Audi A8 D5 – fuse box diagram
Year of manufacture: 2021.
Cigarette lighter fuse (power socket) in Audi A8 D5 Is the B7 fuse in the fuse box in the leg room.
Location of the fuse box
Passenger compartment
Two fuse blocks are located here:
The first one is located on the left side of the cockpit. And the second is located behind the cover, in the left leg room.
Trunk
Located on the left side of the trunk, behind the side trim panel.
Fuse box diagrams
Leg Fuse Panel
Assignment of fuses in the leg room
| Number | Description |
|---|---|
| Fuse panel 1 (brown) | |
| A1 | Engine Ignition Coils |
| A2 | Starting the engine;
Electric motor clutch. |
| A3 | Windshield wiper control module |
| A4 | Left-Headlight Electronics |
| A5 | A/C system fan |
| A6 | Dashboard |
| A7 | Windshield wipers |
| A9 | Panoramic glass roof |
| Fuse panel 2 (black) | |
| B1 | Motor Mounting |
| B2 | Left rear door control module |
| B3 | Windshield washers;
Headlight washers. |
| B4 | Right Headlight Electronics |
| B5 | Front seat heating |
| B6 | Right Rear Door Control Module |
| B7 | 12V sockets |
| B8 | Front left door control module |
| B9 | Parking Lot Heater |
| Fuse panel 3 (red) | |
| C1 | Anti-theft alarm system |
| C2 | Motor control module |
| C5 | Horn |
| C6 | Parking brake |
| C7 | CAN gateway control module (diagnostic) |
| C8 | Control module in header liner |
| C9 | Control Module for Driver Assistance Systems |
| C10 | Airbag control module |
| C11 | Electronic Stability Control (ESC);
Anti-lock braking system (ABS). |
| C12 | Rear air conditioning control unit;
Diagnostic connector; Light and rain sensor. |
| C13 | Air conditioning, heating and ventilation control system;
Vehicle electrical system control module. |
| C14 | Front right door control module |
| C15 | Air conditioning fan;
Vehicle electrical system control module. |
| C16 | Brake system pressure reservoir |
| Fuse panel 4 (black) | |
| D2 | Engine components;
Water pump; Heated oxygen sensor. |
| D3 | Exhaust ports;
Fuel injectors; Air intake; Engine heating. |
| D4 | NOx sensor;
Particulate matter sensor; Biodiesel sensor; Exhaust port. |
| D5 | Brake Light Sensor |
| D6 | Engine valves;
Camshaft adjustment. |
| D7 | Heated oxygen sensor;
Air mass sensor. |
| D8 | Water pump;
High pressure pump; Air mass sensor; Fuel pressure control. |
| D9 | 48V alternator starter;
48V water pump; Engine components. |
| D10 | Oil pressure sensor;
Oil temperature sensor. |
| D11 | 48V alternator starter;
48V water pump; 12V alternator starter. |
| D12 | Engine valves;
Engine mounts. |
| D13 | Engine Cooling |
| D14 | Motor control module;
Fuel injectors. |
| D15 | Heated oxygen sensor;
Charging the air cooling; Ignition coils. |
| D16 | Fuel Pump |
Cockpit fuse panel
Fuse assignment on the left side of the instrument panel
| Number | Description |
|---|---|
| A1 | Air conditioning, heating and ventilation system;
Indoor air sensor. |
| A2 | Audi Phonebox;
External Antenna. |
| A3 | Air conditioning, heating and ventilation control system;
Scent system; Particulate matter sensor. |
| A4 | Main Screen |
| A5 | Audi Music Interface;
USB sockets. |
| A7 | Steering column lock |
| A8 | Bottom and Top View |
| A9 | Dashboard |
| A10 | Volume control |
| A11 | Light switch;
Panel switch. |
| A12 | Steering column electronics |
| A14 | Infotainment system control module MMI |
| A15 | Steering column adjustment |
| A16 | Steering wheel heating |
Fuse box in the trunk
Assigning fuses in the trunk
| Number | Description |
|---|---|
| Fuse panel 1 (black) | |
| A1 | Thermal Management |
| A5 | Air Suspension |
| A6 | Automatic transmission |
| A7 | Right rear seat adjustment |
| A8 | Rear seat heating |
| A9 | Tail lights. |
| A10 | Front belt tensioner on driver’s side |
| A11 | Boot cover;
Comfort system control module Rear roller shutter; Fuel filler door. |
| A12 | Boot lid control module |
| Fuse panel 2 (red) | |
| B1 | Rear air conditioning system fan |
| B2 | External Antenna |
| B3 | Exhaust gas cleaning;
Sound Activator. |
| B4 | Rear air conditioning control panel |
| B5 | Trailer Hitch Light Right |
| B6 | Positioning Trailer Hitch Motor |
| B7 | Towing hook |
| B8 | Left Trailer Hitch Lamp |
| B9 | Trailer Hitch Socket;
High-voltage battery. |
| B10 | Sport differential |
| B11 | Exhaust gas cleaning. |
| Fuse panel 3 (brown) | |
| C1 | Control Module for Driver Assistance Systems |
| C2 | Audi Phonebox in the back |
| C3 | Rear seat adjustment |
| C4 | Lateral assistance |
| C5 | Rear entertainment system (Audi tablet) |
| C6 | Tire pressure monitoring system |
| C7 | Emergency Call System |
| C8 | Parking lot heater radio receiver;
Fuel tank monitoring. |
| C9 | Automatic transmission shift lever |
| C10 | TV Tuner;
Data exchange control module. |
| C11 | Opening and starting the vehicle (NFC) |
| C12 | Garage door opener (Homelink) |
| C13 | Reversing Camera;
Peripheral cameras. |
| C14 | Opening and starting the vehicle (NFC);
Tail lights. |
| C15 | Left rear seat adjustment |
| C16 | Front passenger side belt tensioner |
| Fuse panel 4 (black) | |
| D1 | Seat ventilation;
Rear seat heating; Rear view mirror; Refrigerator; Diagnostic connector. |
| D2 | CAN gateway control module (communication) |
| D3 | Sound Activator |
| D4 | Transmission Heating Valve |
| D5 | Starting the engine;
Electric motor. |
| D7 | Active accelerator pedal. |
| D8 | Night Vision Assistant;
Active Suspension. |
| D9 | Adaptive driving assistant |
| D11 | Assistance at crossings;
Driver assistance systems; Radar system; Camera system. |
| D12 | External sound generator |
| D13 | USB ports |
| D14 | Headlight right |
| D15 | Left Headlight |
| Fuse panel 5 (red) | |
| E1 | Active Suspension. |
| E2 | Service switch. |
| E3 | Refrigerator |
| E4 | Electric traction train |
| E5 | Brake System |
| E6 | High voltage rechargeable water pump. |
| E7 | Additional control of air conditioning, heating and ventilation |
| E8 | Air conditioning compressor. |
| E9 | Control module for additional battery |
| E10 | High voltage battery. |
| E11 | High Voltage Charger |
| E14 | Thermal management. |
| E15 | Thermal management. |
| Fuse panel 6 (white) | |
| F1 | Rear center armrest heating |
| F2 | Rear sliding roof |
| F3 | CD/DVD Player |
| F5 | AC Socket |
| F6 | Rear passenger side seat belt pretensioner |
| F7 | Front center armrest heating |
| F8 | Rear footrest heating |
| F11 | Rear seat remote control |
| F12 | Driver’s side rear seat belt pretensioner |
