The Audi A8 (D4) is a full-size luxury car produced by the German automaker Audi from 2010 to 2017. The fourth-generation Audi A8 (D4) is first introduced in 2009 at the Frankfurt Motor Show and is built on the Volkswagen Group MLB platform. The A8 (D4) is designed with advanced features, including lightweight construction, Quattro all-wheel drive, and cutting-edge technology. The car is known for its comfortable ride, refined driving dynamics, and high-tech gadgets.
One of the essential aspects of the Audi A8 (D4) is its electrical system, which includes the fuse box and relay. The car’s electrical system controls all the vital functions of the vehicle, such as lighting, air conditioning, and engine management. The Audi A8 (D4) has several electrical components that make up the fuse box and relay, and understanding their locations is crucial for proper maintenance and troubleshooting.
Fuse Box and Relay Diagrams
The Audi A8 (D4) has two fuse boxes: one in the cabin and one in the engine compartment. The fuse box in the cabin is located on the passenger side of the dashboard, while the engine compartment fuse box is on the right side of the engine bay. The cabin fuse box contains fuses for various systems, including the lighting, air conditioning, and infotainment systems. The engine compartment fuse box contains fuses for the engine and transmission control modules, fuel pump, and other engine-related components.
The A8 (D4) also has several relays that control various electrical components, including the headlights, windshield wipers, and power windows. The relay panel is located in the driver’s side kick panel, and it contains several relays that are crucial to the car’s functionality. Understanding the locations of these relays and fuses is essential for proper maintenance and troubleshooting of the car’s electrical system. In case of any electrical problem, checking the fuses and relays should be the first step in identifying the issue.
(2010-2017) Audi A8 (D4) fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
Audi A8 (D4) 2010-2017 Fuse Location, Instrument Panel left
Fuses that have blown will have metal strips that have burned through.
The fuses are located on the left and right front sides of the cockpit and in the luggage compartment behind the rear seat trim panel.
► Switch the ignition and the affected electrical equipment off.
► Check the following table to see which fuse belongs to the consumer.
► Remove the appropriate cover.
► To remove the purple plastic clip if necessary x), hold onto it at the small side and pull it out of the fuse panel.
► Remove the clamp from the rear side of the fuse cover.
► Remove the fuse using the clamp and replace the blown fuse with an identical new one.
Driver side cockpit fuse assignment
| Fuse panel (B) (brown) | ||
| № | Amps | Assignment/Designation |
| 1 | 5A | Headlight control switch |
| 2 | 5A | Emergency start coil (key identification) |
| 3 | 7.5A | Rear door control module (driver’s side) |
| 5 | 15A | Horn |
| 6 | 7.5A | Interior lights (headliner) |
| 8 | 10/5A | Steering column lever, multifunction steering wheel controls, steering wheel heating |
| 10 | 5A | Power steering column adjustment |
| 11 | 7.5A | Driver door control module |
| 12 | 10A | Diagnostic connector, light/rain sensor |
| 14 | 25A | Power steering column adjustment |
| 15 | 20A | Power steering, AC compressor |
| 16 | 15A | Brake booster |
| Fuse panel (C) (black) | ||
| 1 | 30A | Front seat heating |
| 2 | 30A | Windshield wiper |
| 3 | 30A | Front exterior lighting |
| 4 | 20A | Sunroof |
| 5 | 30A | Driver power window |
| 6 | 15A | Driver seat (pneumatic) |
| 7 | 20A | Panoramic sunroof |
| 8 | 35A | Dynamic steering |
| 9 | 30A | Front exterior lighting |
| 10 | 35A | Windshield/headlight washer system |
| 11 | 30A | Rear power window (driver’s side) |
| 12 | 40A | Panoramic sunroof |
Front passenger side cockpit fuse assignment
| № | Amps | Assignment/Designation |
| 1 | 5A | Anti-theft alarm system |
| 2 | 15A | Transmission control module |
| 3 | 40A | Front climate control fan |
| 4 | 35A | Engine supply |
| 5 | ||
| 6 | 5A | Engine control module |
| 7 | 7.5A | Front passenger door control module |
| 8 | 30A | Front passenger power window |
| 9 | 10A | ESC control module |
| 10 | 25A | ESC control module |
| 11 | 30A | Right rear power window |
| 12 | 15A | Front passenger seat (pneumatics) |
Luggage compartment fuse assignment
In conclusion, the Audi A8 (D4) is a luxury car that is designed with advanced features, including a cutting-edge electrical system. Understanding the locations of the fuse box and relay diagrams is crucial for proper maintenance and troubleshooting of the vehicle. Regularly checking the fuses and relays can help identify any electrical problems and prevent further damage to the car’s systems.
