In this article we take a look at the second-generation Audi A7 (4K8), available from 2018 to the present. Here you will find the Audi A7 and S7 2018, 2019, 2020, 2021 and 2022 fuse box diagrams, information on the location of the fuse boxes in the car and the assignment of each fuse (fuse layout).
Fuse Box Location
Passenger Compartment
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
The fuses are under the lid on the trunk floor.
Fuse Box Diagrams
Cockpit fuse panel
Assignment of the fuses on the left side of the dashboard
| № | 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 display |
| A9 | Steering wheel heating |
| Fuse panel B (brown) | |
| B2 | MMI Infotainment system control module |
| B3 | Audi music interface, USB connection |
| B4 | Head-up display |
| B5 | Climate control system, fragrance system, ionizer |
| B9 | Steering column lock |
Footwell fuse panel
*The fuse assignment “C” and “D” is in the opposite order on right-hand drive vehicles.
Assignment of the fuses in the footwell
| № | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | 2021: Catalytic converter heating |
| A2 | Engine components |
| A3 | Engine components |
| A4 | Engine components |
| A5 | Brake light sensor |
| A6 | Engine components |
| A7 | Engine components |
| A8 | Engine components |
| A9 | 2018-2020: Engine components 2021-2022: Engine components, 48 V water pump, 48 V drivetrain generator |
| A10 | Oil pressure sensor, oil temperature sensor |
| A11 | 2018-2020: Engine start 2021-2022: Engine components, 48 V water pump, 48 V drivetrain generator, 12 V drivetrain generator |
| A12 | Engine components |
| A13 | Radiator fan |
| A14 | 2018-2020: Engine control module 2021-2022: Engine control module, fuel injectors |
| A15 | 2018-2020: Engine sensors 2021-2022: 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 |
| B5 | Horn |
| B6 | Parking brake |
| B7 | Gateway control module (diagnosis) |
| B8 | 2018-2020: Interior headliner lights 2021-2022: Roof electronics control module |
| B9 | Driver assist systems control module |
| B10 | Airbag control module |
| B11 | 2018-2019: Electronic Stabilization Control (ESC); 2020: 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, body electronics |
| B16 | 2018-2020: Auxiliary battery control module 2021-2022: Auxiliary battery control module, brake system pressure reservoir |
| Fuse panel C (red) | |
| C1 | Engine ignition coils |
| C3 | 2021: High-voltage heating, compressor |
| C5 | Engine mount |
| C6 | Automatic transmission |
| C7 | Instrument panel |
| C8 | Climate control system blower |
| C9 | Windshield wiper control module |
| C10 | Dynamic steering |
| C11 | Engine start |
| C12 | 2021-2022: 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 | Parking heater |
| Fuse panel E (brown) | |
| E1 | 2018-2019: Seat ventilation, seat heating, rearview mirror, climate control system, rear climate control system controls; 2020: Diagnostic connector, seat ventilation, |seat heating, rearview mirror, rear climate control system controls 2021-2022: Seat ventilation, seat electronics, rearview mirror, rear climate control system control panel, diagnostic connection, traffic information antenna (TMC) |
| E2 | 2018-2019: Climate control system; 2020-2022: Vehicle electrical system control module, gateway control module |
| E3 | Sound actuator/exhaust sound tuning |
| E4 | Transmission heating valve |
| E5 | Starter |
| E7 | 2021-2022: Active accelerator pedal |
| E8 | Night vision assist |
| E9 | Adaptive cruise assist |
| E11 | 2018-2019: Intersection assistant, driver assist systems; 2020-2022: Intersection assistant, driver assist systems, traffic jam pilot |
| E12 | 2021-2022: Exterior sound generator |
| E15 | 2021-2022: USB connection |
Luggage Compartment Fuse Box
Assignment of the fuses in the trunk
| № | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | 2021-2022: 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; 2020-2022: Central locking, left tail light |
| A10 | Left front safety belt tensioner |
| A11 | 2018-2019: Central locking, rear blind; 2020: Central locking, rear blind, fuel filler door 2021-2022: Luggage compartment lid central locking, fuel filler door, luggage compartment cover |
| A12 | Luggage compartment lid |
| Fuse panel B (red) | |
| B1 | 2021-2022: Suspension stabilization control module |
| B2 | 2021-2022: Service disconnect switch |
| B4 | 2021-2022: Electric drive system, power electronics |
| B5 | 2018-2020: Brake system 2021-2022: Brake system, brake booster |
| B6 | 2021-2022: High-voltage battery coolant pump |
| B7 | 2021-2022: Auxiliary climate control |
| B8 | 2021-2022: Climate control system compressor |
| B9 | Auxiliary battery control module |
| B10 | 2021-2022: High-voltage battery |
| B11 | 2021-2022: High-voltage charger |
| B14 | 2021-2022: Thermal management, coolant pumps |
| B15 | 2021-2022: Thermomanagement control module |
| Fuse panel C (brown) | |
| C1 | Driver assist systems control module |
| C2 | 2018-2020: Audi phone box, park assist antenna 2021-2022: Audi phone box |
| C3 | 2018-2020: Right front lumbar support 2021: Front seat electronics, right lumbar support 2022: Right lumbar support |
| C4 | Side assist |
| C5 | 2021: Rear climate control system control panel, Infotainment system control panel |
| C6 | Tire pressure monitoring system |
| C7 | Emergency call system |
| C8 | 2018-2019: Not Used; 2020: Parking heater, radio receiver, fuel tank monitoring |
| C9 | Automatic transmission selector lever |
| C10 | 2018-2019: TV tuner; 2020: TV tuner, data exchange control module |
| C11 | Vehicle opening/start (NFC) |
| C12 | Garage door opener |
| C13 | Rearview camera, peripheral cameras |
| C14 | 2018-2020: Central locking, tail lights 2021-2022: Convenience system control module, right tail light |
| C16 | Right front safety belt tensioner |
| Fuse panel D (black) | |
| D1-D16 | Not assigned |
| Fuse panel E (red) | |
| E2 | 2021-2022: Exterior antenna |
| E3 | 2018-2019: Exhaust treatment; 2020: Exhaust treatment, sound actuator, AC socket 2021-2022: Exhaust treatment, sound actuator |
| E4 | Rear climate control system control panel |
| E5 | Right trailer hitch light |
| E7 | Trailer hitch |
| E8 | Left trailer hitch light |
| E9 | 2018-2021: Trailer hitch socket 2022: Trailer hitch socket, high-voltage battery |
| E10 | 2018-2020: Sport differential 2021-2022: All wheel drive control module, sport differential |
| E11 | Exhaust treatment |
| E12 | 2021: 48 V drivetrain generator |
