A4
Audi A4 (2018) – fuses diagram
Audi A4 (2018) – fuse box diagram
Year of production: 2018
Fuse assignment – driver / front passenger legroom
Front passenger legroom (vehicle with steering wheel on right side)
Fuse panel A (brown)
| Number | Electrical equipment |
| 1 | – |
| 2) | Mass air flow sensor, camshaft adjustment, charge air cooler pump |
| 3) | Exhaust door, fuel injectors, radiator inlet |
| 4 | Vacuum pump, hot water pump, particulate sensor, biodiesel sensor |
| 5 | Brake light sensor |
| 6 | Engine valves, camshaft adjustment |
| 7 | Heated oxygen sensor, mass air flow sensor |
| 8 | Water pump, high pressure pump, high pressure regulator valve |
| 9 | Hot water pump |
| 10 | Oil pressure sensor, oil temperature sensor |
| 11 | Clutch pedal position sensor |
| 12 | Engine valves |
| 13 | Radiator fan |
| 14 | Fuel injectors |
| 15 | Ignition coils |
| 16 | Fuel pump |
Fuse panel B (red)
| Number | Electrical equipment |
| 1 | Anti-theft alarm system |
| 2) | Engine control module |
| 3) | Lumbar support |
| 4 | Automatic transmission selection mechanism |
| 5 | Horn |
| 6 | Electromechanical parking brake |
| 7 | Gate control module |
| 8 | Interior headlights |
| 9 | – |
| 10 | Airbag control module |
| 11 | Electronic stability control (ESC) |
| 12 | Diagnostic connector, light / rain sensor |
| 13 | Climate control system |
| 14 | Right front door control module |
| 15 | Air conditioning compressor |
Fuse panel C (black)
| Number | Electrical equipment |
| 1 | Front seat heater |
| 2) | Wipers |
| 3) | Left headlight electronics |
| 4 | Panoramic glass roof / sliding / t ilting roof |
| 5 | Left front door control module |
| 6 | Sockets |
| 7 | Right rear door control module |
| 8 | All-wheel drive |
| 9 | Right headlight electronics |
| 10 | Windshield washer/headlight washer system |
| 11 | Left rear door control module |
Fuse panel D (black)
| Number | Electrical equipment |
| 1 | Seat ventilation, rear view mirror, rear air conditioning controls |
| 2) | Gate, climate control system |
| 3) | Sound activator / exhaust sound tuning |
| 4 | Clutch pedal position sensor |
| 5 | Engine start |
| 6 | – |
| 7 | Rear USB charging port |
| 8 | Homelink |
| 9 | Adaptive cruise control |
| 10 | – |
| 11 | Video camera |
| 12 | Matrix LED headlight / right LED headlight |
| 13 | Matrix LED headlight / left LED headlight |
| 14 | Rear windshield wiper |
Fuse panel E (red)
| Number | Electrical equipment |
| 1 | Ignition coils |
| 2) | Natural gas tank valves |
| 3) | – |
| 4 | – |
| 5 | Motor mount |
| 6 | Automatic transmission |
| 7 | Instrument panel |
| 8 | Air conditioning system (blower) |
| 9 | – |
| 10 | Dynamic control |
| 11 | Engine start |
Assignment of fuses in the cockpit on the driver’s side
| Number | Electrical equipment |
| 1 | – |
| 2) | Phone |
| 3) | – |
| 4 | Head-up display |
| 5 | Audi music interface, USB charging port |
| 6 | Front air conditioning controls |
| 7 | Steering column lock |
| 8 | Display of the audio-navigation system |
| 9 | Instrument cluster |
| 10 | Infotainment unit |
| 11 | Light switch |
| 12 | Steering column electronics |
| 13 | – |
| 14 | Audio-navigation system |
| 15 | – |
| 16 | Steering wheel heating |
Left luggage compartment fuse assignment
Audi A4 – fuse diagramFuse panel A (black)
| Number | Electrical equipment |
| 1 | – |
| 2) | Windshield defroster |
| 3) | Windshield defroster |
| 4 | – |
| 5 | Suspension check |
| 6 | Automatic transmission |
| 7 | Rear window defogger |
| 8 | Rear seat heater |
| 9 | Rear lights |
| 10 | Left seat belt pretensioner |
| 11 | Central locking system |
| 12 | Electric trunk lid |
Fuse panel B (red)
| Number | Electrical equipment |
| Not assigned |
Fuse panel C (brown)
| Number | Electrical equipment |
| 1 | – |
| 2) | Phone |
| 3) | Lumbar support |
| 4 | Audi side assist |
| 5 | – |
| 6 | – |
| 7 | – |
| 8 | Smart module (tank) |
| 9 | – |
| 10 | – |
| 11 | 12 V battery. |
| 12 | Homelink |
| 13 | Rear camera, peripheral cameras |
| 14 | Right rear lights |
| 15 | – |
| 16 | Right seat belt pretensioner |
Fuse panel E (red)
| Number | Electrical equipment |
| 1 | – |
| 2) | Sound amplifier |
| 3) | AdBlue heating |
| 4 | – |
| 5 | Trailer hitch (right light) |
| 6 | – |
| 7 | Towing hook |
| 8 | Trailer hitch (left light) |
| 9 | Trailer hitch (socket) |
| 10 | Sport differential |
| 11 | Ad Blue |
