The Audi A4/S4 8E/8H is a popular luxury car that was produced from 2005 to 2008. Like all cars, it has a fuse box that houses the electrical fuses for the car’s various systems. If you are having electrical problems with your Audi A4/S4 8E/8H, it can be helpful to consult the fuse box diagram to see which fuse may be blown.
In this blog post, I will provide you with the fuse box locations and diagrams for the Audi A4/S4 8E/8H. I will also discuss how to troubleshoot electrical problems using the fuse box diagrams.
By understanding the fuse box locations and diagrams for your Audi A4/S4 8E/8H, you can troubleshoot electrical problems more easily. This can save you time and money in the long run.
Table of Contents
Instrument Panel
| Fuse Number | Fuse Amp. Rating | Function/Component |
|---|---|---|
| 1 | 10A | Climatronic Control Module |
| 2 | 5A | Left Footwell Light Right Footwell Light |
| 3 | 5A | Left Washer Nozzle Heater Right Washer Nozzle Heater Left Rear Footwell Light Right Rear Footwell Light |
| 4 | 5A | Coolant Fan Control (FC) Control Module Coolant Fan Control (FC) Control Module 2 |
| 5 | 10A | Rear Window Shade Switch Function Selector Switch II Tiptronic Switch Oil Level Thermal Sensor Rear Window Shade Control Module Navigation System with CD Drive Control Module Parking Aid Control Module |
| 6 | 5A | High Pressure Sensor Sensor for air quality |
| 7 | 10A | Anti-Slip Control Switch Clutch Pedal Switch Brake Pedal Switch ABS Control Module |
| 8 | 5A | Telephone Transceiver Telephone Amplifier |
| 9 | 15A | Brake Booster Relay |
| 10 | 5A | Headlamp Adjuster Headlamp Range Control Module Headlamp Range/Comering Lamp Control Module Left Headlamp Beam Adjusting Motor Right Headlamp Beam Adjusting Motor Right Dynamic Cornering Light Motor |
| 11 | 5A | Airbag Control Module Warning Lamp for airbag off, passenger side |
| 12 | 10A | 16 pin connector, black, diagnostic connector |
| 13 | 10A | Steering Column Electronic Systems Control Module |
| 14 | 10A | Brake Light Switch |
| 15 | 10A | Instrument Cluster Control Module Navigation System with CD Drive Control Module |
| 16 | 5A | Garage Door Opener Control Head Garage Door Opener Control Module |
| 17 | 10A | Rain/Light Recognition Sensor Parking Aid Control Module Tire Pressure Monitoring Control Module |
| 18 | 5A | Left Dynamic Cornering Light Motor |
| 19 | 10A | Left Lront Fog Lamp Right Front Fog Lamp |
| 20 | – | Not used |
| 21 | – | Not used |
| 22 | 15A | Drivers Door Control Module Front Passenger’s Door Control Module |
| 23 | 15A | Left Rear Door Control Module Right Rear Door Control Module |
| 24 | 20A | Comfort System Central Control Module |
| 25 | 30A | Fresh Air Blower Control Module |
| 26 | 30A | Rear Window Defogger Relay |
| 27 | 30A | Towing Recognition Control Module |
| 28 | 20A | Transfer Fuel Pump (FP) Fuel Pump (FP) Control Module |
| 29 | – | Not used |
| 30 | 20A | Power Sunroof Control Module |
| 31 | 15A | Back-Up Light Switch Mass Air Flow (MAF) Sensor Light Recognition Sensor Starting Interlock Relay Transmission Control Module (ICM) |
| 32 | 15A | Trailer Socket |
| 33 | 15A/20A | Cigarette lighter |
| 34 | 20A/30A | 12V Socket |
| 35 | 20A/30A | Socket |
| 36 | 30A | Vehicle Electrical System Control Module Rear Window Wiper Motor |
| 37 | 30A | Vehicle Electrical System Control Module Headlamp Washer Pump |
| 38 | 15A | Radar Interior Monitoring Control Module 1 Alarm Horn Comfort System Central Control Module 8 pin Connector, black, radio connector III |
| 39 | 20A | Radio Amplifier |
| 40 | 25A | High Tone Horn Low Tone Horn Horn Relay |
| 41 | 30A | Auxiliary Heater Control Module Auxiliary Heater Radio Receiver |
| 42 | 25A | ABS Control Module |
| 43 | 15A | Engine Timing Mass Air Flow (MAF) Sensor EGR Potentiometer SIMOS Control Module Power Supply Relay Engine Control Module (ECM) Engine Component Power Supply Relay EGR Vacuum Regulator Solenoid Valve |
| 44 | 30A | Climatronic Control Module |
Connector station – Right A-pillar
| Fuse Number | Fuse Amp. Rating | Circuit Protected |
|---|---|---|
| E | 30A | Power Seat (with manual seats with power lumbar) |
| E | 10A | Power Seat (with power seats) |
Relay Panels
Relay panel (4-position) with threaded connection
| Fuse Number | Fuse Amp. Rating | Circuit Protected |
|---|---|---|
| F | 10A/40A/60A | Fuse (Driver Fan training vehicle) (Not for Engine code BBK, BHF) Coolant Fan Fuse (Engine code BBK, BHF, BNS, BKN) |
| G | 30A/40A/60A | Radiator After run Fuse (Engine code BBK, BHF, BNS, BKN) Coolant Fan Fuse (Not for Engine code BKN, BBK, BHF) |
| H | 40A | ABS Control Module Fuse 1 |
| 3 | NG Engine Throttle Relay 1 (not applicable to USA/CDN models) | |
| 4 | NG Engine Throttle Relay 2 (not applicable to USA/CDN models) | |
| 4 | Alarm-On/Hands-free Control Module (not applicable to USA/CDN models) |
Relay panel (9-position)
| Fuse Number | Fuse Amp. Rating | Circuit Protected |
|---|---|---|
| A | 10A | Rear Shade Circuit Breaker (Right) |
| B | 10A | Rear Shade Circuit Breaker (Left) |
| D | 30A | Power Windows Fuse 2 |
| E | 10A | Driver’s Power Seat Adjustment Circuit Breaker 2 |
| E | 10A | Driver’s Power Seat Adjustment Circuit Breaker 2 (Lumbar Support Adjustment) |
| F | 30A | Power Windows Fuse |
| G | 30A | Trailer Circuit Breaker |
| 1 | Fuel Pump (FP) Relay | |
| 2 | Servotronic Control Module | |
| 3 | Starter Relay 2 (For engine code AUK, BKH, BNS) | |
| 4 | Starter Relay 2 (For engine code AUK, BKH, BNS) Brake Booster Relay (Not applicable for engine code AUK, BKH) | |
| 5 | Rear Window Defogger Relay | |
| 6 | Load Reduction Relay | |
| 8 | Horn Relay | |
| 4 | Brake Booster Relay (Not applicable for engine code AUK, BKH) |
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