Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1999 Audi A8 BaseFACTORY OEM SERVICE PROCEDURE
Fuse Panel Identification
For fuse position within panel, see Fig 1. For fuse position number, amp rating and description of circuits protected, see FUSE IDENTIFICATION (FUSE PANEL) table.
FUSE IDENTIFICATION (FUSE PANEL)
| Fuse No. | Amp Rating | Circuits Protected | ||||
|---|---|---|---|---|---|---|
| Fuse Carrier Station No. 1 (Black) | ||||||
| 1 | 5 | Lamp Control Module, Left Parking Light, Left Front Side Marker Light | ||||
| 2 | 5 | Lamp Control Module, Right Parking Light, Right Front Side Marker Light, Tail Lights, Licence Plate Lights | ||||
| 3 | 15 | Lamp Control Module | ||||
| 4 | 15 | Lamp Control Module | ||||
| 5 | 10 | Left High Beam Headlight | ||||
| 6 | 10 | Fog Light Relay, High Beam Indicator Light, Right High Beam Headlight | ||||
| 7 | 15 | Emergency Flasher Switch | ||||
| 8 | 15 | Duel Horns | ||||
| 9 | 5 | Instrument Cluster, Solar Cell Separation Relay (1) | ||||
| 9 | 5 | Data Link Connector, Selector Lever Light Relay | ||||
| 10 | 25 | Windshield Wiper Motor(1) | ||||
| 10 | 25 | Windshield Wiper Washer Switch, Windshield Wiper Washer Intermittent Relay | ||||
| Fuse Carrier Station No. 2 (Red) | ||||||
| 1 | 10 | Outside Mirrors | ||||
| 2 | N/A | Not Used | ||||
| 3 | 5 | A/C Control Head, Cigarette Lighter, Fog Light Relay, Glove Compartment Light, Instrument Cluster, Instrument Cluster Combination Processor, Tail Lights, Ashtray Light, Rear Ashtray Light, Multi-Function Transmission Range Switch | ||||
| 3 | 5 | Selector Lever Light Relay Protection Diode, Interior Lights System, Light Switch (2) | ||||
| 4 | 5 | First, Second and Third Speed Coolant Fan Control Relays | ||||
| 4 | 5 | Air Quality Sensor (2) | ||||
| 5 | 15 | Fog Light Switch, Rear Fog Light Switch | ||||
| 6 | 30 | Rear Window Defogger Switch | ||||
| 7 | N/A | Not Used | ||||
| 8 | 10 | Emergency Flasher Switch | ||||
| 9 | 10 | Brake Light Switch, Vacuum Pump Valve, Transmission Control Module | ||||
| 10 | 5 | Washer Nozzle Heaters | ||||
| Fuse Carrier Station No. 3 (Yellow) | ||||||
| 1 | 15 | Data Link Connector, Instrument Cluster, Lamp Control Module, Steering Wheel Control Module, Radio, Headlight Beam Adjustment Motors, Headlight Beam Adjustment Control Module, Air Bag Malfunction Indicator Lamp, ABS Malfunction Indicator Lamp, Traction Control Indicator Lamp | ||||
| 2 | 10 | Telephone Transceiver (2) | ||||
| 3 | 15 | Cigarette Lighter | ||||
| 4 | 5 | Instrument Cluster Combination Processor | ||||
| 5 | 15 | A/C Control Head, Interior Temperature Sensor, Instrument Cluster, Solar Cell Separation Relay, Steering Wheel Control Module | ||||
| 6 | 10 | Multi-Function Transmission Range Switch, Shift Lock Solenoid | ||||
| 7 | 15 | Coolant Pump, Heat regulating Valves (1) | ||||
| 8 | 15 | Coolant Pump (1) | ||||
| 9 | 10 | Steering Wheel Control Module | ||||
| 10 | N/A | Not Used | ||||
| Fuse Carrier Station No. 4 (Blue) | ||||||
| 1 | 15 | Fuel Pump | ||||
| 2 | N/A | Not Used | ||||
| 3 | 20 | HO2 Sensors Before TWC, MAF Sensor | ||||
| 4 | 15 | HO2 Sensors After TWC | ||||
| 5 | N/A | Not Used | ||||
| 6 | N/A | Not Used | ||||
| 7 | N/A | Not Used | ||||
| 8 | N/A | Not Used | ||||
| 9 | 5 | ABS Control Module | ||||
| 10 | 10 | Brake Light Switch (Quattro) (1) | ||||
| 10 | 10 | ABS Control Module, Anti-Slip Control Switch (W/FWD) | ||||
| Fuse Carrier Station No. 5 (Brown) | ||||||
| 1 | 10 | Rear Fog Light Switch, Front Interior Light, Rear Reading Lights, Central Locking/Alarm System/Interior Light Delay Control Module | ||||
| 2 | 10 | Right & Left Power Windows Control Module, Mirror Adjustment Switch, Mirror Fold-Away Function Control Module, Memory Program Switch, Rear Headrest Adjustment Switch, Right & Left "B" Pillar Micro Switches, Front Heated Seat Switches | ||||
| 3 | 10 | Luggage Compartment Release Switch, Right & Left Make Up Mirror Lights, Entry/Floor Light Relay, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch, Mirror Memory Control Module, Memory Program Switch, Rear Fog Light Switch | ||||
| 4 | 10 | Central Locking/Alarm System/Interior Lights Delay Control Module, Rear Window Shade Switch, Automatic Dimmer Inside Mirror | ||||
| 5 | 15 | Central Locking/Alarm System/Interior Lights Delay Control Module, Interior Monitoring Sensors Control Module, Driver's Side Interior Lock Switch | ||||
| 6 | 20 | Power Sunroof Control Module | ||||
| 7 | 15 | Window Lockout Switch | ||||
| 7 (2) | 15 | Right & Left Heated Door Lock Control Module | ||||
| 8 | 10 | Memory Program Switch, Mirror Memory Control Module (1) | ||||
| 9 | 20 | Steering Column/Belt Height Control Module, Steering Column Adjustment Switch | ||||
| 9 | 20 | Steering Column Adjustment Control Module (2) | ||||
| 10 | 20 | Front Heated Seat Switches, Rear Window Shade Control Module | ||||
|
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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