Audi A4 B7 (2004-2009) – Fuse Box Diagrams

Hi-ya!,at this time. Here you will discover a description of fuses and relays Audi A4 B7 (2004-2009) – fuse box

Include with pictures of block diagrams as well as their locations. Highlighted the cigarette lighter fuse (as the most common thing people look for).
Get recommendations on Service fuses, upgrading a fuse, and more.

Audi A4 B7 (8E, 8H) (2004-2008) – fuse box diagram

Year of production: 2004, 2005, 2006, 2007, 2008, 2009.

Cigarette lighter fuse (power socket) on Audi A4 B7 (2004-2009) is fuse 33 in the fuse box in the passenger compartment.

Fuse box in passenger compartment

Location of the fuse box
The Audi A4 B7 fuse box is located on the left side of the dashboard:

Audi A4 B7 2004 2009 Fuse Box Diagrams

To access it, open the left side door and remove the dashboard side cover by pressing down on it.

The scheme of the fuse box

Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
1 10 A. Air conditioning controller;

Climatronic.

2 5A Footwell lights
3 5A Heated washer nozzles
4 5A Cooling fan control unit
5 10 A. Rear roller blind;

Multi-function switch;

Oil level sensor;

Oil temperature sensor;

Navigation system;

Parking assist controller.

6 5A Air quality sensor;

Climatronic;

Heated front seats;

Air conditioning high pressure sensor;

TCS / ESP button,

7 10 A. Traction control switch;

Clutch switch;

ABS controller;

Brake pedal switch.

8 5A Telephone;

Telephone amplifier.

9 15A Brake servo relay
10 5A Headlamp range control
11 5A Airbag control unit;

Airbag warning lamp.

12 10 A. Diagnostic connector
13 10 A. Control unit, steering column electronics
14 10 A. Brake light switch
15 10 A. Control unit with display in the dashboard insert;

Navigation system;

CD player.

16 5A Garage door opener
17 10 A. Rain sensor;

Daytime running system;

Parking assist controller.

18 5A
19 15A Fog lights
twenty Not used
21 Not used
22 15A Front left door control unit;

Front right door control unit.

23 15A Rear left door control unit;

Rear right door control unit.

24 20A The electrician of the comfort system
25 30A Blower;

Air conditioning.

26 30A Heated rear window
27 30A Trailer detection control unit
28 20A Fuel pump
29 Not used
thirty 20A Sliding roof controller
31 15A Reverse light switch;

Mass flow meter;

Automatic gearbox control unit;

Light sensor;

Starter relay;

Selector handle lock solenoid;

Diagnostic connector;

Automatic anti-glare rearview mirror.

32 Not used
33 15A Lighter
34 30A 12V socket
35 30A Accessory socket
36 30A Power control unit;

Rear wiper motor.

37 30A Power controller;

Headlight washer pump.

38 15A Alarm horn;

Comfort system electrics;

Interior monitoring

39 20A Radio sound amplifier
40 25A Horn
41 Additional heater control unit;

Remote control receiver.

42 30A ABS control unit
43 15A Mass air flow meter;

Engine management;

EGR;

Main relay;

Engine control unit;

Engine control unit relay.

44 30A Climate control unit

Fuse and relay box №1.

The scheme of the fuse box.

1659763281 32 Audi A4 B7 2004 2009 Fuse Box Diagrams

legend.

No Amperes [A] Description
AND Not used
b 40A Additional heater
C. 60A Additional heater
R1 Special vehicles
R2 Low-power heating relay
R3 High-performance heating relay

Fuse and relay box No. 2 in the passenger compartment

The scheme of the fuse box

1659763281 908 Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
AND 10 A. Rear roller blind
B1 10 A. 12V socket
B2 10 A. Rear roller blind
C. unused
D 30A Window regulator
E1 30A Driver seat adjustment
E2 10 A. Driver seat adjustment
F. 30A Window regulator
g 30A Trailer towing module
R1 Fuel pump relay;

Additional fuel pump relay.

R2 Servotronic control unit
R3 Starter motor relay
R4 Starter motor relay;

Brake servo relay.

R5 Heated rear window relay
R6 X contact relief relay
R7 Not used
R8 Horn relay
R9 Not used

Fuse and relay box No. 3 in the passenger compartment

The scheme of the fuse box

1659763281 579 Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
AND Not used
B 10 A. Pest deterrent system
C. Not used
D Not used
E. 40A Special vehicles
F1 10 A. Special vehicles
F2 40A Cooling fan (also 60A)
G. 30A Cooling fan (40A and 60A also used)
H. 40A ABS control unit
R1 Not used
R2 Not used
R3 Special vehicles
R4A Special vehicles
R4B Taxi package

Relay box in passenger compartment

The scheme of the relay box

1659763281 127 Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
AND Not used
B Not used
B1 Not used
B2 Not used
R1 Alarm system;

Traffic lights;

High beam headlamp relay.

R2 Special vehicles;

Taxi package.

R3 Alarm system control unit
or
siren relay
R4 Alarm system control unit
or
siren relay
R5 Alarm relay;

Right turn signal
or
flasher relay

R6 Alarm relay
Left turn signal
or
Not used

Fuse box No. 2 in the passenger compartment

The scheme of the fuse box

1659763281 108 Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
1 10 A. Special vehicles
or
Taxi package
2 25A Special vehicles
or
alarm system
3 10 A. Special vehicles
or
Taxi package
4 Special vehicles
5 Special vehicles
6 Special vehicles
7 Special vehicles
8 Special vehicles
9 5A Special vehicles
or
radio
10 10 A. Special vehicles
or
12V socket

Fuse box in the engine compartment of the Audi A4 (B7)

The scheme of the fuse box

1659763281 291 Audi A4 B7 2004 2009 Fuse Box Diagrams

No Amperes [A] Description
AND 15A Engine electronics
B1 Not used
B2 40A Secondary air injection pump
C. Not used
D 20A Engine control unit
E. 15A Injectors
F. Not used
G. 15A Engine electronics
R1a Not used
R1b Not used
R2 Main Relay
R3 Secondary air pump relay
R4 Not used

This applies to motor models:

2004, 2005, 2006, 2007 and 2008 Audi A4 B7 Petrol (1.6, 1.8T, 2.0, 3.2) and Diesel (1.9 TDI, 2.5 TDI, 2.7 TDI and 3.0 TDI), S4, RS4.

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