AUDI A4 2013 – 4.2l petrol engine, CFSA . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2013 - Battery - Terminal 15 voltage supply relay

A	Battery
J329	Terminal 15 voltage supply relay
J367	Battery monitor control unit
J393	Convenience system central control unit
T2x	2-pin connector
T32d	32-pin connector
B299	Positive connection 3 (30), in main wiring harness
B300	Positive connection 4 (30), in main wiring harness

Wiring Diagram AUDI A4 2013 - Battery isolation igniter - Terminal 30 wiring junction 2

J234	Airbag control unit
N253	Battery isolation igniter
SA2	Fuse 2 in fuse holder A
T2y	2-pin connector
TV22	Terminal 30 wiring junction 2
T100	100-pin connector
A32	Positive connection (30), in dash panel wiring harness
B299	Positive connection 3 (30), in main wiring harness
D50	Positive connection (30), in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Starter - Alternator - Voltage regulator - Terminal 30 wiring junction 2 - Jump start socket

B	Starter
C	Alternator
C1	Voltage regulator
C24	Suppression filter
J500	Power steering control unit
S204	Fuse 1 (30)
S205	Fuse 2 (30)
S206	Fuse 3 (30)
T2n	2-pin connector
T5l	5-pin connector, in engine compartment
T17e	17-pin connector, red
T17r	17-pin connector, white
TV22	Terminal 30 wiring junction 2
U6	Jump start socket
85	Earth connection 1, in engine compartment wiring harness
B698	Connection 3 (LIN bus) in main wiring harness
D75	Positive connection 2 (30), in engine compartment wiring harness
*	see applicable current flow diagram
*2	see applicable current flow diagram for radiator fan

Wiring Diagram AUDI A4 2013 - Main relay - Engine control unit - Engine component current supply relay

J271	Main relay
J623	Engine control unit
J757	Engine component current supply relay
T17q	17-pin connector, red
T91	91-pin connector
B146	Positive connection 1 (87), in interior wiring harness
D101	Connection 1 in engine compartment wiring harness
D102	Connection 2 in engine compartment wiring harness
D108	Connection 6 in engine compartment wiring harness
D144	Positive connection 5 (30), in engine compartment wiring harness
*	Cross section depends on equipment

Wiring Diagram AUDI A4 2013 - Starter motor relay - Engine control unit - Starter motor relay 2

J53	Starter motor relay
J500	Power steering control unit
J623	Engine control unit
J695	Starter motor relay 2
ST1	Fuse carrier 1
SB1	Fuse 1 on fuse holder B
SB3	Fuse 3 on fuse holder B
SB12	Fuse 12 on fuse holder B
SB15	Fuse 15 on fuse holder B
SC16	Fuse 16 on fuse holder C
T1	Single connector
T5l	5-pin connector, in engine compartment
T6h	6-pin connector
T17r	17-pin connector, white
T91	91-pin connector
D51	Positive connection 1 (15), in engine compartment wiring harness
D97	Connection (50), in engine compartment right wiring harness
*	see applicable current flow diagram
*2	see applicable current flow diagram for automatic gearbox
*3	see applicable current flow diagram for gearbox

Wiring Diagram AUDI A4 2013 - Map-controlled engine cooling system thermostat - Engine control unit - Activated charcoal filter solenoid valve 1 - Left electrohydraulic engine mounting solenoid valve - Right electrohydraulic engine mounting solenoid valve - Valve for oil pressure control

F265	Map-controlled engine cooling system thermostat
J623	Engine control unit
N80	Activated charcoal filter solenoid valve 1
N144	Left electrohydraulic engine mounting solenoid valve
N145	Right electrohydraulic engine mounting solenoid valve
N428	Valve for oil pressure control
ST1	Fuse carrier 1
SB4	Fuse 4 on fuse holder B
SB6	Fuse 6 on fuse holder B
T91	91-pin connector
T105	105-pin connector
D103	Connection 3 in engine compartment wiring harness
D112	Connection 10 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Secondary air pump relay - Secondary air pump 2 relay - Engine control unit - Secondary air inlet valve - Intake manifold flap valve - Coolant circulation pump - Secondary air pump motor - Secondary air pump motor 2

J299	Secondary air pump relay
J545	Secondary air pump 2 relay
J623	Engine control unit
N112	Secondary air inlet valve
N316	Intake manifold flap valve
ST1	Fuse carrier 1
SB16	Fuse 16 on fuse holder B
S130	Secondary air pump fuse
S284	Secondary air pump fuse 2
T14c	14-pin connector, in engine compartment
T14d	14-pin connector, in engine compartment
T17q	17-pin connector, red
T91	91-pin connector
T105	105-pin connector
V50	Coolant circulation pump
V101	Secondary air pump motor
V189	Secondary air pump motor 2
201	Earth connection 5, in engine compartment wiring harness
D112	Connection 10 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Ignition coil 1 with output stage - Ignition coil 2 with output stage - Ignition coil 3 with output stage - Ignition coil 4 with output stage

J623	Engine control unit
N70	Ignition coil 1 with output stage
N127	Ignition coil 2 with output stage
N291	Ignition coil 3 with output stage
N292	Ignition coil 4 with output stage
P	Spark plug connector
Q	Spark plugs
T105	105-pin connector
167	Earth connection 4, in engine compartment wiring harness
201	Earth connection 5, in engine compartment wiring harness
600	Earth point, on right cylinder head
D121	Connection 19 in engine compartment wiring harness
D122	Connection 20 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Ignition coil 5 with output stage - Ignition coil 6 with output stage - Ignition coil 7 with output stage - Ignition coil 8 with output stage

J623	Engine control unit
N323	Ignition coil 5 with output stage
N324	Ignition coil 6 with output stage
N325	Ignition coil 7 with output stage
N326	Ignition coil 8 with output stage
P	Spark plug connector
Q	Spark plugs
ST1	Fuse carrier 1
SB14	Fuse 14 on fuse holder B
T105	105-pin connector
209	Earth connection 6, in engine compartment wiring harness
317	Earth connection 7, in engine compartment wiring harness
601	Earth point, on left cylinder head
D122	Connection 20 in engine compartment wiring harness
D123	Connection 21 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Knock sensor 1 - Knock sensor 2 - Knock sensor 3 - Throttle valve module - Engine control unit

G61	Knock sensor 1
G66	Knock sensor 2
G186	Throttle valve drive for electric throttle
G187	Throttle valve drive angle sender 1 for electric throttle
G188	Throttle valve drive angle sender 2 for electric throttle
G198	Knock sensor 3
J338	Throttle valve module
J623	Engine control unit
T3am	3-pin connector, black
T3an	3-pin connector, brown
T3ao	3-pin connector, black
T105	105-pin connector
200	Earth connection (screening), in engine compartment wiring harness
D195	Connection 1 (5V) in engine compartment wiring harness
*	Wiring colour depends on equipment

Wiring Diagram AUDI A4 2013 - Hall sender - Knock sensor 4 - Throttle valve module 2 - Engine control unit

G40	Hall sender
G199	Knock sensor 4
G296	Throttle valve drive 2
G297	Angle sender 1 for throttle valve drive 2
G298	Angle sender 2 for throttle valve drive 2
G301	Hall sender 4
G410	Fuel pressure sender for low-pressure
J544	Throttle valve module 2
J623	Engine control unit
T3ap	3-pin connector, brown
T105	105-pin connector
200	Earth connection (screening), in engine compartment wiring harness
220	Earth connection (sender earth), in engine wiring harness
327	Earth connection (sender earth), in engine compartment wiring harness
D190	Connection 3 (5V) in engine prewiring harness
D195	Connection 1 (5V) in engine compartment wiring harness
*	Wiring colour depends on equipment

Wiring Diagram AUDI A4 2013 - Intake manifold flap potentiometer - Intake manifold flap potentiometer 2 - Engine control unit

G62	Coolant temperature sender
G336	Intake manifold flap potentiometer
G512	Intake manifold flap potentiometer 2
G610	Sender 2 for secondary air pressure
J623	Engine control unit
T5l	5-pin connector, in engine compartment
T91	91-pin connector
T105	105-pin connector
220	Earth connection (sender earth), in engine wiring harness
D141	Connection (5V) in engine prewiring harness
D190	Connection 3 (5V) in engine prewiring harness
*	see applicable current flow diagram for radiator fan

Wiring Diagram AUDI A4 2013 - Engine speed sender - Hall sender 3 - Engine control unit

G28	Engine speed sender
G163	Hall sender 2
G300	Hall sender 3
G609	Sender 1 for secondary air pressure
J623	Engine control unit
T105	105-pin connector
D141	Connection (5V) in engine prewiring harness
D174	Connection 2 (5V) in engine prewiring harness

Wiring Diagram AUDI A4 2013 - Intake air temperature sender - Fuel pressure sender - Engine control unit

G42	Intake air temperature sender
G71	Intake manifold pressure sender
G247	Fuel pressure sender
G294	Brake servo pressure sensor
J623	Engine control unit
T14c	14-pin connector, in engine compartment
T91	91-pin connector
T105	105-pin connector
328	Earth connection 2 (sender earth), in engine compartment wiring harness
D174	Connection 2 (5V) in engine prewiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Camshaft control valve 1 - Exhaust flap valve - Exhaust camshaft control valve 1

J623	Engine control unit
N205	Camshaft control valve 1
N208	Camshaft control valve 2
N220	Exhaust flap valve
N318	Exhaust camshaft control valve 1
N319	Exhaust camshaft control valve 2
ST1	Fuse carrier 1
SB7	Fuse 7 on fuse holder B
T17q	17-pin connector, red
T91	91-pin connector
T105	105-pin connector
D115	Connection 13 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Lambda probe - Lambda probe 2 - Engine control unit - Lambda probe heater - Lambda probe heater 2

G39	Lambda probe
G108	Lambda probe 2
J623	Engine control unit
ST1	Fuse carrier 1
SB10	Fuse 10 on fuse holder B
T5i	5-pin connector, black
T5j	5-pin connector, black
T91	91-pin connector
Z19	Lambda probe heater
Z28	Lambda probe heater 2
D106	Connection 4 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Lambda probe after catalytic converter - Lambda probe 2 after catalytic converter - Engine control unit

G130	Lambda probe after catalytic converter
G131	Lambda probe 2 after catalytic converter
J623	Engine control unit
ST1	Fuse carrier 1
SB17	Fuse 17 on fuse holder B
T4l	4-pin connector, brown
T4m	4-pin connector, brown
T91	91-pin connector
Z29	Lambda probe 1 heater after catalytic converter
Z30	Lambda probe 2 heater after catalytic converter
D107	Connection 5 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Accelerator position sender - Engine control unit

G79	Accelerator position sender
G185	Accelerator position sender 2
J623	Engine control unit
T6ag	6-pin connector
T17e	17-pin connector, red
T17r	17-pin connector, white
T91	91-pin connector
B537	Connection 28, in main wiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 6 - Injector - cylinder 8

J623	Engine control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N84	Injector, cylinder 6
N86	Injector, cylinder 8
T14c	14-pin connector, in engine compartment
T14d	14-pin connector, in engine compartment
T105	105-pin connector
D119	Connection 17 in engine compartment wiring harness
D120	Connection 18 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Injector - cylinder 3 - Injector - cylinder 4 - Injector - cylinder 5 - Injector - cylinder 7

J623	Engine control unit
N32	Injector, cylinder 3
N33	Injector, cylinder 4
N83	Injector, cylinder 5
N85	Injector, cylinder 7
T14c	14-pin connector, in engine compartment
T14d	14-pin connector, in engine compartment
T105	105-pin connector
D117	Connection 15 in engine compartment wiring harness
D118	Connection 16 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Engine control unit - Fuel metering valve - Fuel metering valve 2

G400	Tank pressure sensor
J623	Engine control unit
J909	Control unit for fuel tank leak detection
N290	Fuel metering valve
N402	Fuel metering valve 2
ST1	Fuse carrier 1
ST2	Fuse carrier 2
SB5	Fuse 5 on fuse holder B
SF12	Fuse 12 in fuse holder F
T17q	17-pin connector, red
T91	91-pin connector
T105	105-pin connector
D111	Connection 9 in engine compartment wiring harness
*	Only models with fuel system diagnostic pump
*2	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A4 2013 - Oil level and oil temperature sender - Engine control unit - Vacuum pump for brakes

G266	Oil level and oil temperature sender
J569	Brake servo relay
J623	Engine control unit
ST1	Fuse carrier 1
SB2	Fuse 2 on fuse holder B
SB8	Fuse 8 on fuse holder B
T91	91-pin connector
T105	105-pin connector
V192	Vacuum pump for brakes
131	Earth connection 2, in engine compartment wiring harness
D110	Connection 8 in engine compartment wiring harness

Wiring Diagram AUDI A4 2013 - Oil temperature sender - Engine control unit

E45	Cruise control system switch
G8	Oil temperature sender
J527	Steering column electronics control unit
J623	Engine control unit
T14d	14-pin connector, in engine compartment
T16f	16-pin connector
T17b	17-pin connector, blue
T17q	17-pin connector, red
T91	91-pin connector
D114	Connection 12 in engine compartment wiring harness
*	Only models with cruise control system (CCS)
*2	see applicable current flow diagram for gearbox

Wiring Diagram AUDI A4 2013 - Brake light switch - Oil pressure switch for reduced oil pressure - Engine control unit

F	Brake light switch
F378	Oil pressure switch for reduced oil pressure
J255	Climatronic control unit
J623	Engine control unit
T4k	4-pin connector
T17e	17-pin connector, red
T17q	17-pin connector, red
T17r	17-pin connector, white
T20e	20-pin connector
T91	91-pin connector
T105	105-pin connector
B335	Connection 1 (54), in main wiring harness
*	Solenoid coil for brake light sensor

Wiring Diagram AUDI A4 2013 - Data bus diagnostic interface - Engine control unit - Mechatronic unit for dual clutch gearbox

J533	Data bus diagnostic interface
J623	Engine control unit
J743	Mechatronic unit for dual clutch gearbox
T17b	17-pin connector, blue
T17r	17-pin connector, white
T20d	20-pin connector
T91	91-pin connector
B383	Connection 1 (powertrain CAN bus, high), in main wiring harness
B385	Connection 3 (powertrain CAN bus, high), in main wiring harness
B390	Connection 1 (powertrain CAN bus, low), in main wiring harness
B392	Connection 3 (powertrain CAN bus, low), in main wiring harness
D159	Connection (high bus), in engine compartment wiring harness
D160	Connection (low bus), in engine compartment wiring harness
*	Gradually discontinued
*2	see applicable current flow diagram for automatic gearbox

Wiring Diagram AUDI A4 2013 - Control unit in dash panel insert - Data bus diagnostic interface

J285	Control unit in dash panel insert
J533	Data bus diagnostic interface
ST2	Fuse carrier 2
SD4	Fuse 4 on fuse holder D
SD5	Fuse 5 on fuse holder D
T20d	20-pin connector
T32f	32-pin connector
T46s	46-pin connector
81	Earth connection 1, in dash panel wiring harness
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 - Fuel delivery unit - Control unit in dash panel insert - Fuel pump control unit

G	Fuel gauge sender
GX1	Fuel delivery unit
G6	Fuel system pressurisation pump
G169	Fuel gauge sender 2
J285	Control unit in dash panel insert
J538	Fuel pump control unit
ST2	Fuse carrier 2
SC3	Fuse 3 on fuse holder C
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
369	Earth connection 4, in main wiring harness
663	Earth point, rear right side panel
*	Only models with all-wheel drive

Wiring Diagram AUDI A4 2013 - Oil pressure switch - Coolant shortage indicator sender - Onboard supply control unit

F22	Oil pressure switch
G32	Coolant shortage indicator sender
J519	Onboard supply control unit
N280	Air conditioner compressor regulating valve
T2t	2-pin connector
T14c	14-pin connector
T17l	17-pin connector
T17q	17-pin connector, white
T17r	17-pin connector, white
T32b	32-pin connector
401	Earth connection (sender earth), in interior wiring harness

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-

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

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

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

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-

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 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

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

615 Earth point, on left suspension strut Location: on the front left suspension strut chamber Torque: 9 Nm   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    12 Earth point, on left in engine compartment Location: Between suspension strut chamber and front left plenum chamber Torque: 9 Nm   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    685 Earth point 1, on front of right longitudinal member Location: on front of right longitudinal member, behind wheel housing Torque: 20 Nm   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    639 Earth point, left A-pillar Location: behind lower left A-pillar trim Torque: 9 Nm   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    638 Earth point, right A-pillar Location: behind lower right A-pillar trim Torque: 9 Nm   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    687 Earth point 1, on centre tunnel Location: On the left side of the centre tunnel Torque: 9 Nm   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    688 Earth point 2, on centre tunnel Location: On the right side of the centre tunnel Torque: 9 Nm   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    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   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    61 Earth point, left C-pillar -arrow- Location: Under left C-pillar trim, near rear window Torque: 9 Nm   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    62 Earth point, right C-pillar -upper arrow- Location: Under right C-pillar trim, near rear window Torque: 9 Nm   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    50 Earth point, on left in luggage compartment -arrow- Location: Under side trim, left in luggage compartment, near wheel housing Torque: 9 Nm   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    51 Earth point, on right in luggage compartment -arrow- Location: Under side trim, right in luggage compartment, near wheel housing Torque: 9 Nm   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    61 Earth point, left C-pillar -arrow- Location: behind the trim of left side panel, behind C-pillar Torque: 9 Nm   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    654 Earth point, right D-pillar Location: behind upper right D-pillar trim Torque: 9 Nm   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    624 Earth point, starter battery Location: under the floor panel in the luggage compartment, right next to the starter battery Torque: 18 Nm   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    602 Earth point, in front left footwell -arrow- Location: Under the carpet in the driver's footwell   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 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 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-