holder C -SC10- 25 A - ABS control unit -J104- 30 11 - Fuse 11 on fuse holder C -SC11- 30 A - Rear left door 30 12 - Fuse 12 on fuse holder C -SC12- 5 A - Rain and light sensor -G397- 30 AUDI A4 2013 Fuse holder D SD Fuse holder D -SD- Location fuse holder D -SD- for models with left-hand drive: Below the dash panel cover, front passenger side   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

ST1 -

Fuse carrier 1, fuses

ST2 -

Fuse carrier 2, fuses

A -	46-pin connector, black, CAN disconnector, dash panel -T46s-

.

ST1 -

Fuse carrier 1, fuses

ST2 -

Fuse carrier 2, fuses

A -	46-pin connector, black, CAN disconnector, dash panel -T46s-

applicable up to October 2011

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder D -SD1-		-	Not assigned
2	-	Fuse 2 on fuse holder D -SD2-		-	Not assigned
3	-	Fuse 3 on fuse holder D -SD3-		-	Not assigned
4	-	Fuse 4 on fuse holder D -SD4-		-	Not assigned
5	-	Fuse 5 on fuse holder D -SD5-	5 A	-	Steering column electronics control unit -J527-	15
6	-	Fuse 6 on fuse holder D -SD6-	5 A	-	TCS and ESP button -E256- Parking aid button -E266-	15
7	-	Fuse 7 on fuse holder D -SD7-	5 A	-	16-pin connector -T16-, diagnostic connector	15
8	-	Fuse 8 on fuse holder D -SD8-	5 A	-	Data bus diagnostic interface -J533-	15
9	-	Fuse 9 on fuse holder D -SD9-	5 A	-	High heat output relay -J360-	15
10	-	Fuse 10 on fuse holder D -SD10-		-	Not assigned
11	-	Fuse 11 on fuse holder D -SD11-		-	Not assigned
12	-	Fuse 12 on fuse holder D -SD12-		-	Not assigned

for models with radio (CAN) with external amplifier only 46)  for models with radio chorus and sound system Basic (from November 2009) only 48)  applicable up to October 2011

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	Fuse 1 on fuse holder D -SD1-	5 A	-	CD changer -R41- DVD changer -R161- Connection for external audio sources -R199-	30
2	-	Fuse 2 on fuse holder D -SD2-	5 A	-	Switch module for driving mode selection -E592-	30
3	-	Fuse 3 on fuse holder D -SD3-	5 A 5 A 20 A 20 A	-	Display unit for front information display and operating unit control unit -J685- Control unit 1 for information electronics -J794- Radio -R-	30
4	-	Fuse 4 on fuse holder D -SD4-	5 A	-	Control unit in dash panel insert -J285-	30
5	-	Fuse 5 on fuse holder D -SD5-	5 A	-	Data bus diagnostic interface -J533-	30
6	-	Fuse 6 on fuse holder D -SD6-	5 A	-	Entry and start authorisation switch -E415-	30
7	-	Fuse 7 on fuse holder D -SD7-	5A	-	Light switch -E1-
8	-	Fuse 8 on fuse holder D -SD8-	40 A	-	Fresh air blower control unit -J126-	30
9	-	Fuse 9 on fuse holder D -SD9-	5 A	-	Control unit for electronic steering column lock -J764-	30
10	-	Fuse 10 on fuse holder D -SD10-	10 A	-	Climatronic control unit -J255-	30
11	-	Fuse 11 on fuse holder D -SD11-	10 A	-	16-pin connector -T16-, diagnostic connector	30
12	-	Fuse 12 on fuse holder D -SD12-	5 A	-	Steering column electronics control unit -J527-	30

AUDI A4 2013 Relay/ fuse holder F SF up to model year 2009 Relay/fuse holder F -SF- up to model year 2009 Location, relay/fuse holder F -SF- up to model year 2009: in luggage compartment, behind side trim on right

ST1 -

Fuse carrier 1, fuses

ST2 -

Fuse carrier 2, fuses

ST3 -

Fuse carrier 3, fuses

ST4 -

Fuse carrier 4, fuses

ST5 -

Fuse carrier 5, fuses

H -	Heated rear window single fuse -S41-

Fuses in fuse carrier ST2 on fuse holder F -SF- (black) No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder F -SF1- 5 A - Tyre pressure monitor control unit -J502- 30 2 - Fuse 2 on fuse holder F -SF2- 15 A - Trailer detector control unit -J345- 30 3 - Fuse 3 on fuse holder F -SF3- 20 A - Trailer detector control unit -J345- 30 4 - Fuse 4 on fuse holder F -SF4- 20 A - Trailer detector control unit -J345- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A - Electromechanical parking brake button -E538- 30 6 - Fuse 6 on fuse holder F -SF6- 15 A - Electronically controlled damping control unit -J250- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Control unit for electromechanical parking brake -J540- 30 8 - Fuse 8 on fuse holder F -SF8- 30 A - Convenience system central control unit -J393- 30 9 - Fuse 9 on fuse holder F -SF9- 35 A - All-wheel drive control unit -J492- 30 10 - Fuse 10 on fuse holder F -SF10- 30 A - Convenience system central control unit -J393- 30 11 - Fuse 11 on fuse holder F -SF11- 20 A - Convenience system central control unit -J393- 30 12 - Fuse 12 on fuse holder F -SF12- 5 A - Interface control unit for vehicle location system -J843- 30 no longer fitted, phased-in modification 51)  30 A - DC/AC converter with socket, 12 V-230 V -U13- 30 2 - Fuse 2 on fuse holder F -SF2- 15 A - Front right seat ventilation control unit -J799- 30 3 - Fuse 3 on fuse holder F -SF3- 7.5 A - Navigation system with CD drive control unit -J401- Radio -R- Telephone transmitter and receiver unit -R36- TV tuner -R78- Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- Satellite radio -R146- Digital radio -R147- 18-pin connector, black -T18a- 30 4 - Fuse 4 on fuse holder F -SF4- 30 A - Digital sound package control unit -J525- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A - Control unit for front display and information control panel -J523- 30 6 - Fuse 6 on fuse holder F -SF6- 30 A - Auxiliary heater control unit -J364- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Control unit for electromechanical parking brake -J540- 30 8 - Fuse 8 on fuse holder F -SF8- 30 A - Heated rear left seat switch with regulator -E128- Heated rear right seat switch with regulator -E129- 30 9 - Fuse 9 on fuse holder F -SF9- 30 A - Front passenger door control unit -J387- Rear right door control unit -J389- 30 10 - Fuse 10 on fuse holder F -SF10- 5 A - Remote control receiver for auxiliary heater -R64- 30 11 - Fuse 11 on fuse holder F -SF11- 15 A - Front passenger door control unit -J387- Rear right door control unit -J389- 30 12 - Fuse 12 on fuse holder F -SF12- 5 A - Reversing camera system control unit -J772- 30 Fuses in fuse carrier ST5 on fuse holder F -SF- (black) 52)  for civil models (F4J, F4Z) only 54)  for vehicles with preparation for disabled persons (F6M) only 56)  15 A 15 A 15 A 25 A - Special vehicle control unit -J608- Special vehicle control unit -J608- Signal system control unit -J616- 30 4 - Fuse 4 on fuse holder F -SF4- 15 A 15 A 10 A - Signal system control unit -J616- Two-way radio -R8- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A 5 A 15 A - Chip card reader -D8- Operating unit for special signals -E507- Signal system control unit -J616- 30 6   Fuse 6 on fuse holder F -SF6- 10 A - Chip card reader -D8- Operating unit for special signals -E507- Taximeter -G41- Taxi alarm remote control, control unit -J601- Special vehicle control unit -J608- Signal system control unit -J616- 15 7   Fuse 7 on fuse holder F -SF7- 5 A 20 A 20 A - Taxi alarm remote control, control unit -J601- Special vehicle control unit -J608- 30 8   Fuse 8 on fuse holder F -SF8- 10 A - Tachograph control unit -J621- Data transmission control unit -J753- Accident data memory 30 9   Fuse 9 on fuse holder F -SF9- 10 A - 12 V socket 4 -U20- 30 10   Fuse 10 on fuse holder F -SF10- 10 A - Battery regulation control unit -J84- 30 11   Fuse 11 on fuse holder F -SF11- 10 A - Battery regulation control unit -J84- 30 12 - Fuse 12 on fuse holder F -SF12-   - Not assigned AUDI A4 2013 Relay/ fuse holder F SF from model year 2010 Relay/fuse holder F -SF- from model year 2010 Location, relay/fuse holder F -SF- from model year 2010: in luggage compartment, behind side trim on right     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, ST2 -  Fuse carrier 2, ST3 -  Fuse carrier 3, ST4 -  Fuse carrier 4, ST5 -  Fuse carrier 5, H -  Heated rear window single fuse -S41- for civil vehicles: NEF - version (F4Z) only 58)  25 A - Signal system control unit -J616- 30 4 - Fuse 4 on fuse holder F -SF4- 15 A - Signal system control unit -J616- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A 15 A - Operating unit for special signals -E507- Signal system control unit -J616- 30 6 - Fuse 6 on fuse holder F -SF6- 3 A - Operating unit for special signals -E507- Signal system control unit -J616- Tachograph control unit -J621- 3-pin connector -T3d- Crash data recorder 15 7 - Fuse 7 on fuse holder F -SF7- 20 A - Special vehicle control unit -J608- 30 8 - Fuse 8 on fuse holder F -SF8- 10 A - Crash data recorder 30 9 - Fuse 9 on fuse holder F -SF9- 10 A - 12 V socket 4 -U20- 30 10 - Fuse 10 on fuse holder F -SF10- 10 A - Battery regulation control unit -J84- 30 11 - Fuse 11 on fuse holder F -SF11- 10 A - Battery regulation control unit -J84- 30 12 - Fuse 12 on fuse holder F -SF12-   - Not assigned Fuses in fuse carrier ST3 on fuse holder F -SF- (brown) No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder F -SF1- 30 A - Rear lid control unit -J605- 30 2 - Fuse 2 on fuse holder F -SF2- 15 A - Front right seat ventilation control unit -J799- 30 3 - Fuse 3 on fuse holder F -SF3- 40 A - Radio -R- Telephone transmitter and receiver unit -R36- TV tuner -R78- Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- 18-pin connector, black -T18a- 30 4 - Fuse 4 on fuse holder F -SF4- 40 A - Voltage stabiliser -J532- 30 5 - Fuse 5 on fuse holder F -SF5- 30 A - DC/AC converter with socket, 12 V-230 V -U13- 30 6 - Fuse 6 on fuse holder F -SF6- 30 A - Auxiliary heater control unit -J364- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Control unit for electromechanical parking brake -J540- 30 8 - Fuse 8 on fuse holder F -SF8- 30 A - Heated rear left seat switch with regulator -E128- Heated rear right seat switch with regulator -E129- 30 9 - Fuse 9 on fuse holder F -SF9- 30 A - Right doors 30 10 - Fuse 10 on fuse holder F -SF10- 5 A - Remote control receiver for auxiliary heater -R64- 30 11 - Fuse 11 on fuse holder F -SF11- 15 A - Right doors 30 12 - Fuse 12 on fuse holder F -SF12- 30 A - Control unit for reducing agent metering system -J880- 30 Fuses in fuse carrier ST5 on fuse holder F -SF- (black) 59)  applicable up to April 2010 61)  30 A - Digital sound package control unit -J525- Radio -R- 30 4 - Fuse 4 on fuse holder F -SF4- 7.5 A - Control unit 1 for information electronics -J794- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A 7.5 A - Navigation system with CD drive control unit -J401- Radio -R- Telephone transmitter and receiver unit -R36- TV tuner -R78- Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- 18-pin connector, black -T18a- 30 6 - Fuse 6 on fuse holder F -SF6- 5 A - Reversing camera system control unit -J772- 30 7 - Fuse 7 on fuse holder F -SF7- 5 A - Aerial amplifier for mobile telephone -R86- 30 8 - Fuse 8 on fuse holder F -SF8-   - Not assigned   9 - Fuse 9 on fuse holder F -SF9-   - Not assigned   10 - Fuse 10 on fuse holder F -SF10-   - Not assigned   11 - Fuse 11 on fuse holder F -SF11-   - Not assigned 12 - Fuse 12 on fuse holder F -SF12-   - Not assigned AUDI A4 2013 Relay/ fuse holder F SF from November 2011 Relay/fuse holder F -SF- from November 2011 Location, relay/fuse holder F -SF- from November 2011: in luggage compartment, behind side trim on right 62)  only for saloon models (4-door)     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car ST1 -  Fuse carrier 1, ST2 -  Fuse carrier 2, ST3 -  Fuse carrier 3, ST4 -  Fuse carrier 4, ST5 -  Fuse carrier 5, H -  Heated rear window single fuse -S41- for civil vehicles: NEF - version (F4Z) only 64)  25 A - Signal system control unit -J616- 30 4 - Fuse 4 on fuse holder F -SF4- 15 A - Signal system control unit -J616- Driving school mode relay -J746- (from October 2012) 30 5 - Fuse 5 on fuse holder F -SF5- 5 A 15 A - Operating unit for special signals -E507- Signal system control unit -J616- 30 6 - Fuse 6 on fuse holder F -SF6- 3 A - Operating unit for special signals -E507- Signal system control unit -J616- Tachograph control unit -J621- 3-pin connector -T3d- Crash data recorder -J754- 15 7 - Fuse 7 on fuse holder F -SF7- 20 A - Special vehicle control unit -J608- 30 8 - Fuse 8 on fuse holder F -SF8- 10 A - Accident data memory -J754- 30 9 - Fuse 9 on fuse holder F -SF9- 10 A - 12 V socket 4 -U20- 30 10 - Fuse 10 on fuse holder F -SF10- 10 A - Battery regulation control unit -J84- 30 11 - Fuse 11 on fuse holder F -SF11- 10 A - Battery regulation control unit -J84- 30 12 - Fuse 12 on fuse holder F -SF12-   - Not assigned only for Avant models (5-door)     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder F -SF1- 30 A - Rear lid control unit 2 -J756- 30 2 - Fuse 2 on fuse holder F -SF2- 15 A - Trailer detector control unit -J345- 30 3 - Fuse 3 on fuse holder F -SF3- 20 A - Trailer detector control unit -J345- 30 4 - Fuse 4 on fuse holder F -SF4- 20 A - Trailer detector control unit -J345- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A - Electromechanical parking brake button -E538- 30 6 - Fuse 6 on fuse holder F -SF6- 15 A - Electronically controlled damping control unit -J250- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Control unit for electromechanical parking brake -J540- 30 8 - Fuse 8 on fuse holder F -SF8- 30 A - Convenience system central control unit -J393- 30 9 - Fuse 9 on fuse holder F -SF9- 35 A - All-wheel drive control unit -J492- 30 10 - Fuse 10 on fuse holder F -SF10- 30 A - Convenience system central control unit -J393- 30 11 - Fuse 11 on fuse holder F -SF11- 20 A - Convenience system central control unit -J393- 30 12 - Fuse 12 on fuse holder F -SF12- 5 A - Interface control unit for vehicle location system -J843- Control unit for fuel tank leak detection -J909- 30 only for Avant models (5-door)     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder F -SF1- 30 A - Rear lid control unit -J605- 30 2 - Fuse 2 on fuse holder F -SF2- 20 A - Relay for power sockets -J807- Cigarette lighter -U1- 12 V socket -U5- DC/AC converter with socket, 12 V-230 V -U13- 12 V socket 2 -U18- 12 V socket 3 -U19- 30 3 - Fuse 3 on fuse holder F -SF3- 40 A - Voltage stabiliser -J532- 30 4 - Fuse 4 on fuse holder F -SF4- 30 A - Voltage stabiliser -J532- Radio -R- Digital sound package control unit -J525- 30 5 - Fuse 5 on fuse holder F -SF5- 25 A - DC/AC converter with socket, 12 V-230 V -U13- 30 6 - Fuse 6 on fuse holder F -SF6- 30 A - Auxiliary heater control unit -J364- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Control unit for electromechanical parking brake -J540- 30 8 - Fuse 8 on fuse holder F -SF8- 30 A - Heated rear left seat switch with regulator -E128- Heated rear right seat switch with regulator -E129- 30 9 - Fuse 9 on fuse holder F -SF9- 30 A - Front right door 30 10 - Fuse 10 on fuse holder F -SF10- 5 A - Remote control receiver for auxiliary heater -R64- 30 11 - Fuse 11 on fuse holder F -SF11- 30 A - Rear right door 30 12 - Fuse 12 on fuse holder F -SF12- 5 A - Telephone transmitter and receiver unit -R36- Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- 30 Fuses in fuse carrier ST5 on fuse holder F -SF- (black) 67)  only for Avant models (5-door)     No.   Current Flow Diagram designation Nominal value   Function/component Terminal 1 - Fuse 1 on fuse holder F -SF1- 15 A - Front right seat ventilation control unit -J799- 30 2 - Fuse 2 on fuse holder F -SF2- 5 A - Relay for automatic anti-dazzle interior mirror -J910- Automatic anti-dazzle interior mirror -Y7- 30 3 - Fuse 3 on fuse holder F -SF3- 30 A - Supply fuse carrier 2 -ST2-fuse 1 on fuse holder D -SD1- to fuse 4 on fuse holder D -SD4- 30 4 - Fuse 4 on fuse holder F -SF4- 7.5 A - Control unit 1 for information electronics -J794- 30 5 - Fuse 5 on fuse holder F -SF5- 5 A - Chip card reader control unit -J676- Radio -R- TV tuner -R78- 30 6 - Fuse 6 on fuse holder F -SF6- 5 A - Reversing camera system control unit -J772- 30 7 - Fuse 7 on fuse holder F -SF7- 30 A - Heated rear window relay -J9- Heated rear window -Z1- 30 8 - Fuse 8 on fuse holder F -SF8- 5 A - Preparation for multimedia system: 2-pin connector, in driver seat backrest -T2dy- 2-pin connector, in front passenger seat backrest -T2dz- 30 9 - Fuse 9 on fuse holder F -SF9-   - Not assigned   10 - Fuse 10 on fuse holder F -SF10-   - Not assigned   11 - Fuse 11 on fuse holder F -SF11- 30 A - Control unit for reducing agent metering system -J880- 30 12 - Fuse 12 on fuse holder F -SF12- 10 A - Control unit for reducing agent metering system -J880- 30 only for saloon models (4-door)     Item   Current Flow Diagram designation Nominal value   Function/component Terminal H - Heated rear window single fuse -S41- 40 A - Heated rear window relay -J9- Heated rear window -Z1- 30 AUDI A4 2013 Terminal 30 wiring junction 2 TV22 with Jump start socket U6 up to October 2011 Terminal 30 wiring junction 2 -TV22- with Jump start socket -U6- up to October 2011 Fitting location: in engine compartment - centre of plenum chamber.     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Terminal 30 wiring junction 2 -TV22- B -  Jump start socket -U6- 1 -  Fuse 1 (30) -S204-, 2 -  Fuse 2 (30) -S205-, S204 (600 W) and S205 (400 W) are installed in models with radiator fan control 1000 W 71)  Radiator fan control 600 W 30 2 - Fuse 2 (30) -S205- 40 A - Radiator fan control 400 W 30 AUDI A4 2013 Terminal 30 wiring junction 2 TV22 with Jump start socket U6 from November 2011 Terminal 30 wiring junction 2 -TV22- with Jump start socket -U6- from November 2011 Fitting location for models from November 2011: in engine compartment - centre of plenum chamber.     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Terminal 30 wiring junction 2 -TV22- B -  Jump start socket -U6- 1 -  Fuse 1 (30) -S204-, 2 -  Fuse 2 (30) -S205-, 3 -  Fuse 3 (30) -S206-, S204 (600 W) and S205 (400 W) are installed in models with radiator fan control 1000 W 73)  Radiator fan control 600 W 30 2 - Fuse 2 (30) -S205- 40 A - Radiator fan control 400 W 30 3 - Fuse 3 (30) -S206- 110 A - Power steering control unit -J500- 30 AUDI A4 2013 3-pin relay and fuse holder 3-pin relay and fuse holder Only models with diesel engine   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car C -  Auxiliary heater fuse -S126-, 40 A D -  Auxiliary heater fuse 2 -S328-, 60 A Only models with diesel engine   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car C -  Auxiliary heater fuse -S126-, 40 A D -  Auxiliary heater fuse 2 -S328-, 60 A AUDI A4 2013 6-pin coupling station of A-pillar, driver side 6-pin coupling station of A-pillar, driver side .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car F -  Front passenger seat adjustment thermal fuse 1 -S46-, 15 A G -  Driver seat adjustment thermal fuse 1 -S44-, 15 A .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car F -  Driver seat adjustment thermal fuse 1 -S44-, 15 A G -  Front passenger seat adjustment thermal fuse 1 -S46-, 15 A AUDI A4 2013 6-pin coupling station of A-pillar, front passenger side 6-pin coupling station of A-pillar, front passenger side Fitting location of 6-pin coupling station of A-pillar front passenger side for models with left-hand drive in front passenger footwell on A-pillar, behind side trim   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car for models with right-hand drive only, for models with left-hand drive 77)  applicable from November 2011   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car F -  ABS control unit fuse 1 -S123-, 40 A G1 -  ABS control unit fuse 3 -S137-, 25 A G2 -  ABS control unit fuse 2 -S124-, 10 A / 5 A AUDI A4 2013 Relay/fuse holder with onboard supply control unit J519 Relay/fuse holder with onboard supply control unit -J519- Location, relay and fuse holder with onboard supply control unit -J519- for models with left-hand drive: Below the dash panel, driver side 79)  for models with left-hand drive only, for models with right-hand drive   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  ABS control unit fuse 1 -S123-, 40 A .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Not assigned AUDI A4 2013 Overview of coupling stations Overview of coupling stations https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car q   Location for models with right-handdrive only: q   Location for models with right-handdrive only: q   Location for models with -R199- als Audi music interface (AMI - CAN): q   Location for models with -R199- als AUX connection: q   Location for models with right-handdrive only: q   Location for models with right-handdrive only: Relay- /Fuse holder B -SB- q   Pin and screw connection: -T17q-, -T17r-, -T17t-, 501 q   Location for models with left-handdrive only: q   Location for models with right-handdrive only: AUDI A4 2013 6-pin coupling station of A-pillar front passenger side 6-pin coupling station of A-pillar front passenger side applicable up to model year 2009 2)  applicable from model year 2010   Note t  Figure shows left-handdrive model. t  Figure for right-handdrive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 1 -  10-pin connector, black -T10y- 2 -  10-pin connector, red -T10ab- 2 -  17-pin connector, yellow -T17x- 3 -  17-pin connector, blue -T17a- 4 -  17-pin connector, black -T17g- 5 -  17-pin connector, brown -T17f- 6 -  10-pin connector, grey -T10ac- 6 -  17-pin connector, white -T17w- D -  5-pin connector, yellow -T5c- applicable up to model year 2009 4)  .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 1 -  10-pin connector, black -T10y- 2 -  10-pin connector, red -T10ab- 2 -  17-pin connector, yellow -T17x- 3 -  17-pin connector, blue -T17a- 4 -  17-pin connector, black -T17g- 5 -  17-pin connector, brown -T17f- 6 -  10-pin connector, grey -T10ac- 6 -  17-pin connector, white -T17w- D -  5-pin connector, yellow -T5c- AUDI A4 2013 Fuse holder D SD Fuse holder D -SD- Fitting location Fuse holder D -SD- for models with left-handdrive: Below the dash panel cover, front passenger side   Note t  Figure shows left-handdrive model. t  Figure for right-handdrive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  46-pin connector, black, CAN disconnector, dash panel -T46s- .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  46-pin connector, black, CAN disconnector, dash panel -T46s- AUDI A4 2013 Coupling station seat wiring driver side Coupling station seat wiring driver side Location: under driver seat in vehicle floor Connectors: 1 -  6-pin connector, green -T6l- 2 -  10-pin connector, red -T10p- 3 -  10-pin connector, black -T10o- 4 -  2-pin connector, blue-purple -T2da- 5 -  3-pin connector, yellow -T3k-   https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car AUDI A4 2013 Coupling station seat wiring front passenger side Coupling station seat wiring front passenger side Location: under front passenger seat in vehicle floor Connectors: 1 -  6-pin connector, green -T6k- 2 -  10-pin connector, red -T10m- 3 -  10-pin connector, black -T10n- 4 -  2-pin connector, blue-purple -T2db- 5 -  3-pin connector, yellow -T3h- AUDI A4 2013 6-pin coupling station of A-pillar driver side 6-pin coupling station of A-pillar driver side applicable up to model year 2009   Note t  Figure shows left-handdrive model. t  Figure for right-handdrive models .   https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 1 -  17-pin connector, green -T17j- 2 -  17-pin connector, red -T17e- 3 -  Not assigned 4 -  17-pin connector, brown -T17d- 5 -  17-pin connector, black -T17c- 6 -  17-pin connector, blue -T17b- A -  5-pin connector, yellow -T5b- E -  46-pin connector, black, CAN disconnector -T46i- applicable up to model year 2009   Note t  Figure shows right-handdrive model. t  Figure for left-handdrive models .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 1 -  17-pin connector, green -T17j- 2 -  17-pin connector, red -T17e- 3 -  Not assigned 4 -  17-pin connector, brown -T17d- 5 -  17-pin connector, black -T17c- 6 -  17-pin connector, blue -T17b- A -  5-pin connector, yellow -T5b- E -  46-pin connector, black, CAN disconnector -T46i- AUDI A4 2013 Relay- / Fuse holder B SB Relay- /Fuse holder B -SB- Location: Relay- /Fuse holder B -SB- for models with left-handdrive: In electronics box in plenum chamber, driver side       Note t  Figure shows left-handdrive model. t  Figure for right-handdrive models . https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car G -  17-pin connector, red -T17q- H -  17-pin connector, white -T17r- I -  17-pin connector, brown -T17t- M -  501Screw connection 2 (30), on relay plate .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car G -  17-pin connector, red -T17q- H -  17-pin connector, white -T17r- I -  17-pin connector, brown -T17t- M -  501Screw connection 2 (30), on relay plate AUDI A4 2013 Relay- /fuse holder with Onboard supply control unit J519 Relay- /fuse holder with Onboard supply control unit -J519- .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 6 -  500Screw connection 1 (30), on relay plate .     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car 5 -  500Screw connection 1 (30), on relay plate AUDI A4 2013 Connection for external audio source R199 als Audi music interface (AMI - MOST) Connection for external audio source -R199- als Audi music interface (AMI - MOST) Location: In glove compartment.   Note for models with Audi music interface only (AMI - MOST) only.     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Connection for external audio source -R199- AUDI A4 2013 Connection for external audio source R199 als Audi music interface (AMI - CAN) Connection for external audio source -R199- als Audi music interface (AMI - CAN) Location: In glove compartment.   Note for models with Audi music interface only (AMI - CAN) only.     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Connection for external audio source -R199- AUDI A4 2013 Connection for external audio source R199 als AUX connection Connection for external audio source -R199- als AUX connection Location: in centre console   Note for models with AUX connection only.     https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Get access to all wiring diagrams of the car A -  Connection for external audio source -R199- AUDI A4 2013 Overview of earth points - saloon models (4-door)

Overview of earth points - saloon models (4-door)

Overview of Ground Connections - Avant (5-door)

   

685	Earth point 1, on front of right longitudinal member

q	Fitting location:

q	Overview of Avant models (5-door):

638	Earth point, right A-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

688	Earth point 2, on centre tunnel

q	Fitting location:

q	Overview of Avant models (5-door):

687	Earth point 1, on centre tunnel

q	Fitting location:

q	Overview of Avant models (5-door):

730	Earth point 1, on right rear wheel housing

q	Fitting location:

q	Overview of Avant models (5-door):

62	Earth point, right C-pillar

q	Fitting location:

51	Earth point, on right in luggage compartment

q	Fitting location:

q	Overview of Avant models (5-door):

624	Earth point, starter battery

q	Fitting location:

q	Overview of Avant models (5-door):

61	Earth point, left C-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

50	Earth point, on left in luggage compartment

q	Fitting location:

q	Overview of Avant models (5-door):

602	Earth point, in front left footwell

q	Fitting location:

q	Overview of Avant models (5-door):

639	Earth point, left A-pillar

q	Fitting location:

q	Overview of Avant models (5-door):

12	Earth point, on left in engine compartment

q	Fitting location:

q	Overview of Avant models (5-door):

615	Earth point, on left suspension strut

q	Fitting location:

q	Overview of Avant models (5-door):

671	Earth point 1, on front of left longitudinal member

q	Fitting location:

q	Overview of Avant models (5-door):

AUDI A4 2013 Overview of earth points - Avant models (5-door) Overview of earth points - Avant models (5-door)   Note Overview of earth points - saloon models (4-door)

685	Earth point 1, on front of right longitudinal member

q	Fitting location:

638	Earth point, right A-pillar

q	Fitting location:

688	Earth point 2, on centre tunnel

q	Fitting location:

687	Earth point 1, on centre tunnel

q	Fitting location:

730	Earth point 1, on right rear wheel housing

q	Fitting location:

654	Earth point, right D-pillar

q	Fitting location:

624	Earth point, starter battery

q	Fitting location:

61	Earth point, left C-pillar

q	Fitting location:

50	Earth point, on left in luggage compartment

q	Fitting location:

51	Earth point, on right in luggage compartment

q	Fitting location:

602	Earth point, in front left footwell

q	Fitting location:

639	Earth point, left A-pillar

q	Fitting location:

12	Earth point, on left in engine compartment

q	Fitting location:

615	Earth point, on left suspension strut

q	Fitting location:

671	Earth point 1, on front of left longitudinal member

q	Fitting location:

671 Earth point 1, on front of left longitudinal member Location: on longitudinal member, near front left wheel housing Torque: 9 Nm

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615 Earth point, on left suspension strut Location: on the front left suspension strut chamber Torque: 9 Nm

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12 Earth point, on left in engine compartment Location: Between suspension strut chamber and front left plenum chamber Torque: 9 Nm

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685 Earth point 1, on front of right longitudinal member Location: on front of right longitudinal member, behind wheel housing Torque: 20 Nm

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639 Earth point, left A-pillar Location: behind lower left A-pillar trim Torque: 9 Nm

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638 Earth point, right A-pillar Location: behind lower right A-pillar trim Torque: 9 Nm

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687 Earth point 1, on centre tunnel Location: On the left side of the centre tunnel Torque: 9 Nm

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688 Earth point 2, on centre tunnel Location: On the right side of the centre tunnel Torque: 9 Nm

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730 Earth point 1, on right rear wheel housing -arrow- Location: near front of rear right wheel housing, under sill panel trim Torque: 9 Nm

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61 Earth point, left C-pillar -arrow- Location: Under left C-pillar trim, near rear window Torque: 9 Nm

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62 Earth point, right C-pillar -upper arrow- Location: Under right C-pillar trim, near rear window Torque: 9 Nm

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50 Earth point, on left in luggage compartment -arrow- Location: Under side trim, left in luggage compartment, near wheel housing Torque: 9 Nm

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51 Earth point, on right in luggage compartment -arrow- Location: Under side trim, right in luggage compartment, near wheel housing Torque: 9 Nm

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61 Earth point, left C-pillar -arrow- Location: behind the trim of left side panel, behind C-pillar Torque: 9 Nm

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654 Earth point, right D-pillar Location: behind upper right D-pillar trim Torque: 9 Nm

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624 Earth point, starter battery Location: under the floor panel in the luggage compartment, right next to the starter battery Torque: 18 Nm

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602 Earth point, in front left footwell -arrow- Location: Under the carpet in the driver's footwell

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AUDI A4 2013 Overview of control units in interior of vehicle

Overview of control units in interior of vehicle

♦ Overview also valid for Avant models (5-door)!

   

q	for models without MMI

q	Location and connectors for models with right-hand drive:

6 -	Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-

q

Location:

9 -	Rear right door control unit -J389-

q	Location: in rear right door

12 -	Fuel pump control unit -J538-

q	Location: under rear seat bench

14 -	Active steering control unit -J792-

q	Location and connectors:

q	Location and connectors for models with right-hand drive:

q	Location and connectors for models with right-hand drive:

18 -	Electronic steering column lock control unit -J764-

q	Location: on steering column

19 -	Climatronic control unit -J255-

q	Location and connectors:

20 -	Control unit for information electronics 1 -J794-

q	for models with MMI

q	Location and connectors:

q	for models with MMI:

AUDI A4 2013 Overview of control units in rear part of vehicle - saloon models (4-door) only

Overview of control units in rear part of vehicle - saloon models (4-door) only

q	Connectors:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Connector:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Connectors:

q	Overview of Avant models (5-door):

q	Connectors:

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

q	Overview of Avant models (5-door):

AUDI A4 2013 Overview of control units in rear part of vehicle - Avant models (5-door) only

Overview of control units in rear part of vehicle - Avant models (5-door) only

q	Connectors:

q	Connector:

q	Connectors:

q	Connectors:

4 -	Digital sound package control unit -J525-

q	Location: in left of luggage compartment, behind side trim.

4 -	Satellite radio -R146-

q	Location: in left of luggage compartment, behind side trim.

4 -	Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-

q	Location: in left of luggage compartment, behind side trim.

4 -	TV tuner -R78-

q	Location: in left of luggage compartment, behind side trim.

6 -	Voltage stabiliser -J532-

q	Fitting location:

AUDI A4 2013 Control unit for headlight range control J431 / control unit for bend lighting and headlight range control J745 Control unit for headlight range control -J431- / control unit for bend lighting and headlight range control -J745- Location: in front passenger footwell, behind the glove compartment

A -	Control unit for headlight range control -J431- / control unit for bend lighting and headlight range control -J745-

Connector on control unit for headlight range control -J431-:

A1 -	26-pin connector -T26b-

AUDI A4 2013 Fresh air blower control unit J126 Fresh air blower control unit -J126- Location: in front passenger footwell, behind the glove compartment

A -	Fresh air blower control unit -J126-

AUDI A4 2013 Driver door control unit J386

Driver door control unit -J386-

Location door control unit, driver side -J386- for models with left-hand drive:

In driver door.

t	Figure shows left-hand drive model.

t	Figure for right-hand drive models .

   

A -	Driver door control unit -J386-

A2 -	16-pin connector -T16m-

A4 -	6-pin connector -T6am-

.

A -	Driver door control unit -J386-

A1 -	32-pin connector -T32j-

A2 -	16-pin connector -T16m-

A3 -	20-pin connector -T20f-

A4 -	6-pin connector -T6am-

AUDI A4 2013 Front passenger door control unit J387 Front passenger door control unit -J387- Location door control unit, front passenger side -J387- for models with left-hand drive: in front passenger door   Note: t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

A -	Front passenger door control unit -J387-

A2 -	16-pin connector -T16n-

A4 -	6-pin connector -T6ao-

.

A -	Front passenger door control unit -J387-

A1 -	32-pin connector -T32l-

A2 -	16-pin connector -T16n-

A3 -	20-pin connector -T20g-

A4 -	6-pin connector -T6ao-

AUDI A4 2013 Automatic anti-dazzle interior mirror Y7 with Rain and light detector sensor G397 Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397- Location: at front of roof side member.

Rain and light detector sensor -G397-

4 -	Main beam assist control unit -J844-

AUDI A4 2013 Sliding​ sunroof​ adjustment​ control​ unit J245 with sliding sunroof motor V1 Sliding​ sunroof​ adjustment​ control​ unit -J245- with sliding sunroof motor -V1- Location: in roof module, on upper front roof frame Connector:

AUDI A4 2013 Onboard supply control unit J519

Onboard supply control unit -J519-

Location onboard supply control unit -J519- for models with left-hand drive:

Driver side dash panel, bottom.

t	Figure shows left-hand drive model.

t	Figure for right-hand drive models .

   

A -	Onboard supply control unit -J519-

A2 -	17-pin connector, brown (connector E) -T17m-

A4 -	6-pin​ connector,​ green​ (connector​ G) -T6f-

A6 -	16-pin connector, brown (connector C) -T16b-

Location onboard supply control unit -J519- for models with right-hand drive:

Driver side dash panel, bottom.

t	Figure​ shows​ right-hand drive​ model.

t	Figure for left-hand drive models .

   

A -	Onboard supply control unit -J519-

A1 -	17-pin connector, black (connector D) -T17l-

A2 -	17-pin connector, brown (connector E) -T17m-

A3 -	17-pin connector, red (connector F) -T17n-

A4 -	6-pin​ connector,​ green​ (connector​ G) -T6f-

A5 -	32-pin connector, grey (connector A) -T32a-

A6 -	16-pin connector, brown (connector C) -T16b-

A7 -	32-pin connector, black (connector B) -T32b-

AUDI A4 2013 Active steering control unit J792 Active steering control unit -J792- Location: Under the carpet in the driver's footwell

4 -	Active steering control unit -J792-

Connectors:

2 -	8-pin connector, black -T8g-

AUDI A4 2013 Radio R (with integrated CD changer R41 / DVD changer R161 )

Radio -R- (with integrated CD changer -R41- / DVD changer -R161-)

Location:

in middle part dash panel.

   

A -

Radio -R-

A1 -	Connector block, consisting of:

t	8-pin connector, brown -T8k-

t	8-pin connector, black -T16l-

t	12-pin connector, green -T12a-

t	12-pin connector, blue -T12s-

1-pin connector, black -T1i- (connection DAB) / 1-pin connector, green -T1k- (connection SDARS)

A4 -	2-pin connector, white -T2df- (AM / FM1 / FM2 connection)

AUDI A4 2013 CD changer R41 / DVD changer R161 CD changer -R41- / DVD changer -R161- Location: In glove compartment.

A -	CD changer -R41- / DVD changer -R161-

A1 -	8-pin connector -T8aa-

A2 -	2-pin connector -T2dm-

AUDI A4 2013 Chip card reader control unit J676 Chip card reader control unit -J676- Location: In glove compartment.   Note: t  Figure​ shows​ right-hand drive​ model. t  for models with Japan navigation system only.

A -	Chip card reader control unit -J676-

AUDI A4 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-

Location:

Dash panel - centre.

Connector -A1- is given as an example for differing equipment versions

   

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

A1 -	Connector for models with MMI High up to August 2009:

t	22-pin connector, black -T22b-

A1 -	Connectors for models with MMI Basic, from September 2009:

t	8-pin connector, black -T8ai-

t	4-pin connector, white -T4ao-

A1 -	Connectors for models with MMI High from September 2009:

t	8-pin connector, black -T8ai-

t	4-pin connector, black -T4an-

A1 -	10-pin connector, red -T10u-

A1 -

AUDI A4 2013 Control unit for information electronics 1 J794

Control unit for information electronics 1 -J794-

Location:

in middle part dash panel.

   

A -	Control unit for information electronics 1 -J794-

A2 -	1-pin connector, blue -T1n-

A3 -

Vacant

A5 -	for models with -J794- basic:

t	4-pin connector, violet -T4al-

A6 -	1-pin connector, green -T1o-

A7 -	Connector block, consisting of:

t	8-pin​ connector,​ brown​ -T8ah-

t	8-pin​ connector,​ black​ -T8ao-

t	12-pin connector, blue -T12x-

t	12-pin connector, green -T12y-

AUDI A4 2013 Multimedia​ system​ operating​ unit​ E380

Multimedia​ system​ operating​ unit​ -E380-

Location:

on centre console.

   

A -	Multimedia​ system​ operating​ unit​ -E380-

AUDI A4 2013 Climatronic control unit J255

Climatronic control unit -J255-

Location:

in middle part dash panel.

   

A -	Climatronic control unit -J255-

A2 -	20-pin connector -T20e-

AUDI A4 2013 Airbag​ control​ unit​ J234 Airbag​ control​ unit​ -J234- Location: Under centre console

A -	Airbag​ control​ unit​ -J234-

AUDI A4 2013 Telephone transmitter and receiver unit R36

Telephone transmitter and receiver unit -R36-

Location:

in front right footwell.

   

A -	Telephone transmitter and receiver unit -R36-

A1 -	Connector -B- (Aerial​ for​ Bluetooth)

AUDI A4 2013 16-pin connector T16 diagnostic connection

16-pin connector -T16- diagnostic connection

Location:

Driver side dash panel, bottom.

   

A -	16-pin connector -T16- diagnostic connection

AUDI A4 2013 Data bus diagnostic interface J533 Data bus diagnostic interface -J533- Location: below the dash panel.

A -	Data bus diagnostic interface -J533-

A2 -	20-pin connector -T20d-

AUDI A4 2013 Control unit in dash panel insert J285 Control unit in dash panel insert -J285- Location: in the dash panel.

A -	Control unit in dash panel insert -J285-

AUDI A4 2013 Control units on right in luggage compartment

Control units on right in luggage compartment

   

Location: 1 -  Convenience system central control unit -J393- Connectors on convenience system central control unit -J393- → Chapter 2 -  Aerial​ amplifier​ for​ mobile​ telephone -R86- 3 -  Electronically controlled damping control unit -J 250- Connector on electronically controlled damping control unit -J250- 4 -  Reversing camera system control unit -J772- 5 -  Trailer detector control unit -J345- Connectors on trailer detector control unit -J345- 6 -  Park assist steering control unit -J791- Connectors on park assist steering control unit -J791- 7 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-

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Connectors on convenience system central control unit -J393-

2 -	32-pin connector, black (connector B) -T32c-

4 -	32-pin connector, blue (connector F) -T32e-

5 -	6-pin​ connector​ (connector​ G) -not assigned-

7 -	1-pin​ connector,​ grey​ (connector​ D) -T1h-

Connector on electronically controlled damping control unit -J250-

A -	Electronically controlled damping control unit -J 250-

Connector:

Connectors on trailer detector control unit -J345-

A -	Trailer detector control unit -J345-

Connectors:

C -	12-pin connector, red -T12d-

Connectors on Parallel​ Parking​ Assistance​ Control​ Module -J791-

B -	12-pin connector, brown -T12e-

AUDI A4 2013 All-wheel drive control unit J492

All-wheel drive control unit -J492-

.

   

1 -	All-wheel drive control unit -J492-

Location for Avant (5-door) models:

on right wheel housing.

t	Figure shows Avant (5-door) model.

t	Figure for saloon (4-door) model .

   

1 -	All-wheel drive control unit -J492-

2 -	47-pin connector -T47b-

AUDI A4 2013 Voltage stabiliser J532 Voltage stabiliser -J532- Location: In spare wheel recess, on left next to battery.

1 -	Voltage stabiliser -J532-

AUDI A4 2013 Battery​ monitor​ control​ unit​ J367

Battery​ monitor​ control​ unit​ -J367-

Location:

at negative terminal of battery -A-.

   

3 -	2-pin connector -T2x-

AUDI A4 2013 Overview of relays

Overview of relays

Overview also valid for Avant models (5-door)!

   

q	Fitting location for models from November 2011:

1 -

2 -

q	Fitting location for models with right-hand drive:

q	Fitting location for models with right-hand drive:

q	Fitting location for models with right-hand drive:

AUDI A4 2013 Relay/fuse holder with onboard supply control unit J519 Relay/fuse holder with onboard supply control unit -J519- valid up to May 2009 for models with 3.2l, 6-cylinder petrol engine without auxiliary heater 2)  Only models with start/stop system   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

1 -	Not assigned

2 -	Circulation pump relay -J160-

2 -	Horn relay -J413-

2 -	Relay for automatic anti-dazzle interior mirror -J910-

3 -	Terminal 15 voltage supply relay -J329-

4 -	Taxi alarm remote control, control unit -J601-

4 -	Special vehicle control unit -J608-

valid up to May 2009 for models with 3.2l, 6-cylinder petrol engine without auxiliary heater 5)  Only models with start/stop system   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .

1 -	Not assigned

2 -	Circulation pump relay -J160-

2 -	Horn relay -J413-

2 -	Relay for automatic anti-dazzle interior mirror -J910-

3 -	Terminal 15 voltage supply relay -J329-

4 -	Taxi alarm remote control, control unit -J601-

4 -	Special vehicle control unit -J608-

AUDI A4 2013 3-pin relay and fuse holder 3-pin relay and fuse holder Only models with diesel engine   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

1 -	Auxiliary air heater control unit -J604-

2 -	Low heat output relay -J359-

3 -	High heat output relay -J360-

Only models with diesel engine   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .

1 -	Auxiliary air heater control unit -J604-

2 -	Low heat output relay -J359-

3 -	High heat output relay -J360-

AUDI A4 2013 Relay/ fuse holder B SB Relay/fuse holder B -SB- Only models with diesel engine 10)  for models with 6-cylinder petrol engine only 12)  for models with 8-cylinder petrol engine (RS4) only   Note t  Figure shows left-hand drive model. t  Figure for right-hand drive models . t  -SB14- to -SB17- in -ST1- for models as of November 2011 only.

A -	Automatic glow period control unit -J179-

A -	Engine component current supply relay -J757-

B -	Starter motor relay -J53-

q	Position 2.1

B -	Starter motor relay 2 -J695-

q	Position 2.2

C -	Secondary air pump relay -J299-

D -	Terminal 30 voltage supply relay -J317-

D -	Motronic current supply relay -J271-

E -	Fuel pump relay -J17-

E -	Brake servo relay -J569-

E -	Relay for supplementary fuel pump -J832-

E -	Continued coolant circulation relay -J151-

E -	Additional coolant pump relay -J496-

E -	Gearbox cooling circuit relay -J696-

E -	Engine component current supply relay 2 -J976-

F -	Secondary air pump relay 2 -J545-

Only models with diesel engine 15)  for models with 6-cylinder petrol engine only 17)  for models with 8-cylinder petrol engine (RS4) only   Note t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models . t  -SB14- to -SB17- in -ST1- for models as of November 2011 only.

A -	Automatic glow period control unit -J179-

A -	Engine component current supply relay -J757-

B -	Starter motor relay -J53-

q	Position 2.1

B -	Starter motor relay 2 -J695-

q	Position 2.2

C -	Secondary air pump relay -J299-

D -	Terminal 30 voltage supply relay -J317-

D -	Motronic current supply relay -J271-

E -	Fuel pump relay -J17-

E -	Relay for supplementary fuel pump -J832-

E -	Continued coolant circulation relay -J151-

E -	Additional coolant pump relay -J496-

E -	Gearbox cooling circuit relay -J696-

E -	Engine component current supply relay 2 -J976-

F -	Secondary air pump relay 2 -J545-

AUDI A4 2013 Relay/ fuse holder F SF up to October 2011 Relay/fuse holder F -SF- up to October 2011 Fitting location of relay/fuse holder F -SF-:

in luggage compartment, behind side trim on right 19)  for special vehicles only Position of relays saloon (4-door): A -  Not assigned B -  Battery regulation control unit -J84- C -  Heated rear window relay -J9- D -  Not assigned E -  Relay for power sockets -J807- Relay assignment Avant (5-door): A -  Heated rear window relay -J9- B -  Battery regulation control unit -J84- C -  Not assigned D -  Not assigned E -  Relay for power sockets -J807- AUDI A4 2013 Relay/ fuse holder F SF from November 2011 Relay/fuse holder F -SF- from November 2011 Location, relay/fuse holder F -SF- from November 2011: in luggage compartment, behind side trim on right 20)  for special vehicles only

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Position of relays saloon (4-door): A -  Not assigned B -  Reducing agent metering system relay -J963- C -  Two-way radio voltage relay -J84-, discontinued from April 2012 D -  Heated rear window relay -J9- E -  Relay for power sockets -J807- Relay assignment Avant (5-door): A -  Heated rear window relay -J9- B -  Reducing agent metering system relay -J963- C -  Not assigned D -  Not assigned E -  Relay for power sockets -J807-

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AUDI A4 2013 Overview of control units

Overview of control units

♦ Overview also valid for Avant models (5-door)!

   

q	Location and connector, from model year 2013:

q	Location and connectors for models with 800 W or 1000 W radiator fan:

3 -	Radiator fan control unit 2 -J671- / radiator fan 2 -V177-

q	Location and connectors for models with 800 W or 1000 W radiator fan:

q	Location and connectors for models with right-hand drive (with -T60- and -T94-):

q	Location and connectors for models with left-hand drive -T91- and -T105-):

q	Location and connectors for models with right-hand drive (with -T91- and -T105-):

Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743-

q	Location and connectors:

q	Location and connector, from model year 2013:

AUDI A4 2013 Engine control unit J623 Engine control unit -J623- Location engine control unit -J623- for models with left-hand drive: In electronics box in plenum chamber, driver side   Note: t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

A -	Engine control unit -J623-

C -	60-pin connector, on wiring harness -T60-

A -	Engine control unit -J623-

B -	94-pin connector -T94-

C -	60-pin​​ connector​ -T60-

Location engine control unit -J623- for models with left-hand drive (with -T91- and -T105-): In electronics box in plenum chamber, driver side   Note: t  Figure shows left-hand drive model. t  Figure for right-hand drive models .

A -	Engine control unit -J623-

C -	105-pin​​ connector​ -T105-

Location engine control unit -J623- for models with right-hand drive (with -T91- and -T105-): In electronics box in plenum chamber, driver side   Note: t  Figure​ shows​ right-hand drive​ model. t  Figure for left-hand drive models .

A -	Engine control unit -J623-

B -	91-pin​​ connector​ -T91-

C -	105-pin​​ connector​ -T105-

AUDI A4 2013 Left gas discharge light control unit J343 , up to model year 2012 Left gas discharge light control unit -J343-, up to model year 2012 Fitting location: on left headlight.

C -	Power output module for left headlight -J667-

AUDI A4 2013 Right gas discharge light control unit J344 , up to model year 2012

Right gas discharge light control unit -J344-, up to model year 2012

Fitting location:

on right headlight.

   

C -	Power​ output​ module​ for​ right​ headlight -J668-

AUDI A4 2013 Left gas discharge light control unit J343 , from model year 2013

Left gas discharge light control unit -J343-, from model year 2013

Fitting location:

on left headlight.

   

A -	Power output module for left headlight -J667-

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

C -	14-pin connector -T14a-

D -	Left gas discharge light control unit -J343-

E -	Output module for left side marker light -J986-

AUDI A4 2013 Right gas discharge light control unit J344 , from model year 2013 Right gas discharge light control unit -J344-, from model year 2013 Fitting location: on right headlight.

A -	Power​ output​ module​ for​ right​ headlight -J668-

B -	Control unit for left daytime running light and side light -J861-

C -	14-pin connector -T14b-

D -	Right​ gas​ discharge​ light​ control​ unit​ -J344-

E -	Output module for right side marker light -J987-

AUDI A4 2013 Auxiliary heater control unit J364 Auxiliary heater control unit -J364- Fitting location: behind right wheel housing.

A -	Auxiliary heater control unit -J364-

A2 -	2-pin connector -T2ds-

AUDI A4 2013 Automatic​ gearbox​ control​ unit J217 / Mechatronics​ for​ dual​ clutch​ gearbox​ J743 Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743- Fitting location: In gearbox housing.

A -	Automatic​ gearbox​ control​ unit -J217- / Mechatronics​ for​ dual​ clutch​ gearbox​ -J743-

A2 -	8-pin connector -T8al-

A4 -	14-pin connector -T14i-

AUDI A4 2013 Wiper motor control unit J400 Wiper motor control unit -J400- Fitting location: in plenum chamber.

A -	Wiper motor control unit -J400-

AUDI A4 2013 ABS control unit J104

ABS control unit -J104-

Fitting location:

in left of engine compartment.

   

A -	ABS control unit -J104-

AUDI A4 2013 400 W or 600 W radiator fan

400 W or 600 W radiator fan

Fitting location:

on radiator.

Radiator fan 2 -V177- present depending on engine variant.

   

A -	Radiator fan control unit -J293-

B1 -	2-pin connector, black -T2kl-

C -	Radiator fan 2 -V177-

AUDI A4 2013 800 W or 1000 W radiator fan

800 W or 1000 W radiator fan

Fitting location:

on radiator.

   

A -	Radiator fan control unit -J293-

B1 -	4-pin connector -T4bl-

B2 -	Radiator fan 2 -V177-

AUDI A4 2013 Garage door operation control unit J530 Garage door operation control unit -J530- Fitting location: at inner centre of radiator.

A -	Garage door operation control unit -J530-

AUDI A4 2013 Adaptive​ cruise​ control​ unit J428

Adaptive​ cruise​ control​ unit -J428-

Fitting location:

In front bumper grill cover on right.

   

A -	Adaptive​ cruise​ control​ unit -J428-

B -	8-pin connector, black -T8a-