AUTOMOTIVE ELECTRICIANS
WIRING-DIAGRAMS

AUDI A4 2008 – Infotainment MOST bus . Wiring diagrams, Pin Connector, Location

    HomeAUDIAUDI A4AUDI A4 2008AUDI A4 2008 ALL WIRING DIAGRAMS - ENGLISH

Wiring Diagram AUDI A4 2008 - Control unit for front display and information control panel - Digital sound package control unit - Data bus diagnostic interface - Telephone transmitter and receiver unit - CD changer - Digital radio



Wiring Diagram AUDI A4 2008 - Control unit for front display and information control panel - Digital sound package control unit - Data bus diagnostic interface - Telephone transmitter and receiver unit - CD changer - Digital radio
J523 Control unit for front display and information control panel
J525 Digital sound package control unit
J533 Data bus diagnostic interface
R36 Telephone transmitter and receiver unit
R41 CD changer
R147 Digital radio
T2bg 2-pin connector, near glove compartment
*According to equipment
*2see applicable current flow diagram
*3Fibre optic cable (FOC)

Wiring Diagram AUDI A4 2008 - Control unit for front display and information control panel - Data bus diagnostic interface - CD changer - Connection for external audio sources



Wiring Diagram AUDI A4 2008 - Control unit for front display and information control panel - Data bus diagnostic interface - CD changer - Connection for external audio sources
J523 Control unit for front display and information control panel
J533 Data bus diagnostic interface
R41 CD changer
R199 Connection for external audio sources
T2bg 2-pin connector, near glove compartment
*According to equipment
*2Fibre optic cable (FOC)

Wiring Diagram AUDI A4 2008 - Navigation system with CD drive control unit - Digital sound package control unit - Radio - Telephone transmitter and receiver unit - TV tuner - Satellite radio - Digital radio



Wiring Diagram AUDI A4 2008 - Navigation system with CD drive control unit - Digital sound package control unit - Radio - Telephone transmitter and receiver unit - TV tuner - Satellite radio - Digital radio
J401 Navigation system with CD drive control unit
J525 Digital sound package control unit
R Radio
R36 Telephone transmitter and receiver unit
R78 TV tuner
R146 Satellite radio
R147 Digital radio
*According to equipment
*2see applicable current flow diagram
*3Only models with satellite radio
*4Only models with digital radio
*5Fibre optic cable (FOC)


AUDI A4 2008 Overview of control units in interior of vehicle

Overview of control units in interior of vehicle
  Note:
♦ Overview also valid for Avant models (5-door)!
   
AUDI A4 2008 Overview of control units in interior of vehicle
1 -  Headlight range control unit -J431-
q   Location and connectors: → Chapter
1 -  Control unit for bend lighting and headlight range control​ -J745-
q   Location and connectors: → Chapter
2 -  Fresh air blower control unit -J126-
q   Location and connector: → Chapter
3 -  Front information display and operating unit control unit -J523-
q   for models with MMI Basic
q   Location: behind glove compartment
q   for models with MMI High: → Item
3 -  CD changer -R41- / DVD changer -R161-
q   for models with MMI
q   Location and connectors: → Chapter
q   for models without MMI → Item
3 -  Chip card reader control unit -J676-
q   Location and connector: → Chapter
4 -  Front passenger door control unit -J387-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor
5 -  Display unit for front information display and operating unit control unit -J685-
q   Location and connectors: → Chapter
6 -  Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-
q   Location: → chapter
7 -  Sliding​ sunroof​ adjustment​ control​ unit -J245- with sliding sunroof motor -V1-
q   Location and connector: → Chapter

   
AUDI A4 2008 Overview of control units in interior of vehicle
8 -  Telephone transmitter and receiver unit -R36-
q   Location and connectors: → Chapter
8 -  Front passenger seat adjustment with memory control unit -J521-
q   Location: under front passenger seat
9 -  Rear right door control unit -J389-
q   Location: in rear right door
10 -  Multimedia​ system​ operating​ unit​ -E380-
q   Location: and connector: → chapter
11 -  Rear left door control unit -J388-
q   Location: in rear left door
12 -  Fuel pump control unit -J538-
q   Location: under rear seat bench
13 -  Airbag​ control​ unit​ -J234-
q   Location: and connector: → chapter
14 -  Seat and steering column adjustment control unit with memory -J136-
q   Fitting location: under driver seat
14 -  Active steering control unit -J792-
q   Location and connectors: → Chapter
15 -  Driver door control unit -J386-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor
16 -  Control unit in dash panel insert -J285-
q   Location and connector: → Chapter
17 -  16-pin connector -T16- diagnostic connection
q   Location: → chapter
17 -  Onboard supply control unit -J519-
q   Location and connectors for models with left-hand drive: → Chapter
q   Location and connectors for models with right-hand drive: → Anchor

   
AUDI A4 2008 Overview of control units in interior of vehicle
18 -  Steering column electronics control unit -J527-
q   Location: on steering column
18 -  Electronic steering column lock control unit -J764-
q   Location: on steering column
18 -  Multifunction steering wheel control unit -J453-
q   Location: on steering column
19 -  Climatronic control unit -J255-
q   Location and connectors: → Chapter
20 -  Front information display and operating unit control unit -J523-
q   for models with MMI High
q   Location: in middle part dash panel
20 -  Control unit for information electronics 1 -J794-
q   for models with MMI
q   Location and connectors: → Chapter
20 -  Radio -R- with integrated CD changer -R41- / DVD changer -R161-
q   for models without MMI
q   Location and connectors: → Chapter
q   for models with MMI: → Item
21 -  Data bus diagnostic interface -J533-
q   Location and connectors: → Chapter

   


AUDI A4 2008 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
AUDI A4 2008 Overview of control units in rear part of vehicle - saloon models (4-door) only
1 -  Convenience system central control unit -J393-
q   Location: → chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Aerial​ amplifier​ for​ mobile​ telephone -R86-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
1 -  Electronically controlled damping control unit -J 250-
q   Fitting location: → Chapter
q   Connector: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Reversing camera system control unit -J772-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
1 -  Trailer detector control unit -J345-
q   Fitting location: → Chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Park assist steering control unit -J791-
q   Fitting location: → Chapter
q   Connectors: → chapter
q   Overview of Avant models (5-door): → Item
1 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
2 -  Lane change assist control unit -J769-
q   Location: on inside of rear bumper
q   Overview of Avant models (5-door): → Item
3 -  Digital sound package control unit -J525-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Radio -R- (K-box)
q   for models with MMI High
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item

   
AUDI A4 2008 Overview of control units in rear part of vehicle - saloon models (4-door) only
3 -  Satellite radio -R146-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Digital radio -R147-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
3 -  TV tuner -R78-
q   Location: in left of luggage compartment, behind side trim.
q   Overview of Avant models (5-door): → Item
4 -  Lane change assist control unit 2 -J770-
q   Location: on inside of rear bumper
q   Overview of Avant models (5-door): → Item
5 -  Voltage stabiliser -J532-
q   Fitting location: → Chapter
q   Overview of Avant models (5-door): → Item
6 -  Battery​ monitor​ control​ unit​ -J367-
q   Location and connector: → Chapter
q   Overview of Avant models (5-door): → Item
7 -  All-wheel drive control unit -J492-
q   Location and connector: → Chapter
q   Overview of Avant models (5-door): → Item

   


AUDI A4 2008 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
AUDI A4 2008 Overview of control units in rear part of vehicle - Avant models (5-door) only
1 -  All-wheel drive control unit -J492-
q   Fitting location and connector: → Anchor
2 -  Convenience system central control unit -J393-
q   Location: → chapter
q   Connectors: → chapter
2 -  Aerial​ amplifier​ for​ mobile​ telephone -R86-
q   Fitting location: → Chapter
2 -  Electronically controlled damping control unit -J 250-
q   Fitting location: → Chapter
q   Connector: → chapter
2 -  Reversing camera system control unit -J772-
q   Fitting location: → Chapter
2 -  Trailer detector control unit -J345-
q   Fitting location: → Chapter
q   Connectors: → chapter
2 -  Park assist steering control unit -J791-
q   Fitting location: → Chapter
q   Connectors: → chapter
2 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
q   Fitting location: → Chapter
3 -  Lane change assist control unit -J769-
q   Location: on inside of rear bumper
4 -  Digital sound package control unit -J525-
q   Location: in left of luggage compartment, behind side trim.
4 -  Radio -R- (K-box)
q   for models with MMI High
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 -  Digital radio -R147-
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.

   
AUDI A4 2008 Overview of control units in rear part of vehicle - Avant models (5-door) only
5 -  Lane change assist control unit 2 -J770-
q   Location: on inside of rear bumper
6 -  Voltage stabiliser -J532-
q   Fitting location: → Chapter
7 -  Battery​ monitor​ control​ unit​ -J367-
q   Location and connector: → Chapter



AUDI A4 2008 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
   
AUDI A4 2008 Control unit for headlight range control J431 / control unit for bend lighting and headlight range control J745
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 -T26a-
Connector on control unit for cornering light and headlight range control -J745-
A1 -  26-pin connector -T26b-



AUDI A4 2008 Fresh air blower control unit J126

Fresh air blower control unit -J126-
Location:
in front passenger footwell, behind the glove compartment
   
AUDI A4 2008 Fresh air blower control unit J126
A -  Fresh air blower control unit -J126-
A1 -  6-pin connector, brown -T6y-



AUDI A4 2008 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.
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
AUDI A4 2008 Driver door control unit J386
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-

Location door control unit, driver side -J386- for models with right-hand drive:
In driver door.
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
AUDI A4 2008 Driver door control unit J386
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 2008 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 → Anchor.
   
AUDI A4 2008 Front passenger door control unit J387
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-

Location door control unit, front passenger side -J387- for models with right-hand drive:
in front passenger door
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
AUDI A4 2008 Front passenger door control unit J387
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 2008 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.
   
AUDI A4 2008 Automatic anti-dazzle interior mirror Y7 with Rain and light detector sensor G397
1 -  Lane departure warning control unit -J759-
2 -  Automatic anti-dazzle interior mirror -Y7- with Rain and light detector sensor -G397-
3 -  Humidity sender -G355-
4 -  Main beam assist control unit -J844-



AUDI A4 2008 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 2008 Sliding​ sunroof​ adjustment​ control​ unit J245 with sliding sunroof motor V1
A -  10-pin connector -T10c-



AUDI A4 2008 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.
  Note:
t  Figure shows left-hand drive model.
t  Figure for right-hand drive models → Anchor.
   
AUDI A4 2008 Onboard supply control unit J519
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-

Location onboard supply control unit -J519- for models with right-hand drive:
Driver side dash panel, bottom.
  Note:
t  Figure​ shows​ right-hand drive​ model.
t  Figure for left-hand drive models → Anchor.
   
AUDI A4 2008 Onboard supply control unit J519
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 2008 Active steering control unit J792

Active steering control unit -J792-
Location:
Under the carpet in the driver's footwell
   
AUDI A4 2008 Active steering control unit J792
4 -  Active steering control unit -J792-
Connectors:
1 -  5-pin connnector, black -T5d-
2 -  8-pin connector, black -T8g-
3 -  10-pin connector, black -T10h-



AUDI A4 2008 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.
   
AUDI A4 2008 Radio R (with integrated CD changer R41 / DVD changer R161 )
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-
A2 -  1-pin connector, black -T1i- (connection DAB) / 1-pin connector, green -T1k- (connection SDARS)
A3 -  10-pin connector, black -T10v- (connection for display unit)
A4 -  2-pin connector, white -T2df- (AM / FM1 / FM2 connection)



AUDI A4 2008 CD changer R41 / DVD changer R161

CD changer -R41- / DVD changer -R161-
Location:
In glove compartment.
   
AUDI A4 2008 CD changer R41 / DVD changer R161
A -  CD changer -R41- / DVD changer -R161-
A1 -  8-pin connector -T8aa-
A2 -  2-pin connector -T2dm-



AUDI A4 2008 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.
   
AUDI A4 2008 Chip card reader control unit J676
A -  Chip card reader control unit -J676-
A1 -  32-pin​​ connector​ -T32ja-



AUDI A4 2008 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.
  Note:
Connector -A1- is given as an example for differing equipment versions
   
AUDI A4 2008 Display unit for front information display and operating unit control unit J685
A -  Display unit for front information display and operating unit control unit -J685-
A1 -  Connector for models with MMI Basic up to August 2009:
t  10-pin connector, black -T10t-
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 -  Connector for radio chorus (radio low):
t  10-pin connector, red -T10u-
A1 -  Connector for radio concert / symphony (radio mid):
t  10-pin connector, black -T10w-



AUDI A4 2008 Control unit for information electronics 1 J794

Control unit for information electronics 1 -J794-
Location:
in middle part dash panel.
   
AUDI A4 2008 Control unit for information electronics 1 J794
A -  Control unit for information electronics 1 -J794-
A1 -  1-pin connector, violet -T1p-
A2 -  1-pin connector, blue -T1n-
A3 -  Vacant
A4 -  4-pin​ connector,​ curry​ yellow -T4ap-
A5 -  for models with -J794- basic:
t  4-pin connector, violet -T4al-
A5 -  for models with -J794- high:
t  4-pin connector, grey -T4am-
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-
A8 -  2-pin​ connector​ -T2di-



AUDI A4 2008 Multimedia​ system​ operating​ unit​ E380

Multimedia​ system​ operating​ unit​ -E380-
Location:
on centre console.
   
AUDI A4 2008 Multimedia​ system​ operating​ unit​ E380
A -  Multimedia​ system​ operating​ unit​ -E380-
A1 -  16-pin connector -T16c-



AUDI A4 2008 Climatronic control unit J255

Climatronic control unit -J255-
Location:
in middle part dash panel.
   
AUDI A4 2008 Climatronic control unit J255
A -  Climatronic control unit -J255-
A1 -  16-pin connector -T16i-
A2 -  20-pin connector -T20e-



AUDI A4 2008 Airbag​ control​ unit​ J234

Airbag​ control​ unit​ -J234-
Location:
Under centre console
   
AUDI A4 2008 Airbag​ control​ unit​ J234
A -  Airbag​ control​ unit​ -J234-
A1 -  100-pin​​ connector​ -T100-



AUDI A4 2008 Telephone transmitter and receiver unit R36

Telephone transmitter and receiver unit -R36-
Location:
in front right footwell.
   
AUDI A4 2008 Telephone transmitter and receiver unit R36
A -  Telephone transmitter and receiver unit -R36-
A1 -  Connector -B- (Aerial​ for​ Bluetooth)
A2 -  54-pin connector -T54a-
A3 -  Connector -C- (optical​ fibre)
A4 -  Connector -D- (telephone aerial)



AUDI A4 2008 16-pin connector T16 diagnostic connection

16-pin connector -T16- diagnostic connection
Location:
Driver side dash panel, bottom.
   
AUDI A4 2008 16-pin connector T16 diagnostic connection
A -  16-pin connector -T16- diagnostic connection



AUDI A4 2008 Data bus diagnostic interface J533

Data bus diagnostic interface -J533-
Location:
below the dash panel.
   
AUDI A4 2008 Data bus diagnostic interface J533
A -  Data bus diagnostic interface -J533-
A1 -  2-pin connector -T2dl-
A2 -  20-pin connector -T20d-



AUDI A4 2008 Control unit in dash panel insert J285

Control unit in dash panel insert -J285-
Location:
in the dash panel.
   
AUDI A4 2008 Control unit in dash panel insert J285
A -  Control unit in dash panel insert -J285-
A1 -  32-pin connector, grey -T32f-



AUDI A4 2008 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- → Chapter
4 -  Reversing camera system control unit -J772-
5 -  Trailer detector control unit -J345-
Connectors on trailer detector control unit -J345- → Chapter
6 -  Park assist steering control unit -J791-
Connectors on park assist steering control unit -J791- → Chapter
7 -  Control​ unit​ for​ electromechanical​ parking​ brake -J540-
 
AUDI A4 2008 Control units on right in luggage compartment
Connectors on convenience system central control unit -J393-
AUDI A4 2008 Control units on right in luggage compartment
1 -  17-pin connector, black (connector A) -T17o-
2 -  32-pin connector, black (connector B) -T32c-
3 -  17-pin connector, brown (connector C) -T17p-
4 -  32-pin connector, blue (connector F) -T32e-
5 -  6-pin​ connector​ (connector​ G) -not assigned-
6 -  32-pin connector, grey (connector E) -T32d-
7 -  1-pin​ connector,​ grey​ (connector​ D) -T1h-

   
Connector on electronically controlled damping control unit -J250-
AUDI A4 2008 Control units on right in luggage compartment
A -  Electronically controlled damping control unit -J 250-
Connector:
 -  47-pin connector -T47a-

   
Connectors on trailer detector control unit -J345-
AUDI A4 2008 Control units on right in luggage compartment
A -  Trailer detector control unit -J345-
Connectors:
B -  16-pin connnector, black -T16d-
C -  12-pin connector, red -T12d-

   
Connectors on Parallel​ Parking​ Assistance​ Control​ Module -J791-
AUDI A4 2008 Control units on right in luggage compartment
A -  16-pin connector, brown -T16e-
B -  12-pin connector, brown -T12e-
C -  12-pin connector, black -T12g-



AUDI A4 2008 All-wheel drive control unit J492

All-wheel drive control unit -J492-
Location for saloon (4-door) models:
In spare wheel recess, in front of battery
  Note:
t  Figure shows saloon (4-door) model.
t  Figure for Avant (5-door) model → Anchor.
   
AUDI A4 2008 All-wheel drive control unit J492
1 -  All-wheel drive control unit -J492-
2 -  47-pin connector -T47b-

Location for Avant (5-door) models:
on right wheel housing.
  Note:
t  Figure shows Avant (5-door) model.
t  Figure for saloon (4-door) model → Anchor.
   
AUDI A4 2008 All-wheel drive control unit J492
1 -  All-wheel drive control unit -J492-
2 -  47-pin connector -T47b-



AUDI A4 2008 Voltage stabiliser J532

Voltage stabiliser -J532-
Location:
In spare wheel recess, on left next to battery.
   
AUDI A4 2008 Voltage stabiliser J532
1 -  Voltage stabiliser -J532-
2 -  12-pin connector -T12aa-



AUDI A4 2008 Battery​ monitor​ control​ unit​ J367

Battery​ monitor​ control​ unit​ -J367-
Location:
at negative terminal of battery -A-.
   
AUDI A4 2008 Battery​ monitor​ control​ unit​ J367
1 -  Battery -A-
2 -  Battery​ monitor​ control​ unit​ -J367-
3 -  2-pin connector -T2x-

   


AUDI A4 2008 Overview of coupling stations

Overview of coupling stations
AUDI A4 2008 Overview of coupling stations
1 -  6-pin coupling station of A-pillar front passenger side
q   Connectors: -T5c-, -T10y-, -T10ab-, -T10ac-, -T17a-, -T17f-, -T17g-, -T17w-, -T17x-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
2 -  Fuse holder D -SD-
q   Connector: -T46s-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
3 -  Connection for external audio source -R199- (AMI)
q   Location for models with -R199- als Audi music interface (AMI): → chapter
q   Location for models with -R199- als Audi music interface (AMI - CAN): → chapter
q   Location for models with -R199- als AUX connection: → Item
4 -  Coupling station seat wiring front passenger side
q   Connectors: -T2db-, -T3h-, -T6k-, -T10m-, -T10n-
q   Location: → chapter
5 -  Connection for external audio source -R199- (AUX)
q   Location for models with -R199- als AUX connection: → chapter
6 -  Coupling station seat wiring driver side
q   Connectors: -T2da-, -T3k-, -T6l-, -T10o-, -T10p-
q   Location: → chapter
7 -  Relay- /fuse holder with Onboard supply control unit -J519-
q   Screw connection: 500
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → chapter
8 -  6-pin coupling station of A-pillar driver side
q   Connectors: -T5b-, -T17b-, -T17c-, -T17d-, -T17e-, -T17j-, -T46i-
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor
9 -  Relay- /Fuse holder B -SB-
q   Pin and screw connection: -T17q-, -T17r-, -T17t-, 501
q   Location for models with left-handdrive only: → chapter
q   Location for models with right-handdrive only: → Anchor



AUDI A4 2008 6-pin coupling station of A-pillar front passenger side

6-pin coupling station of A-pillar front passenger side
Location of 6-pin coupling station of A-pillar front passenger side for models with left-handdrive
in front passenger footwell on A-pillar, behind side trim
1)  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 → Anchor.
   
AUDI A4 2008 6-pin coupling station of A-pillar front passenger side
1 -  10-pin connector, black -T10y-
2 -  10-pin connector, red -T10ab- → Note
2 -  17-pin connector, yellow -T17x- → Note
3 -  17-pin connector, blue -T17a-
4 -  17-pin connector, black -T17g-
5 -  17-pin connector, brown -T17f-
6 -  10-pin connector, grey -T10ac- → Note
6 -  17-pin connector, white -T17w- → Note
D -  5-pin connector, yellow -T5c- → Note

Location of 6-pin coupling station of A-pillar passenger side for models with right-handdrive
in front passenger footwell on A-pillar, behind side trim
3)  applicable up to model year 2009
4)  applicable from model year 2010
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
AUDI A4 2008 6-pin coupling station of A-pillar front passenger side
1 -  10-pin connector, black -T10y-
2 -  10-pin connector, red -T10ab- → Note
2 -  17-pin connector, yellow -T17x- → Note
3 -  17-pin connector, blue -T17a-
4 -  17-pin connector, black -T17g-
5 -  17-pin connector, brown -T17f-
6 -  10-pin connector, grey -T10ac- → Note
6 -  17-pin connector, white -T17w- → Note
D -  5-pin connector, yellow -T5c- → Note



AUDI A4 2008 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 → Anchor.
   
AUDI A4 2008 Fuse holder D SD
A -  46-pin connector, black, CAN disconnector, dash panel -T46s-

Fitting location Fuse holder D -SD- for models with right-handdrive:
Below the dash panel cover, front passenger side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
AUDI A4 2008 Fuse holder D SD
A -  46-pin connector, black, CAN disconnector, dash panel -T46s-

   


AUDI A4 2008 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-
 
AUDI A4 2008 Coupling station seat wiring driver side


AUDI A4 2008 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 2008 6-pin coupling station of A-pillar driver side

6-pin coupling station of A-pillar driver side
Location of 6-pin coupling station of A-pillar driver side for models with left-handdrive
in driver's footwell on A-pillar, behind side trim
5)  applicable up to model year 2009
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
 
AUDI A4 2008 6-pin coupling station of A-pillar driver side
AUDI A4 2008 6-pin coupling station of A-pillar driver side
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- → Note
E -  46-pin connector, black, CAN disconnector -T46i-

Location of 6-pin coupling station of A-pillar driver side for models with right-handdrive:
in driver's footwell on A-pillar, behind side trim
6)  applicable up to model year 2009
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
AUDI A4 2008 6-pin coupling station of A-pillar driver side
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- → Note
E -  46-pin connector, black, CAN disconnector -T46i-



AUDI A4 2008 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 → Anchor.
AUDI A4 2008 Relay- / Fuse holder B SB
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

Location: Relay- /Fuse holder B -SB- for models with right-handdrive:
In electronics box in plenum chamber, driver side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
AUDI A4 2008 Relay- / Fuse holder B SB
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 2008 Relay- /fuse holder with Onboard supply control unit J519

Relay- /fuse holder with Onboard supply control unit -J519-
Location, relay- /fuse holder with Onboard supply control unit -J519- for models with left-handdrive:
Below the dash panel, driver side
  Note
t  Figure shows left-handdrive model.
t  Figure for right-handdrive models → Anchor.
   
AUDI A4 2008 Relay- /fuse holder with Onboard supply control unit J519
6 -  500Screw connection 1 (30), on relay plate

Location, relay- /fuse holder with Onboard supply control unit -J519- for models with right-handdrive:
Below the dash panel, driver side
  Note
t  Figure shows right-handdrive model.
t  Figure for left-handdrive models → Anchor.
   
AUDI A4 2008 Relay- /fuse holder with Onboard supply control unit J519
5 -  500Screw connection 1 (30), on relay plate



AUDI A4 2008 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.
   
AUDI A4 2008 Connection for external audio source R199 als Audi music interface (AMI - MOST)
A -  Connection for external audio source -R199-



AUDI A4 2008 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.
   
AUDI A4 2008 Connection for external audio source R199 als Audi music interface (AMI - CAN)
A -  Connection for external audio source -R199-
A1 -  12-pin connector -T12t-



AUDI A4 2008 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.
   
AUDI A4 2008 Connection for external audio source R199 als AUX connection
A -  Connection for external audio source -R199-

   
Can't find your car? Check -> DiagnostData.com!