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AUDI A4 2003 — Parking aid . Wiring diagrams, Pin Connector, Location

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Wiring Diagram AUDI A4 2003 - Parking aid control unit - fuses



Wiring Diagram AUDI A4 2003 - Parking aid control unit - fuses
DIgnition/starter switch
F4Reversing light switch
F216Rear fog light cut-out, contact switch
J446Parking aid control unit
S5Fuse in fuse box/relay plate
S17Fuse in fuse box/relay plate
S231Fuse in fuse box
T10a10-pin connector, brown, connector point, electronics box, plenum chamber
T16f16-pin connector, brown, on parking aid control unit
T17d17-pin connector, red, connector point, electronics box, plenum chamber
   86 Earth connection -1-, in rear wiring harness
   501 Screw connection -2- (30), on relay plate
   A1 Positive (+) connection (30a), in dash panel wiring harness
   A2 Positive (+) connection (15), in dash panel wiring harness
   A32 Positive (+) connection (30), in dash panel wiring harness
   A52 Positive (+) connection -2- (30), in dash panel wiring harness
   A70 Connection (15a, fuse 231), in dash panel wiring harness
   A74 Connection (15a, fuse 5), in dash panel wiring harness
   A87 Connection (RF (reversing light)), in dash panel wiring harness
*Only applies to models with trailer socket

Wiring Diagram AUDI A4 2003 - Parking aid control unit - front parking aid senders



Wiring Diagram AUDI A4 2003 - Parking aid control unit - front parking aid sendersUnlock Lifetime Access for This Car.
G252Parking aid sender, front right
G253Parking aid sender, front right, centre
G254Parking aid sender, front left, centre
G255Parking aid sender, front left
H22Front parking aid warning buzzer
J446Parking aid control unit
T10i10-pin connector, blue, connector point, A pillar, left
T10x10-pin connector, black, near front bumper
T12e12-pin connector, brown, on parking aid control unit
   348 Earth connection (parking aid), in front bumper wiring harness
   X65 Connection (parking aid), in front bumper wiring harness
*Only applies to models with parking aid, front and rear

Wiring Diagram AUDI A4 2003 - Parking aid control unit - rear parking aid senders



Wiring Diagram AUDI A4 2003 - Parking aid control unit - rear parking aid sendersUnlock Lifetime Access for This Car.
G203Rear left parking aid sender
G204Centre rear left parking aid sender
G205Centre rear right parking aid sender
G206Rear right parking aid sender
H15Parking aid warning buzzer
J446Parking aid control unit
T12i12-pin connector, on parking aid control unit
T16f16-pin connector, brown, on parking aid control unit

Wiring Diagram AUDI A4 2003 - Parking aid control unit - parking aid button



Wiring Diagram AUDI A4 2003 - Parking aid control unit - parking aid buttonUnlock Lifetime Access for This Car.
E266Parking aid button
J104ABS with EDL control unit
J285Control unit with display in dash panel insert
J446Parking aid control unit
K136Parking aid warning lamp
L117Parking aid switch illumination
T1616-pin connector, black, diagnostic connector
T16f16-pin connector, brown, on parking aid control unit
T17b17-pin connector, green, connector point, A pillar, left
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   238 Earth connection -1-, in interior wiring harness
   A27 Connection (speed signal), in dash panel wiring harness
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   A159 Connection (L), in dash panel wiring harness
   A175 Connection (58s), in dash panel wiring harness
*As of model year 2003 no longer fitted
**Applicable from model year 2003


AUDI A4 2003 Control units overview

Control units overview
   
AUDI A4 2003 Control units overviewUnlock Lifetime Access for This Car.
1 -  Rear right door control unit -J389-
q   Location → page 805/3
2 -  Trailer detector control unit -J345-
q   Location → page 805/2
3 -  Parking aid control unit -J446-
q   Location → page 805/2
4 -  Rear left door control unit -J388-
q   Location ⇒ page → 805/3

   

Audi A4 Fitting Locations No.  805 / 2
Trailer detector control unit -J345-
   
Location:
In left luggage compartment, behind side trim


AUDI A4 2003 Parking aid control unit -J446-

Parking aid control unit -J446-
 
AUDI A4 2003 Parking aid control unit -J446-Unlock Lifetime Access for This Car.
Location:
In left luggage compartment, behind side trim, on apron
 
AUDI A4 2003 Parking aid control unit -J446-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  805 / 3


AUDI A4 2003 Rear left door control unit -J388-

Rear left door control unit -J388-
   
Location:
In window regulator motor integrated


AUDI A4 2003 Rear right door control unit -J389-

Rear right door control unit -J389-
 
AUDI A4 2003 Rear right door control unit -J389-Unlock Lifetime Access for This Car.
Location:
In window regulator motor integrated
 
AUDI A4 2003 Rear right door control unit -J389-Unlock Lifetime Access for This Car.


AUDI A4 2003 Overview of fuses

Overview of fuses
   
AUDI A4 2003 Overview of fusesUnlock Lifetime Access for This Car.
1 -  Main fuse: Strip fuse -S88-
q   Location → page 802/5
2 -  Coupling station of A-pillar
q   Components: -S46-
q   Location → page 802/6
3 -  Relay carrier (3-pin)
q   Components: -S126-, -S328-
q   Location → page 802/7
4 -  Relay carrier (9-pin) with onboard supply control unit
q   Components: -S37-, -S45-, -S87-, -S100-, -S184-, -S280-
q   Location → page 802/8
5 -  Relay carrier (4-pin) with screw connection
q   Components: -S42-, -S51-, -S123-, -S214-
q   Location up to July 2004 → page 802/9
q   Location from August 2004 → page 802/10

   

Audi A4 Fitting Locations No.  802 / 2
   
AUDI A4 2003 Overview of fusesUnlock Lifetime Access for This Car.
6 -  Fuse holder
q   Components: -S1- up to -S22- and -S223- up to -S244-
q   Location up to July 2004 → page 802/25
q   Location from August 2004 → page 802/32
7 -  Fuse holder for special vehicles
q   Components: -S55-, -S57-, -S182-, -S183-, -S184-, -S291-, -S292-, -S293-, S294-, -S295-, -S296-, -S297-, -S298-
q   Location taxi → page 802/38
q   Location police → page 802/39

   

Audi A4 Fitting Locations No.  802 / 3
   
AUDI A4 2003 Overview of fusesUnlock Lifetime Access for This Car.
8 -  Relay carrier (4-pin)
q   Components: -S23-, -S39-, -S73-, -S102-, -S116-, -S130-, -S131-, -S189-, -S282-, -S283-, -S286-, -S344-, -S345-
q   Location for petrol engines, up to July 2004 → page 802/11
q   Location for diesel engines, up to July 2004 → page 802/12
q   Location for engine codes BKE, BRB, BNA, BLB, BRC, BPW, BVG, BVF, BRF, BRE, BVA, BRD → page 802/13
q   Location for engine codes BSG, BPP, BTP, BKN, ASB → page 802/14
q   Location for engine codes BGB, BPG, BWE, BWT, BUL, BPJ, BYK → page 802/15
q   Location for engine code ALZ → page 802/16
q   Location for engine code ALT → page 802/17
q   Location for engine code BDG → page 802/18
q   Location for engine codes BFB, BBK, BHF → page 802/19
q   Location for engine code AWA → page 802/20

   

Audi A4 Fitting Locations No.  802 / 4
   
AUDI A4 2003 Overview of fusesUnlock Lifetime Access for This Car.
t  Location for engine codes AUK, BKH → page 802/21
t  Location for engine code BNS → page 802/22
t  Location for engine code BBJ, with manual gearbox or multitronic → page 802/23
t  Location for engine code BBJ with AG5 → page 802/24

   

Audi A4 Fitting Locations No.  802 / 5
Main fuse
   
Location:
On the battery
S88 -  Strip fuse
 
AUDI A4 2003 Overview of fusesUnlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 6


AUDI A4 2003 Position of fuses, coupling station of A-pillar

Position of fuses, coupling station of A-pillar
   
Location:
bottom right, behind the trim
Fuses:
E -  Seat adjustment fuse -S46-
E -  Seat adjustment fuse -S46- (with lumbar support adjustment)
 
AUDI A4 2003 Position of fuses, coupling station of A-pillarUnlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 7


AUDI A4 2003 Position of fuses, relay carrier (3-pin)

Position of fuses, relay carrier (3-pin)
   
Location:
Driver side dash panel
Fuses:
A ¹) -  Auxiliary heater fuse -S62-
B -  Auxiliary heater fuse -S126-
C -  Auxiliary heater fuse 2 -S328-
¹) applicable up to model year 2003
 
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Audi A4 Fitting Locations No.  802 / 8


AUDI A4 2003 Position of fuses, relay carrier (9-pin) with onboard supply control unit

Position of fuses, relay carrier (9-pin) with onboard supply control unit
   
Location:
Driver side dash panel, behind the relay carrier (3-pin)
Fuses:
A -  Rear roller blind thermal fuse -S100-
B -  Rear roller blind thermal fuse -S100-
B -  Socket 1 fuse (driving school vehicle) -S184-
D -  Window regulator single fuse 2 -S280-
E -  Driver seat adjustment thermal fuse 2 -S45-
F -  Window regulator single fuse -S37-
G -  Trailer towing attachment thermal fuse -S87-
 
AUDI A4 2003 Position of fuses, relay carrier (9-pin) with onboard supply control unitUnlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 9


AUDI A4 2003 Position of fuses, relay carrier (4-pin) with screw connection, up to July 2004

Position of fuses, relay carrier (4-pin) with screw connection, up to July 2004
   
Location:
Driver side dash panel
Fuses:
B -  Optional equipment: vermin repellent
E -  Radiator fan run-on fuse -S214-
F -  Special vehicle fuse
G -  Radiator fan single fuse -S42-
H -  ABS control unit fuse 1 -S123-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin) with screw connection, up to July 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 10


AUDI A4 2003 Position of fuses, relay carrier (4-pin) with screw connection, from August 2004

Position of fuses, relay carrier (4-pin) with screw connection, from August 2004
   
Location:
Driver side dash panel
Fuses:
B -  Optional equipment: vermin repellent
E -  S51 - Fuse (driving school vehicle) ¹) -S51-
F -  Fuse (driving school vehicle) ³) -S51-
 -  Radiator fan single fuse ¹)²) -S42-
G -  Radiator fan run-on fuse¹)²) -S214-
 -  Radiator fan single fuse ⁴) -S42-
H -  ABS control unit fuse 1 -S123-
¹) for engine codes BBK, BHF, BNS only
²) for engine codes BKN, ASB, BPP, BSG, BTP only
³) not for engine codes BBK, BHF
⁴) not for engine codes BKN, ASB, BPP, BSG, BTP, BBK, BHF
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin) with screw connection, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 11


AUDI A4 2003 Position of fuses, relay carrier (4-pin), petrol engines, up to July 2004

Position of fuses, relay carrier (4-pin), petrol engines, up to July 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Secondary air pump fuse -S130-
C -  Automatic gearbox fuse, run-on -S286-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), petrol engines, up to July 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 12


AUDI A4 2003 Position of fuses, relay carrier (4-pin), diesel engines, up to July 2004

Position of fuses, relay carrier (4-pin), diesel engines, up to July 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine control unit fuse -S102-
 -  Engine electronics fuse -S282-
B -  Engine glow plug strip fuse -S39-
C -  Automatic gearbox fuse, run-on -S286-
 -  Engine control unit fuse ²) -S102-
D -  Glow plug fuse 2 -S189-
F ¹) -  Glow plug fuse 2 -S189-
¹) applicable from model year 2002
²) for models with engine code BKE only
  Note:
The positions D and F are in the electronics box.
 
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Audi A4 Fitting Locations No.  802 / 13


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BKE, BRB, BNA, BLB, BRC, BPW, BVG, BVF, BRF, BRE, BVA, BRD, from August 2004

Position of fuses, relay carrier (4-pin), engine codes BKE, BRB, BNA, BLB, BRC, BPW, BVG, BVF, BRF, BRE, BVA, BRD, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Engine glow plug strip fuse -S39-
C -  Engine control unit fuse -S102-
D -  Automatic gearbox fuse, run-on -S286-
E -  Engine electronics fuse 2 -S344-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BKE, BRB, BNA, BLB, BRC, BPW, BVG, BVF, BRF, BRE, BVA, BRD, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 14


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BSG, BPP, BTP, BKN, ASB, from August 2004

Position of fuses, relay carrier (4-pin), engine codes BSG, BPP, BTP, BKN, ASB, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Engine glow plug strip fuse -S39-
C -  Engine control unit fuse -S102-
D -  Automatic gearbox fuse, run-on -S286-
E -  Engine electronics fuse 2 -S344-
G -  Engine electronics fuse 3 -S345-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BSG, BPP, BTP, BKN, ASB, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 15


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BGB, BPG, BWE, BWT, BUL, BPJ, BYK, from August 2004

Position of fuses, relay carrier (4-pin), engine codes BGB, BPG, BWE, BWT, BUL, BPJ, BYK, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Engine electronics fuse 3 -S345-
C -  Engine control unit fuse -S102-
D -  Fuse 1 -S131-
E -  Engine electronics fuse 2 -S344-
G -  Automatic gearbox fuse, run-on -S286-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BGB, BPG, BWE, BWT, BUL, BPJ, BYK, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 16


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code ALZ, from August 2004

Position of fuses, relay carrier (4-pin), engine code ALZ, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 -S344-
B -  Secondary air pump fuse -S130-
D -  Engine control unit fuse -S102-
E -  Injector fuse -S116-
G -  Engine electronics fuse -S282-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code ALZ, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 17


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code ALT, from August 2004

Position of fuses, relay carrier (4-pin), engine code ALT, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 -S344-
B -  Engine electronics fuse -S282-
C -  Automatic gearbox fuse, run-on -S286-
D -  Engine control unit fuse -S102-
E -  Injector fuse -S116-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code ALT, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 18


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code BDG, from August 2004

Position of fuses, relay carrier (4-pin), engine code BDG, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Engine glow plug strip fuse -S39-
C -  Automatic gearbox fuse, run-on -S286-
H¹) -  Glow plug fuse 2 -S189-
¹) on the relay carrier underside
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code BDG, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 19


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BFB, BBK, BHF, from August 2004

Position of fuses, relay carrier (4-pin), engine codes BFB, BBK, BHF, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 -S344-
B -  Secondary air pump fuse -S130-
C -  Automatic gearbox fuse, run-on -S286-
D -  Engine control unit fuse -S102-
E -  Injector fuse -S116-
G -  Engine electronics fuse -S282-
H¹) -  Heater fuse ²) -S23-
¹) on the relay carrier underside
²) for China only
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BFB, BBK, BHF, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 20


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code AWA, from August 2004

Position of fuses, relay carrier (4-pin), engine code AWA, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse -S282-
B -  Engine electronics fuse 2 -S344-
C -  Automatic gearbox fuse, run-on -S286-
D -  Fuse 1 -S131-
H ¹) -  Engine electronics fuse 3 -S345-
¹) on the relay carrier underside
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code AWA, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 21


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes AUK, BKH, from August 2004

Position of fuses, relay carrier (4-pin), engine codes AUK, BKH, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 -S344-
B -  Engine electronics fuse -S282-
C -  Engine control unit fuse -S102-
D -  Fuse 1 -S131-
E -  Lambda probe heating thermal fuse -S73-
G -  Automatic gearbox fuse, run-on -S286-
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes AUK, BKH, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 22


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code BNS, from August 2004

Position of fuses, relay carrier (4-pin), engine code BNS, from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 -S344-
B -  Engine electronics fuse -S282-
C -  Engine control unit fuse -S102-
D -  Fuse 1 -S131-
E -  Lambda probe heating thermal fuse -S73-
? -  Brake vacuum pump fuse -S283-
H ¹) -  Secondary air pump fuse -S130-
¹) on the relay carrier underside
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine code BNS, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 23


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BBJ (with manual gearbox or multitronicВ®), from August 2004

Position of fuses, relay carrier (4-pin), engine codes BBJ (with manual gearbox or multitronic®), from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine electronics fuse 2 ¹) -S344-
B -  Secondary air pump fuse ¹) -S130-
C -  Automatic gearbox fuse, run-on ¹) -S286-
D -  Engine control unit fuse¹) -S102-
E -  Injector fuse ¹) -S116-
G -  Engine electronics fuse ¹) -S282-
¹) for models with manual gearbox or with automatic gearbox (multitronic®) only
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BBJ (with manual gearbox or multitronicВ®), from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 24


AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BBJ (with AG5), from August 2004

Position of fuses, relay carrier (4-pin), engine codes BBJ (with AG5), from August 2004
   
Location:
In electronics box in plenum chamber
Fuses:
A -  Engine control unit fuse ¹) -S102-
B -  Secondary air pump fuse ¹) -S130-
C -  Engine electronics fuse ¹) -S282-
D -  Engine electronics fuse 2 ¹) -S344-
E -  Injector fuse ¹) -S116-
¹) for models with automatic gearbox (AG5) only
 
AUDI A4 2003 Position of fuses, relay carrier (4-pin), engine codes BBJ (with AG5), from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 25


AUDI A4 2003 Position of fuses, fuse holder, up to July 2004

Position of fuses, fuse holder, up to July 2004
   
Location:
Driver side dash panel
Fuse colours
35 A -  green-blue
30 A -  green
25 A -  white
20 A -  yellow
15 A -  blue
10 A -  red
7,5 A -  brown
5 A -  beige
  Note:
From fuse number 23 upwards the fuses in the fuse holder are designated as 223 in the Current Flow Diagram
 
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Audi A4 Fitting Locations No.  802 / 26
   
Position of fuses, up to July 2004:
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
1 - S1 - Fuse in relay plate fuse holder 10 A - J255 - Climatronic control unit 30
2 - S2 - Fuse in relay plate fuse holder 5 A - W9 - Left footwell light
W10 - Right footwell light
W45 - Rear left footwell light
W46 - Rear right footwell light		 30
3 - S3 - Fuse in relay plate fuse holder 5 A - Z20 - Left washer jet heater element
Z21 - Right washer jet heater element		 75x
4 - S4 - Fuse in relay plate fuse holder 5 A - J293 - Radiator fan control unit
J671 - Radiator fan control unit 2		 87
5 - S5 - Fuse in relay plate fuse holder 10 A - E128 - Heated rear left seat switch with regulator
E129 - Heated rear right seat switch with regulator
F189 - Tiptronic switch
G226 - Oil level and oil temperature sender		 15
6 - S6 - Fuse in relay plate fuse holder 5 A - G65 - High-pressure sender
G238 - Air quality sensor		 15
7 - S7 - Fuse in relay plate fuse holder 10 A - E132 - Traction control system switch
F36 - Clutch pedal switch
F47 - Brake pedal switch
J104 - ABS control unit		 15
8 - S8 - Fuse in relay plate fuse holder 5 A - R36 - Telephone transmitter and receiver unit
R86 - Aerial amplifier for mobile telephone		 30
9 - S9 - Fuse in relay plate fuse holder 15 A - J569 - Brake servo relay 30

   

Audi A4 Fitting Locations No.  802 / 27
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
10 - S10 - Fuse in relay plate fuse holder 5 A - E102 - Headlight range control regulator
J431 - Headlight range control, control unit
J668 - Power output module for right headlight
V48 - Left headlight range control motor
V49 - Right headlight range control motor		 15
11 - S11 - Fuse in relay plate fuse holder 10 A - J234 - Airbag control unit
J706 - Seat occupied recognition control unit
K145 - Front passenger side airbag deactivated warning lamp		 15
12 - S12 - Fuse in relay plate fuse holder 10 A - T16 - 16-pin connector, black, diagnostic connector 30
13 - S13 - Fuse in relay plate fuse holder 10 A - J527 - Steering column electronics control unit 30
14 - S14 - Fuse in relay plate fuse holder 10 A - F - Brake light switch 30
15 - S15 - Fuse in relay plate fuse holder 10 A - J285 - Control unit in dash panel insert 30
16 - S16 - Fuse in relay plate fuse holder 5 A - E284 - Garage door operating unit
J530 - Garage door operation control unit		 15
17 - S17 - Fuse in relay plate fuse holder   - Vacant  
18 - S18 - Fuse in relay plate fuse holder   - Vacant  

   

Audi A4 Fitting Locations No.  802 / 28
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
19 - S19 - Fuse in relay plate fuse holder 15 A - E1 - Lighting switch 75x
20 - S20 - Fuse in relay plate fuse holder 15 A - J85 - Alarm system control unit
J344 - Right gas discharge light control unit
M31 - Right headlight dipped beam bulb
V49 - Right headlight range control motor		 56
21 - S21 - Fuse in relay plate fuse holder 15 A - J85 - Alarm system control unit
J343 - Left gas discharge light control unit
J519 - Onboard power supply control unit
M29 - Left headlight dipped beam bulb
V48 - Left headlight range control motor		 56
22 - S22 - Fuse in relay plate fuse holder 15 A - J386 - Driver door control unit
J387 - Front passenger side door control unit		 30
23 - S223 - Fuse on fuse holder 15 A - J388 - Rear left door control unit
J389 - Rear right door control unit		 30
24 - S224 - Fuse on fuse holder 20 A - J393 - Convenience system central control unit 30
25 - S225 - Fuse on fuse holder 30 A - J126 - Fresh air blower control unit 30
26 - S226 - Fuse on fuse holder 30 A - E87 - Operating and display unit for air conditioning system/Climatronic 30
27 - S227 - Fuse on fuse holder 30 A - J345 - Trailer detector control unit 30
28 - S228 - Fuse on fuse holder 20 A - G6 - Fuel system pressurisation pump 87

   

Audi A4 Fitting Locations No.  802 / 29
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
29 - S229 - Fuse on fuse holder 20 A - 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
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		 87
30 - S230 - Fuse on fuse holder 20 A - J245 - Sliding sunroof adjustment control unit 30
31 - S231 - Fuse on fuse holder 15 A - F125 - Multifunction switch
F4 - Reversing light switch
G70 - Air mass meter
G399 - Light detector sensor
J217 - Automatic gearbox control unit
J226-Starter inhibitor and reversing light relay
N110 - Selector lever lock solenoid
T16 - 16-pin connector, black, diagnostic connector
Y7 - Automatic anti-dazzle interior mirror		 15
32 - S232 - Fuse on fuse holder 20 A - J583 - NOx sensor control unit
N30 - Injector, cylinder 1
N31 - Injector, cylinder 2
N32 - Injector, cylinder 3
N33 - Injector, cylinder 4
N83 - Injector, cylinder 5
N84 - Injector, cylinder 6		 87
33 - S233 - Fuse on fuse holder 15 A - U1 - Cigarette lighter 30

   

Audi A4 Fitting Locations No.  802 / 30
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
34 - S234 - Fuse on fuse holder 20 A - G70 - Air mass meter
J299 - Secondary air pump relay
N80 - Activated charcoal filter system solenoid valve 1
N112 - Secondary air inlet valve
N144 - Left electrohydraulic engine mounting solenoid valve
N145 - Right electrohydraulic engine mounting solenoid valve
N156 - Variable intake manifold change-over valve
N220 - Exhaust flap valve
N276 - Fuel pressure regulating valve
Z19 - Lambda probe heater
Z28 - Lambda probe 2 heater
Z29 - Lambda probe 1 heater after catalytic converter
Z30 - Lambda probe 2 heater after catalytic converter
V144 - Fuel system diagnostic pump		 87
35 - S235 - Fuse on fuse holder 30 A - U - socket 30
36 - S236 - Fuse on fuse holder 30 A - J519 - Onboard power supply control unit
V12 -Rear window wiper motor		 75x
37 - S237 - Fuse on fuse holder 30 A - J519 - Onboard power supply control unit
V11 - Headlight washer system pump		 75x
38 - S238 - Fuse on fuse holder 15 A - G303 - Interior monitor send and receive module 1
H12 - Alarm horn
J393 - Convenience system central control unit		 30
39 - S239 - Fuse on fuse holder 20 A - J402 - Navigation operating electronics control unit
R - Radio
R12 - Amplifier
T8 - 8-connector, black, radio connector III		 30

   

Audi A4 Fitting Locations No.  802 / 31
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
40 - S240 - Fuse on fuse holder 25 A - H2 - Treble tone horn
H7 - Bass tone horn
J4 - Dual tone horn relay		 30
41 - S241 - Fuse on fuse holder 30 A - J364 - Auxiliary heater control unit
R64 - Remote control receiver for auxiliary heating		 30
42 - S242 - Fuse on fuse holder 25 A - J104 - ABS control unit 30
43 - S243 - Fuse on fuse holder 15 A - J220 - Motronic control unit
J363 - Current supply relay for Simos control unit
J623 - Engine control unit
N18 - Exhaust gas recirculation valve		 15
44 - S244 - Fuse on fuse holder 30 A - E87 - Operating and display unit for air conditioning system/Climatronic
J215 - Heated rear left seat control unit
J255 - Climatronic control unit		 30

   

Audi A4 Fitting Locations No.  802 / 32


AUDI A4 2003 Position of fuses, fuse holder, from August 2004

Position of fuses, fuse holder, from August 2004
   
Location:
Driver side dash panel
Fuse colours
35 A -  green-blue
30 A -  green
25 A -  white
20 A -  yellow
15 A -  blue
10 A -  red
7,5 A -  brown
5 A -  beige
  Note:
From fuse number 23 upwards the fuses in the fuse holder are designated as 223 in the Current Flow Diagram
 
AUDI A4 2003 Position of fuses, fuse holder, from August 2004Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 33
   
Fuse location from August 2004:
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
1 - S1 - Fuse in relay plate fuse holder 10 A - J255 - Climatronic control unit 30
2 - S2 - Fuse in relay plate fuse holder 5 A - W9 - Left footwell light
W10 - Right footwell light
W45 - Rear left footwell light
W46 - Rear right footwell light		 30
3 - S3 - Fuse in relay plate fuse holder 5 A - Z20 - Left washer jet heater element
Z21 - Right washer jet heater element		 75x
4 - S4 - Fuse in relay plate fuse holder 5 A - J293 - Radiator fan control unit
J671 - Radiator fan control unit 2		 87
5 - S5 - Fuse in relay plate fuse holder 10 A - E149 - Rear roller blind switch
E272 - Function selection switch 2
F189 - Tiptronic switch
G226 - Oil level and oil temperature sender
J262 - Rear roller blind control unit
J401 - Navigation system with CD drive control unit
J446 - Parking aid control unit		 15
6 - S6 - Fuse in relay plate fuse holder 5 A - G65 - High-pressure sender
G238 - Air quality sensor		 15
7 - S7 - Fuse in relay plate fuse holder 10 A - E132 - Traction control system switch
F36 - Clutch pedal switch
F47 - Brake pedal switch
J104 - ABS control unit		 15
8 - S8 - Fuse in relay plate fuse holder 5 A - R36 - Telephone transmitter and receiver unit
R86 - Aerial amplifier for mobile telephone		 30
9 - S9 - Fuse in relay plate fuse holder 15 A - J569 - Brake servo relay 30

   

Audi A4 Fitting Locations No.  802 / 34
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
10 - S10 - Fuse in relay plate fuse holder 5 A - E102 - Headlight range control regulator
J431 - Headlight range control, control unit
J668 - Power output module for right headlight
V48 - Left headlight range control motor
V49 - Right headlight range control motor		 15
11 - S11 - Fuse in relay plate fuse holder 10 A - J234 - Airbag control unit
J706 - Seat occupied recognition control unit
K145 - Front passenger side airbag deactivated warning lamp		 15
12 - S12 - Fuse in relay plate fuse holder 10 A - T16 - 16-pin connector, black, diagnostic connector 30
13 - S13 - Fuse in relay plate fuse holder 10 A - J527 - Steering column electronics control unit 30
14 - S14 - Fuse in relay plate fuse holder 10 A - F - Brake light switch 30
15 - S15 - Fuse in relay plate fuse holder 10 A - J285 - Control unit in dash panel insert
J401 - Navigation system with CD drive control unit		 30
16 - S16 - Fuse in relay plate fuse holder 5 A - E284 - Garage door operating unit
J530 - Garage door operation control unit		 15
17 - S17 - Fuse in relay plate fuse holder 10 A - G397 - Rain and light detector sensor
J446 - Parking aid control unit
J502 - Tyre pressure monitor control unit		 30
18 - S18 - Fuse in relay plate fuse holder 5 A - V318 - Left dynamic cornering light control motor 15

   

Audi A4 Fitting Locations No.  802 / 35
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
19 - S19 - Fuse in relay plate fuse holder 15 A - L22 - Left fog light bulb
L23 - Right fog light bulb		 55
20 - S20 - Fuse in relay plate fuse holder   - Vacant  
21 - S21 - Fuse in relay plate fuse holder   - Vacant  
22 - S22 - Fuse in relay plate fuse holder 15 A - J386 - Driver door control unit
J387 - Front passenger side door control unit		 30
23 - S223 - Fuse on fuse holder 15 A - J388 - Rear left door control unit
J389 - Rear right door control unit		 30
24 - S224 - Fuse on fuse holder 20 A - J393 - Convenience system central control unit 30
25 - S225 - Fuse on fuse holder 30 A - J126 - Fresh air blower control unit 30
26 - S226 - Fuse on fuse holder 30 A - J9 - Heated rear window relay 30
27 - S227 - Fuse on fuse holder 30 A - J345 - Trailer detector control unit 30
28 - S228 - Fuse on fuse holder 20 A

30 A		 - G6 - Fuel system pressurisation pump
J538 - Fuel pump control unit
G6 - Fuel system pressurisation pump ¹)
J538 - Fuel pump control unit ¹)		 87

  Note:
¹) for models with engine code BNS only
   

Audi A4 Fitting Locations No.  802 / 36
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
29 - S229 - Fuse on fuse holder   - Vacant  
30 - S230 - Fuse on fuse holder 20 A - J245 - Sliding sunroof adjustment control unit 30
31 - S231 - Fuse on fuse holder 15 A - F4 - Reversing light switch
G70 - Air mass meter
G399 - Light detector sensor
J217 - Automatic gearbox control unit
N110 - Selector lever lock solenoid
T16 - 16-pin connector, black, diagnostic connector
Y7 - Automatic anti-dazzle interior mirror		 15
32 - S232 - Fuse on fuse holder 15 A - U10-Trailer socket ²) 75x
33 - S233 - Fuse on fuse holder 15 A
20 A		 - U1 - Cigarette lighter
U1 - Cigarette lighter ¹)		 30
34 - S234 - Fuse on fuse holder 30 A
20 A		 - U5 - 12 V socket
U5 - 12 V socket ¹)		 30
35 - S235 - Fuse on fuse holder 30 A
20 A		 - U - socket
U-Socket ¹)		 30
36 - S236 - Fuse on fuse holder 30 A - J519 - Onboard power supply control unit
V12 -Rear window wiper motor		 75x
37 - S237 - Fuse on fuse holder 30 A - J519 - Onboard power supply control unit
V11 - Headlight washer system pump		 75x

  Notes:
t  ¹) applicable from February 2005
t  ²) applicable from model year 2006
   

Audi A4 Fitting Locations No.  802 / 37
   
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
38 - S238 - Fuse on fuse holder 15 A - G303 - Interior monitor send and receive module 1
H12 - Alarm horn
J393 - Convenience system central control unit		 30
39 - S239 - Fuse on fuse holder 20 A - J401 - Navigation system with CD drive control unit
J503 - Control unit with display for radio and navigation system
T8 - 8-connector, black, radio connector III
R - Radio
R12 - Amplifier
R146 - Satellite radio		 30
40 - S240 - Fuse on fuse holder 25 A - H2 - Treble tone horn
H7 - Bass tone horn
J4 - Dual tone horn relay		 30
41 - S241 - Fuse on fuse holder 30 A - J364 - Auxiliary heater control unit
R64 - Remote control receiver for auxiliary heating		 30
42 - S242 - Fuse on fuse holder 25 A - J104 - ABS control unit 30
43 - S243 - Fuse on fuse holder 15 A - G70 - Air mass meter
G212 - Exhaust gas recirculation potentiometer
J363 - Current supply relay for Simos control unit
J623 - Engine control unit
J757 - Engine component current supply relay
N18 - Exhaust gas recirculation valve		 15
44 - S244 - Fuse on fuse holder 30 A
35 A		 - J255 - Climatronic control unit ¹)
J255 - Climatronic control unit ²)		 30

  Notes:
t  ¹) applicable up to model year 2005
t  ²) applicable from model year 2006
   

Audi A4 Fitting Locations No.  802 / 38


AUDI A4 2003 Position of fuses, fuse holder for special vehicle - taxi

Position of fuses, fuse holder for special vehicle - taxi
   
Location:
Driver side dash panel
Fuse location taxi
1 -  Taxi meter and alarm system fuse -S183-
2 -  Alarm system fuse -S57-
3 -  Taxi meter fuse -S182-
9 -  Two-way radio fuse -S55-
10 -  Socket 1 fuse -S184-
¹) applicable from model year 2006
 
AUDI A4 2003 Position of fuses, fuse holder for special vehicle - taxiUnlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  802 / 39


AUDI A4 2003 Position of fuses, fuse holder for special vehicle - police

Position of fuses, fuse holder for special vehicle - police
   
Location:
Driver side dash panel
Fuse location police
1 -  Special vehicle fuse 1 -S291-
2 -  Special vehicle fuse 2 -S292-
3 -  Special vehicle fuse 3 -S293-
4 -  Special vehicle fuse 4 -S294-
5 -  Special vehicle fuse 5 -S295-
6 -  Special vehicle fuse 6 -S296-
7 -  Special vehicle fuse 7 -S297-
8 -  Special vehicle fuse 8 -S298-
¹) applicable from February 2005
²) applicable from model year 2006
 
AUDI A4 2003 Position of fuses, fuse holder for special vehicle - policeUnlock Lifetime Access for This Car.


AUDI A4 2003 Control units overview

Control units overview
   
AUDI A4 2003 Control units overviewUnlock Lifetime Access for This Car.
1 -  Heated windscreen control unit -J505-
q   Location → page 804/4
2 -  CD changer -R41-
q   Location → page 804/13
3 -  Fresh air blower control unit -J126-
q   Location ⇒ page → 804/7
4 -  Headlight range control, control unit -J431-
q   Location → page 804/7
5 -  Radio -R-
q   not for navigation system
q   Location → page 804/11
5 -  Navigation operating electronics control unit -J402-
q   for navigation system RNS-D only
q   Location → page 804/11
5 -  Control unit with display for radio and navigation system -J503-
q   for navigation system RNS-Low only
q   Location → page 804/13

   

Audi A4 Fitting Locations No.  804 / 2
   
AUDI A4 2003 Control units overviewUnlock Lifetime Access for This Car.
5 -  Navigation system with CD drive control unit -J401-
q   Location for navigation system NS-Low → page 804/12
q   Location for navigation system RNS-E → page 804/12
6 -  Telephone and telematics control unit, telematics -J526-
q   Location → page 804/14
6 -  Language input control unit -J507-
q   Location → page 804/14
7 -  Steering column electronics control unit -J527-
q   Location → page 804/8
8 -  Front passenger side door control unit -J387-
q   Location → page 804/16
9 -  Display control unit in dash panel insert -J285-
q   Location → page 804/8
10 -  Airbag control unit -J234-
q   Location → page 804/9
11 -  Driver door control unit -J386-
q   Location → page 804/16

   

Audi A4 Fitting Locations No.  804 / 3
   
AUDI A4 2003 Control units overviewUnlock Lifetime Access for This Car.
12 -  Convenience system central control unit -J393-
q   Location → page 804/15
13 -  Onboard power supply control unit -J519-
q   Location → page 804/9
14 -  Motronic control unit -J220-
14 -  Diesel direct injection system control unit -J248-
14 -  Simos control unit -J361-
q   Location → page 804/4
15 -  Automatic gearbox control unit -J217-
q   not for models with multitronic®
q   Location → page 804/5
16 -  ABS control unit -J104-
q   Location → page 804/6
17 -  Automatic gearbox control unit -J217-
q   for models with multitronic® only
q   Location → page 804/5
18 -  Radiator fan control unit -J293-
q   Location → page 804/6

   

Audi A4 Fitting Locations No.  804 / 4
Heated windscreen control unit -J505-
   
Location:
On right in plenum chamber, next to battery


AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-
 
AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-Unlock Lifetime Access for This Car.
Location:
On electronics box in plenum chamber
 
AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 5
   


AUDI A4 2003 Automatic gearbox control unit -J217-

Automatic gearbox control unit -J217-
not for models with multitronic®
Location:
 
AUDI A4 2003 Automatic gearbox control unit -J217-Unlock Lifetime Access for This Car.
In electronics box in plenum chamber
for models with multitronic® only
Location:
In gearbox
 
AUDI A4 2003 Automatic gearbox control unit -J217-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 6


AUDI A4 2003 ABS control unit -J104-

ABS control unit -J104-
   
Location:
In engine compartment, on front left hydraulic unit


AUDI A4 2003 Radiator fan control unit -J293-

Radiator fan control unit -J293-
 
AUDI A4 2003 Radiator fan control unit -J293-Unlock Lifetime Access for This Car.
Location:
on radiator fan
 
AUDI A4 2003 Radiator fan control unit -J293-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 7


AUDI A4 2003 Fresh air blower control unit -J126-

Fresh air blower control unit -J126-
   
Location:
Behind the glove box, in fresh air blower


AUDI A4 2003 Headlight range control, control unit -J431-

Headlight range control, control unit -J431-
 
AUDI A4 2003 Headlight range control, control unit -J431-Unlock Lifetime Access for This Car.
Location:
Behind the glove box
 
AUDI A4 2003 Headlight range control, control unit -J431-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 8


AUDI A4 2003 Steering column electronics control unit -J527-

Steering column electronics control unit -J527-
   
Location:
On steering column


AUDI A4 2003 Display control unit in dash panel insert -J285-

Display control unit in dash panel insert -J285-
 
AUDI A4 2003 Display control unit in dash panel insert -J285-Unlock Lifetime Access for This Car.
Location:
In the dash panel behind the display unit
 
AUDI A4 2003 Display control unit in dash panel insert -J285-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 9


AUDI A4 2003 Airbag control unit -J234-

Airbag control unit -J234-
   
Location:
On centre tunnel, under handbrake lever


AUDI A4 2003 Onboard power supply control unit -J519-

Onboard power supply control unit -J519-
 
AUDI A4 2003 Onboard power supply control unit -J519-Unlock Lifetime Access for This Car.
Location:
Behind driver's storage compartment
 
AUDI A4 2003 Onboard power supply control unit -J519-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 10


AUDI A4 2003 Trailer detector control unit -J345-

Trailer detector control unit -J345-
   
Location:
In left luggage compartment, behind side trim


AUDI A4 2003 Parking aid control unit -J446-

Parking aid control unit -J446-
 
AUDI A4 2003 Parking aid control unit -J446-Unlock Lifetime Access for This Car.
Location:
In left luggage compartment, behind side trim, on apron
 
AUDI A4 2003 Parking aid control unit -J446-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 11
   


AUDI A4 2003 Navigation operating electronics control unit -J402-

Navigation operating electronics control unit -J402-
for navigation system RNS-D only
Location:
in centre console
 
AUDI A4 2003 Navigation operating electronics control unit -J402-Unlock Lifetime Access for This Car.


AUDI A4 2003 Radio -R-

Radio -R-
not for navigation system
Location:
in centre console
 
AUDI A4 2003 Radio -R-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 12
   


AUDI A4 2003 Navigation system with CD drive control unit -J401-

Navigation system with CD drive control unit -J401-
For navigation system NS-Low only
Location:
 
AUDI A4 2003 Navigation system with CD drive control unit -J401-Unlock Lifetime Access for This Car.
in centre console
For navigation system RNS-E only
Location:
in centre console
 
AUDI A4 2003 Navigation system with CD drive control unit -J401-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 13
   


AUDI A4 2003 Control unit with display for radio and navigation system -J503-

Control unit with display for radio and navigation system -J503-
for navigation system RNS-Low only
Location:
in centre console


AUDI A4 2003 CD changer -R41-

CD changer -R41-
 
AUDI A4 2003 CD changer -R41-Unlock Lifetime Access for This Car.
Location:
In glove compartment
 
AUDI A4 2003 CD changer -R41-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 14
   


AUDI A4 2003 Telephone and telematics control unit, telematics -J526-

Telephone and telematics control unit, telematics -J526-
For models with telematics only
Location:
in electronics box under front passenger seat
 
AUDI A4 2003 Telephone and telematics control unit, telematics -J526-Unlock Lifetime Access for This Car.


AUDI A4 2003 Language input control unit -J507-

Language input control unit -J507-
For models with telematics only
Location:
in electronics box under front passenger seat
 
AUDI A4 2003 Language input control unit -J507-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 15


AUDI A4 2003 Convenience system central control unit -J393-

Convenience system central control unit -J393-
   
Location:
on sill, front left
 
AUDI A4 2003 Convenience system central control unit -J393-Unlock Lifetime Access for This Car.

Audi A4 Fitting Locations No.  804 / 16


AUDI A4 2003 Driver door control unit -J386-

Driver door control unit -J386-
   
Location:
In window regulator motor integrated


AUDI A4 2003 Front passenger side door control unit -J387-

Front passenger side door control unit -J387-
 
AUDI A4 2003 Front passenger side door control unit -J387-Unlock Lifetime Access for This Car.
Location:
In window regulator motor integrated
 
AUDI A4 2003 Front passenger side door control unit -J387-Unlock Lifetime Access for This Car.
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