Audi (A5 / S5) (2021 – 2025) Fuse Box Location & Diagrams
Understanding your Audi A5 or S5 fuse box is essential for quick electrical troubleshooting. This guide covers exact fuse box locations and clear diagrams for 2021–2025 models. Identify blown fuses easily and keep your Audi running smoothly without guesswork.
Fuse Box Location
Passenger Compartment Fuse Box
Driver’s/front passenger’s footwell
The fuses are located in the footwell under the footrest (left-hand drive vehicle) or behind the cover (right-hand drive vehicle)
Instrument panel
Additional fuses are located on the front side of the cockpit (driver’s side).
Luggage Compartment Fuse Box
The fuses are located under the left cover in the luggage compartment.
Fuse Box Diagrams
Passenger Compartment Fuse Box
Driver’s/front passenger’s footwell
Left-hand drive vehicles
Right-hand drive vehicles
| № | Equipment |
|---|---|
| Fuse panel A (brown) | |
| 1 | Catalytic converter heating |
| 2 | Engine components |
| 3 | Exhaust doors, fuel injectors, air intake, motor heating |
| 4 | Vacuum pump, hot water pump, NOx sensor, particulate sensor, biodiesel sensor, exhaust doors |
| 5 | Brake light sensor |
| 6 | Engine valves, camshaft adjustment |
| 7 | Heated oxygen sensors, mass airflow sensor, water pump |
| 8 | Water pump, high pressure pump, high pressure regulator valve, temperature valve, engine mount |
| 9 | Hot water pump, motor relay, 48 V starter generator, 48 V water pump |
| 10 | Oil pressure sensor, oil temperature sensor |
| 11 | Clutch position sensor, 48 V starter generator, water pump, 12 V starter generator |
| 12 | Engine valves, engine mount |
| 13 | Engine cooling |
| 14 | Fuel injectors, drive system control module |
| 15 | Ignition coils, heated oxygen sensors |
| 16 | Fuel pump |
| Fuse panel B (red) | |
| 1 | Anti-theft alarm system |
| 2 | Drive system control module |
| 3 | Left front seat electronics, lumbar support, massaging seat |
| 4 | Automatic transmission selector lever |
| 5 | Horn |
| 6 | 2021-2022: Parking brake 2023-2025: Parking brake, Electronic Toll Collection System (ETC) |
| 7 | Diagnostic interface |
| 8 | Roof electronics control module |
| 9 | Emergency call and communication control module |
| 10 | Airbag control module |
| 11 | Electronic Stabilization Control (ESC), Anti-Lock Braking System (ABS) |
| 12 | 2021-2023: Diagnostic connection, light/rain sensor 2024-2025: Diagnostic connection, Electronic Toll Collection System (ETC), Light/rain sensor |
| 13 | Climate control system |
| 14 | Right front door control module |
| 15 | Climate control system compressor |
| 16 | 2021-2024: Brake system pressure reservoir, left neck heating 2025: Brake system pressure reservoir |
| Fuse panel C (black) | |
| 1 | Front seat heating |
| 2 | Windshield wipers |
| 3 | Left headlight electronics |
| 4 | Panoramic glass roof |
| 5 | Left front door control module |
| 6 | 12 volt socket |
| 7 | Right rear door control module, right rear power window |
| 8 | All wheel drive control module |
| 9 | Right headlight electronics |
| 10 | Windshield washer system/headlight washer system control module |
| 11 | Left rear door control module, left rear power window |
| 12 | Parking heater |
| Fuse panel D (black) | |
| 1 | Front seat electronics, seat ventilation, rearview mirror, rear climate control system control panel, neck heating, front passenger’s airbag warning light, diagnostic connection |
| 2 | Diagnostic interface, vehicle electrical system control module |
| 3 | Sound generator |
| 4 | Clutch position sensor |
| 5 | 2021-2023: Engine start, emergency shut-off 2024-2025: Engine start |
| 6 | Diagnostic connection, traffic information antenna (TMC) |
| 7 | USB connection |
| 8 | Garage door opener |
| 9 | Audi adaptive cruise control, adaptive distance regulation |
| 11 | Front camera |
| 12 | Right headlight |
| 13 | Left headlight |
| 14 | Transmission fluid cooling |
| Fuse panel E (red) | |
| 1 | Ignition coils |
| 2 | Climate control system compressor |
| 5 | Left headlight |
| 6 | Automatic transmission |
| 7 | Instrument panel |
| 8 | Climate control system blower |
| 9 | Right headlight |
| 10 | Dynamic steering |
| 11 | Engine start |
Instrument panel
| № | Equipment |
|---|---|
| 1 | Convenience access and start authorization control module |
| 2 | Audi phone box, USB connection |
| 4 | Head-up display |
| 5 | 2021-2022: Audi music interface, USB connection 2023-2025: USB ports with charging function |
| 6 | Front climate control system control panel |
| 7 | Steering column lock |
| 8 | Center display |
| 9 | Instrument cluster |
| 10 | Volume control |
| 11 | Light switch, switch module |
| 12 | Steering column electronics |
| 14 | Infotainment system |
| 16 | Steering column electronics, steering wheel heating |
Luggage Compartment Fuse Box
| № | Equipment |
|---|---|
| Fuse panel A (black) | |
| 2 | Windshield defroster |
| 3 | Windshield defroster |
| 5 | Suspension control |
| 6 | Automatic transmission |
| 7 | Rear window defogger |
| 8 | Rear seat heating |
| 9 | Left tail lights |
| 10 | Airbag, driver’s side safety belt tensioner control module |
| 11 | Luggage compartment lid lock, fuel filler door lock, convenience system control module |
| 12 | Luggage compartment lid |
| Fuse panel B (red) | |
| 6 | Electric compressor |
| Fuse panel C (brown) | |
| 1 | Exterior antenna |
| 2 | 2021-2024: Audi phone box, safety belt microphone 2025: Audi phone box |
| 3 | Right front seat electronics, lumbar support, massaging seat |
| 4 | Side assist |
| 6 | Interior monitoring, anti-theft alarm system, tire pressure monitoring system |
| 7 | Convenience access and start authorization control module |
| 8 | 2021-2022: Auxiliary heating, tank module 2023-2025: Tank module |
| 9 | 2021-2024: Power top control module |
| 10 | 2021-2023: TV tuner, data exchange and telematics control module 2024-2025: Data exchange and telematics control module |
| 11 | Auxiliary battery control module |
| 12 | Garage door opener |
| 13 | Rearview camera, peripheral cameras |
| 14 | Right tail lights |
| 16 | 2021: Airbag control module 2022: Airbag, front passenger’s side safety belt tensioner control module |
| Fuse panel E (red) | |
| 1 | 2021-2024: Right neck heating |
| 3 | Exhaust treatment |
| 4 | 2021-2024: Power top control module |
| 5 | Right trailer hitch light |
| 7 | Trailer hitch |
| 8 | Left trailer hitch light |
| 9 | Trailer hitch socket |
| 10 | All wheel drive control module, sport differential |
| 11 | Exhaust treatment |
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