The Audi A6 C8 model was first presented on February 28, 2018. The premiere took place at the Geneva Motor Show in March 2018. In mid-April 2018, the station wagon was presented. In January 2019, an extended modification was presented, which received the index A6L. Since April 2019, a sports version of the Audi S6 with a diesel internal combustion engine has been produced. In early June 2019, an all-wheel drive version of the Audi A6 Allroad Quattro based on the Avant station wagon was presented. Since August 2019, the Audi RS6 Avant version has been produced.
This article will discuss the fuses and relays in this car.
The current version of the Audi A6 C8 has been produced since 2022 and is available in the following possible variations.
Petrol:
2.0 l TFSI VW EA888 I4 (245/252/265 hp)
2.0 l TFSI VW EA888EVO4 I4 (265 hp)
3.0 l TFSI VW EA839 V6 (340 hp)
3.0 l TFSI VW EA839 V6 (450 hp) s.)
4.0 l TFSI VW EA825 V8 (600 hp)
Diesel:
2.0 l TDI VW EA288EVO I4 (163/204 hp)
3.0 l TDI VW EA897EVO2 V6 (231/245/286 hp)
3.0 l TDI VW EA897EVO3 V6 (286 hp)
3.0 l TDI V6 (344/349 hp)
Despite such a wide range of options, the cars use a similar scheme for providing consumers with power supply, standard relay and fuse blocks are used. Here we will talk about them further with decoding and indication of their installation in the car. And also about where and what fuses are on the Audi of a specific model.
Fuses and relays Audi A6 C8 (2018 – 2025) in the cabin
In the cabin, as is generally accepted at Audi, the units are located at the end of the instrument panel and in the left footrest on the floor.
First, about the unit at the end of the instrument panel.
And this is how the block looks visually in reality
The following fuses are schematically installed and numbered in the block.
And of course we will provide their decoding in the table below.
| 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 panel |
| A8 | Front MMI display (upper/lower) |
| A9 | Heated steering wheel |
| Fuse Panel B (Brown) | |
| B2 | MMI Infotainment Control Module |
| B3 | Audi Music Interface , USB connection |
| B4 | Windshield Display |
| B5 | Climate control system, aromatization system, ionizer |
| B9 | Steering column lock |
Now about the block under the left footrest.
You need to take a special key and unscrew the fastener, remove the cover.
Schematically, the following fuses are installed in it:
The designation and decoding are given in the table.
| Fuse Panel A (Black) | |
| A1 | 2018-2019: Not used; |
| 2020-2023: Catalytic Converter Heating | |
| A2 | Engine components |
| A3 | Engine components |
| A4 | Engine components |
| A5 | Brake light sensor |
| A6 | 2018-2019: Engine components; |
| 2020-2024: Engine valves, camshaft adjustment | |
| A7 | Engine components |
| A8 | Engine components |
| A9 | 2018-2020: Engine Components |
| 2021-2024: Engine Components, 48V Water Pump, 48V Transmission Alternator | |
| A10 | Oil pressure sensor, oil temperature sensor |
| A11 | 2018-2019: Engine start; |
| 2020 – 2024: Engine Components, 48V Water Pump, 48V Transmission Alternator, 12V Transmission Alternator | |
| A12 | Engine components, engine valves, engine mounts |
| A13 | Radiator fan |
| A14 | 2018-2019: Engine Control Module; |
| 2020-2024: Engine Control Module, Fuel Injectors | |
| A15 | 2018-2020: Engine Sensors |
| 2021-2024: Engine sensors, ignition coils, oxygen sensors | |
| A16 | Fuel pump |
| Fuse Panel B (Red) | |
| B1 | Anti-theft alarm |
| B2 | Engine Control Module |
| B3 | Left anterior lumbar support |
| B5 | Siren |
| B6 | Parking brake |
| B7 | Gateway control module (diagnostics) |
| B8 | 2018-2019: Interior upholstery lighting; |
| 2020-2024: Roof electronics control module | |
| B9 | Driver assistance systems control module |
| B10 | Airbag control module |
| B11 | Electronic Stability 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 | Auxiliary Battery Control Module, Brake Pressure Reservoir |
| Fuse Panel C (Red) | |
| C1 | Engine ignition coils |
| C3 | 2018-2019: Not used; |
| 2020-2024: High Voltage Heating, Compressor | |
| C5 | Engine mount |
| C6 | Automatic transmission |
| C7 | Dashboard |
| C8 | Climate control system fresh air blower |
| C9 | Windshield wiper control module |
| C10 | Dynamic steering |
| C11 | Starting the engine |
| C12 | 2018-2019: Not used; |
| 2020: Automatic transmission | |
| 2021-2024: Automatic Transmission Fluid Pump | |
| Fuse Panel D (Black) | |
| D1 | Heated front seats |
| D2 | Windscreen 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/Headlamp Washer System |
| D11 | Left Rear Door Control Module |
| D12 | Parking heater |
| Fuse Panel E (Brown) | |
| E1 | 2018-2019: Ventilated seats, heated seats, 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) | |
| E2 | 2018-2019: Climate control system; |
| 2020-2024: Vehicle Electrical Control Module, Gateway Control Module | |
| E3 | Sound actuator/exhaust sound adjustment |
| E4 | Transmission Heater Valve |
| E5 | Starting the engine |
| E7 | Active accelerator pedal |
| E8 | Night vision system, active roll stabilization |
| E9 | Adaptive cruise assist, front radar |
| E11 | Cross-Traffic Assist, Driver Assistance Systems |
Additional fuses and relays may be installed next to the unit, for example, a control unit for adjusting the seat and steering column with memory, etc.
Fuse box in the trunk of the Audi A6 C8
The box itself can be found on the left side in the depth of the trunk.
Fuse diagram for this unit.
Purpose, decoding, what fuses are responsible for.
| Fuse Panel A (Black) | |
| A1 | 2021-2022: Thermal Management |
| A3 | Rear passenger side seat belt tensioner |
| A4 | Rear driver side seat belt tensioner |
| A5 | Air suspension |
| A6 | Automatic transmission |
| A7 | Rear sliding sunroof, rear spoiler |
| A8 | Heated rear seats |
| A9 | 2018-2019: Central locking, rear lights; |
| 2020: Left Tail Light | |
| 2021-2024: Comfort system control module, left rear light | |
| A10 | Front driver side seat belt tensioner |
| A11 | 2018-2019: Central locking, rear blind; |
| 2020: Central locking of the boot lid, fuel filler door, boot lid | |
| 2021-2024: Central locking tailgate, fuel filler door, sun visor, tailgate | |
| A12 | Trunk Lid Control Module |
| Fuse Panel B (Red) | |
| B1 | 2018-2019: Not used; |
| 2020: Suspension Stabilization Control Module | |
| B2 | 2018-2019: Not used; |
| 2020: Service disconnect switch | |
| B4 | 2018-2019: Not used; |
| 2020: Electric Motor | |
| 2021-2024: Electric drive system, power electronics | |
| B5 | 2018-2020: Brake system |
| 2021-2024: Brake system, brake booster | |
| B6 | 2018-2019: Not used; |
| 2020-2022: High Voltage Battery Water Pump | |
| B7 | 2018-2019: Not used; |
| 2020: Hybrid climate control with remote control | |
| 2021: Auxiliary climate control | |
| B8 | 2018-2019: Not used; |
| 2020: Hybrid Air Conditioning Compressor | |
| 2021-2022: Climate control system compressor | |
| B9 | Auxiliary Battery Control Module |
| B10 | 2018-2019: Not used; |
| 2020-2024: Hybrid High-Voltage Battery | |
| B11 | 2018-2019: Not used; |
| 2020-2024: Hybrid Charger | |
| B14 | 2018-2019: Not used; |
| 2020-2024: Thermostat, water pump | |
| B15 | 2018-2019: Not used; |
| 2020-2024: Thermal Management Module | |
| B16 | 2018-2019: Not used; |
| 2020: Gateway | |
| Fuse Panel C (Brown) | |
| C1 | Driver assistance systems control module |
| C2 | 2018-2020: Audi phone booth, roof antenna |
| 2021-2024: Audi Phone Block | |
| C3 | 2018-2019: Right front lumbar support; |
| 2020-2021: Front seat electronics, right lumbar support | |
| 2022: Right Lumbar Support | |
| C4 | Lateral assistance |
| C5 | 2018-2019: Not used; |
| 2020-2021: Rear Climate Control Panel | |
| 2022: Rear Seat Remote Control | |
| C6 | Tire pressure monitoring system |
| C7 | Emergency call system |
| C8 | 2018-2019: Not used; |
| 2020-2024: Parking heater radio, fuel tank monitoring | |
| C9 | Automatic transmission selector lever |
| C10 | TV tuner, data exchange and telematics control module |
| C11 | Opening/starting the car (NFC) |
| C12 | Opening garage doors |
| C13 | Rear view camera, peripheral cameras |
| C14 | Central locking, rear lights |
| C16 | Front passenger side front seat belt tensioner |
| Fuse Panel D (Black) | |
| D1-D16 | Not assigned |
| Fuse panel E (red) | |
| E2 | 2021-2022: Outdoor Antenna |
| E3 | Exhaust system, sound actuator, air conditioning socket |
| E4 | Rear climate control system control panel |
| E5 | Right trailer hitch light, right rear seat adjustment |
| E7 | Trailer coupling device |
| E8 | Left towbar light, right rear seat adjustment |
| E9 | Hitch socket, high voltage battery |
| E10 | All-wheel drive sport differential |
| E11 | Exhaust gas treatment |
| E12 | Generator 48V |
Additional elements
Description
- A – 15A Front passenger seat adjustment with memory control unit (right-hand drive)
- B –
- C – 30A Rear window heating relay
- D – 40A Adaptive suspension compressor electronics
- E –
- F –
In addition, power fuses are installed in the engine compartment directly on the battery.
A high-power fuse box may be installed near the battery.