Audi A6 & S6 (2018 – 2025) Fuse Box Location & Diagrams
Explore the fuse box locations and diagrams for Audi A6 and Audi S6 models from 2018 to 2025. This blog helps identify interior and engine compartment fuse layouts, ensuring quick troubleshooting, easy maintenance, and a better understanding of electrical systems in your vehicle, step by step.
Fuse Box Location
Passenger Compartment Fuse Box
In the cabin, there are two fuse blocks. The first is on the left front side of the cockpit.
And the second is in the driver’s footrest on left-hand drive vehicles, or behind the lid on front passenger footwell on right-hand drive vehicles.
Luggage Compartment Fuse Box
The fuses are under the lid on the trunk floor.
Fuse Box Diagrams
Passenger Compartment Fuse Box
Cockpit Fuse Panel
| № | Description |
|---|---|
| Fuse panel A (black) | |
| A2 | Steering column adjustment |
| A3 | CD/DVD player |
| A4 | Steering column electronics |
| A5 | Light switch, switch panels |
| A6 | Volume control |
| A7 | Instrument cluster |
| A8 | Front MMI (Upper/lower) display |
| A9 | Steering wheel heating |
| Fuse panel B (brown) | |
| B2 | MMI Infotainment system control module |
| B3 | 2018-2021: Audi music interface 2022: Audi music interface, USB connection 2023-2025: USB ports with charging function |
| B4 | Head-up display |
| B5 | Climate control system, fragrance system, ionizer |
| B9 | Steering column lock |
Footwell Fuse Panel
The fuse assignments “C” and “D” are in the opposite order on right-hand-drive vehicles.
| № | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | 2018-2019: Not Used; 2020-2021: Catalytic converter heating |
| A2 | Engine components |
| A3 | Engine components |
| A4 | Engine components |
| A5 | Brake light sensor |
| A6 | 2018-2019: Engine components; 2020-2021: Engine valves 2022-2025: Engine valves, camshaft adjustment |
| A7 | Engine components |
| A8 | Engine components |
| A9 | 2018-2020: Engine components 2021-2025: Engine components, 48 V water pump, 48 V drivetrain generator |
| A10 | Oil pressure sensor, oil temperature sensor |
| A11 | 2018-2019: Engine start; 2020: Engine components 2021-2025: Engine components, 48 V water pump, 48 V drivetrain generator, 12 V drivetrain generator |
| A12 | 2018-2020: Engine components 2021-2025: Engine valves, engine mount |
| A13 | Radiator fan |
| A14 | 2018-2019: Engine control module; 2020-2025: Engine control module, fuel injectors |
| A15 | 2018-2020: Engine sensors 2021-2025: Engine sensors, ignition coils, oxygen sensors |
| A16 | Fuel pump |
| Fuse panel B (red) | |
| B1 | Anti-theft alarm system |
| B2 | Engine control module |
| B3 | Left front lumbar support |
| B4 | 2023-2025: Electronic Toll Collection System (ETC) |
| B5 | Horn |
| B6 | Parking brake |
| B7 | Gateway control module (diagnosis) |
| B8 | 2018-2019: Interior headliner lights; 2020-2025: Roof electronics control module |
| B9 | Driver assist systems control module |
| B10 | Airbag control module |
| B11 | 2018-2019: Electronic Stabilization Control (ESC); 2020-2025: Electronic Stabilization Control (ESC), Anti-Lock Braking System (ABS) |
| B12 | Diagnostic connector, light/rain sensor |
| B13 | Climate control system |
| B14 | Right front door control module |
| B15 | Climate control system compressor, body electronics |
| B16 | 2018-2019: Auxiliary battery control module; 2020-2025: Auxiliary battery control module, brake system pressure reservoir |
| Fuse panel C (red) | |
| C1 | Engine ignition coils |
| C3 | 2018-2019: Not Used; 2020-2021: High-voltage heating, compressor |
| C5 | Engine mount |
| C6 | Automatic transmission |
| C7 | Instrument panel |
| C8 | Climate control system fresh air blower |
| C9 | Windshield wiper control module |
| C10 | Dynamic steering |
| C11 | Engine start |
| C12 | 2018-2019: Not Used; 2020: Automatic transmission 2021-2025: Automatic transmission fluid pump |
| Fuse panel D (black) | |
| D1 | Front seat heating |
| D2 | Windshield wipers |
| D3 | Left headlight electronics |
| D4 | Panoramic glass roof |
| D5 | Left front door control module |
| D6 | Sockets |
| D7 | Right rear door control module |
| D8 | All-wheel drive control module (quattro) |
| D9 | Right headlight electronics |
| D10 | Windshield washer system/headlight washer system |
| D11 | Left rear door control module |
| D12 | 2019-2022: Parking heater 2023-2025: Auxiliary heating, exterior sound generator |
| Fuse panel E (brown) | |
| E1 | 2018-2019: Seat ventilation, seat heating, rearview mirror, climate control system, rear climate control system controls; 2020-2024: Seat ventilation, seat electronics, rearview mirror, rear climate control panel, diagnostic connector, traffic information antenna (TMC) 2025: Seat ventilation, rearview mirror, rear climate control system control panel, diagnostic connection |
| E2 | 2018-2019: Climate control system; 2020-2025: Vehicle electrical system control module, gateway control module |
| E3 | Sound actuator/exhaust sound tuning |
| E4 | Transmission heating valve |
| E5 | Engine start |
| E7 | 2021-2025: Active accelerator pedal |
| E8 | Night vision assist |
| E9 | 2018-2019: Adaptive cruise assist; 2020-2024: Adaptive cruise assist, front radar 2025: Adaptive cruise assist |
| E11 | Intersection assistant, driver assist systems |
| E12 | 2022- 2025: Exterior sound generator |
| E15 | 2022-2025: USB connection |
Luggage Compartment Fuse Box
| № | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | 2021-2025: Thermal management |
| A3 | Passenger’s side rear safety belt tensioner |
| A4 | Driver’s side rear safety belt tensioner |
| A5 | Air suspension |
| A6 | Automatic transmission |
| A7 | Rear sliding sunroof, rear spoiler |
| A8 | Rear seat heating |
| A9 | 2018-2019: Central locking, tail lights; 2020: Left taillight 2021-2025: Convenience system control module, left tail light |
| A10 | Front belt tensioner on the driver’s side |
| A11 | 2018-2019: Central locking, rear blind; 2020: Luggage compartment lid central locking, fuel filler door, luggage compartment cover 2021-2025: Luggage compartment lid central locking, fuel filler door, sunshade, luggage compartment cover |
| A12 | Luggage compartment lid control module |
| Fuse panel B (red) | |
| B1 | 2018-2019: Not Used; 2020-2025: Suspension stabilisation control module |
| B2 | 2018-2019: Not Used; 2020-2023: Service disconnect switch 2024-2025: High-voltage battery emergency cut-off point |
| B4 | 2018-2019: Not Used; 2020: Electric motor 2021-2025: Electric drive system, power electronics |
| B5 | 2018-2020: Brake system 2021-2025: Brake system, brake booster |
| B6 | 2018-2019: Not Used; 2020-2025: High-voltage battery water pump |
| B7 | 2018-2019: Not Used; 2020: Hybrid remote-controlled interior climate control 2021-2025: Auxiliary climate control |
| B8 | 2018-2019: Not Used; 2020: Hybrid A/C compressor 2021-2025: Climate control system compressor |
| B9 | Auxiliary battery control module |
| B10 | 2018-2019: Not Used; 2020-2025: Hybrid high-voltage battery |
| B11 | 2018-2019: Not Used; 2020-2025: Hybrid charger |
| B14 | 2018-2019: Not Used; 2020-2025: Thermomanagement, water pump |
| B15 | 2018-2019: Not Used; 2020-2025: Thermomanagement control module |
| B16 | 2018-2019: Not Used; 2020: Gateway |
| Fuse panel C (brown) | |
| C1 | Driver assist systems control module |
| C2 | 2018-2020: Audi phone box, roof antenna 2021-2025: Audi phone box |
| C3 | 2018-2019: Right front lumbar support; 2020-2021: Front seat electronics, right lumbar support 2022-2025: Right lumbar support |
| C4 | Side assist |
| C5 | 2018-2019: Not Used; 2020-2021: Rear climate control system control panel 2022-2025: Rear Seat Remote |
| C6 | Tire pressure monitoring system |
| C7 | Emergency call system |
| C8 | 2018-2019: Not Used; 2020-2025: Parking heater radio receiver, fuel tank monitoring |
| C9 | Automatic transmission selector lever |
| C10 | 2018-2019: TV tuner; 2020-2025: TV tuner, data exchange and telematics control module |
| C11 | Vehicle opening/start (NFC) |
| C12 | Garage door opener |
| C13 | Rearview camera, peripheral cameras |
| C14 | Central locking, tail lights |
| C16 | Front belt tensioner on the front passenger’s side |
| Fuse panel D (black) | |
| D1-D16 | Not assigned |
| Fuse panel E (red) | |
| E2 | 2021-2025: Exterior antenna |
| E3 | 2018- 2019: Exhaust treatment; 2020-2025: Exhaust treatment, sound actuator, AC socket |
| E4 | Rear climate control system control panel |
| E5 | 2018-2020: Right trailer hitch light 2021-2025: Right trailer hitch light, right rear seat adjustment |
| E7 | 2018-2019: Trailer hitch; 2020-2025: Trailer hitch release |
| E8 | 2018-2020: Left trailer hitch light 2021-2025: Left trailer hitch light, right rear seat adjustment |
| E9 | 2018-2021: Trailer hitch socket 2022-2025: Trailer hitch socket, high-voltage battery |
| E10 | All-wheel drive sport differential |
| E11 | Exhaust treatment |
| E12 | 2018-2019: Not Used; 2020-2021: 48 V generator |
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