Audi A8 D5 (2021) – fuse box
Audi A8 D5 – fuse box diagram
Year of production:2021.
The cigarette lighter fuse (power socket) on the Audi A8 D5 is the B7 fuse in the fuse box in the footwell.
Location of the fuse box
Passenger compartment
There are two fuse blocks here:
The first is on the left side of the cockpit. And the other is behind the cover in the left footwell.
Trunk
It is located on the left side of the boot, behind the side trim panel.
Fuse box diagrams
Foot fuse panel
Arrangement of fuses in the footwell
| Number | Description |
|---|---|
| Fuse panel 1 (brown) | |
| A1 | Engine ignition coils |
| A2 | Engine start;
Electric motor clutch. |
| A3 | Windshield wiper control module |
| A4 | Left headlight electronics |
| A5 | Air conditioning blower |
| A6 | Instrument panel |
| A7 | Windshield wipers |
| A9 | Panoramic glass sunroof |
| Fuse panel 2 (black) | |
| B1 | Engine mount |
| B2 | Left Rear Door Control Module |
| B3 | Windscreen washers;
Headlight washers. |
| B4 | Right headlight electronics |
| B5 | Front seat heating |
| B6 | Right rear door control module |
| B7 | 12V sockets |
| B8 | Left front door control module |
| B9 | Auxiliary heating |
| Fuse panel 3 (red) | |
| C1 | Anti-theft alarm system |
| C2 | Engine control module |
| C5 | Horn |
| C6 | Parking brake |
| C7 | CAN gate control module (diagnostics) |
| C8 | Control module in the headliner |
| C9 | Driver assistance systems control module |
| 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 | Right front door control module |
| C15 | Air conditioning blower;
Vehicle electrical system control module. |
| C16 | Brake system pressure reservoir |
| Fuse panel 4 (black) | |
| D2 | Engine components;
Water pump; Heated oxygen sensor. |
| D3 | Exhaust doors;
Fuel injectors; An air inlet; Engine heating. |
| D4 | NOx sensor;
Particulate sensor; Biodiesel sensor; Exhaust doors. |
| 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 adjustment. |
| D9 | 48V alternator starter;
48V water pump; Engine components. |
| D10 | Oil pressure sensor;
Oil temperature sensor. |
| D11 | 48V alternator starter;
48V water pump; Alternator starter 12V. |
| D12 | Engine valves;
Engine mount. |
| D13 | engine cooling |
| D14 | Engine control module;
Fuel injectors. |
| D15 | Heated oxygen sensor;
Charge air cooling; Ignition coils. |
| D16 | Fuel pump |
Fuse panel in the cockpit
Arrangement of fuses on the left side of the dashboard
| 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;
Fragrance system; Particulate sensor. |
| A4 | Head-up display |
| A5 | Audi music interface;
USB sockets. |
| A7 | Steering column lock |
| A8 | Lower and upper display |
| A9 | Dashboard |
| A10 | Volume control |
| A11 | Light switch;
Switch panels. |
| A12 | Steering column electronics |
| A14 | MMI Infotainment system control module |
| A15 | Steering column adjustment |
| A16 | Steering wheel heating |
Fuse box in the trunk
Assignment of fuses in the trunk
| Number | Description |
|---|---|
| Fuse panel 1 (black) | |
| A1 | Thermal management |
| A5 | Pneumatic suspension |
| A6 | Automatic Transmission |
| A7 | Right rear seat adjustment |
| A8 | Rear seat heating |
| A9 | Rear lights. |
| A10 | Driver’s side front belt tensioner |
| A11 | Trunk lid;
Comfort system control module Rear blind; Fuel filler door. |
| A12 | Trunk lid control module |
| Fuse panel 2 (red) | |
| B1 | Rear air conditioning blower |
| B2 | External antenna |
| B3 | Exhaust gas cleaning;
Sound activator. |
| B4 | Rear air conditioning control panel |
| B5 | Right trailer hitch light |
| B6 | Trailer hitch positioning motor |
| B7 | Towbar |
| B8 | Left trailer hitch lamp |
| B9 | Trailer hitch socket;
High voltage battery. |
| B10 | Sports differential |
| B11 | Exhaust gas treatment. |
| Fuse panel 3 (brown) | |
| C1 | Driver assistance systems control module |
| C2 | Audi Phonebox at the rear |
| C3 | Rear seat adjustment |
| C4 | Side assistant |
| C5 | Rear entertainment system (Audi tablet) |
| C6 | Tire pressure monitoring system |
| C7 | Emergency call system |
| C8 | Parking heater radio receiver;
Fuel tank monitoring. |
| C9 | Gear selector, automatic transmission |
| C10 | Television tuner;
Data exchange control module. |
| C11 | Opening and starting the vehicle (NFC) |
| C12 | Garage door opener (Homelink) |
| C13 | Rear view camera;
Peripheral cameras. |
| C14 | Vehicle opening and starting (NFC);
Rear lights. |
| C15 | Left rear seat adjustment |
| C16 | Front passenger side belt tensioner |
| Fuse panel 4 (black) | |
| D1 | Seat ventilation;
Rear seat heating; Rearview mirror; Refrigerator; Diagnostic connector. |
| D2 | CAN gate control module (communication) |
| D3 | Sound activator |
| D4 | Gearbox heating valve |
| D5 | Engine start;
Electric engine. |
| D7 | Active accelerator pedal. |
| D8 | Night vision assistant;
Active suspension. |
| D9 | Adaptive Driving Assistant |
| D11 | Assistant at intersections;
Driver assistance systems; Radar system; Camera system. |
| D12 | External sound generator |
| D13 | USB ports |
| D14 | Right headlight |
| D15 | Left headlight |
| Fuse panel 5 (red) | |
| E1 | Active suspension. |
| E2 | Service switch. |
| E3 | Refrigerator |
| E4 | Electric drive system |
| E5 | Braking system |
| E6 | High voltage battery water pump. |
| E7 | Additional control of air conditioning, heating and ventilation |
| E8 | Air conditioning compressor. |
| E9 | Auxiliary battery control module |
| 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 sunroof |
| F3 | CD / DVD player |
| F5 | AC socket |
| F6 | Passenger’s rear seat belt pretensioner |
| F7 | Heated front center armrest |
| F8 | Rear footrest heating |
| F11 | Rear seat remote control |
| F12 | Driver’s side rear seat belt pretensioner |