Audi Q7 4M (2021-2022) – fuse and relay box
Diagrams of fuse boxes and relays – Audi Q7 4M
Applies to vehicles manufactured in the years:
2021, 2022.
Fuse panel in the footwell
Left-hand drive
Right hand drive
Assignment of fuses in the driver’s or passenger’s footwell
| Number | Description |
|---|---|
| Fuse panel A (brown) | |
| A1 | Catalyst heating;
Camshaft adjustment. |
| A2 | Air mass flow sensor;
Heated oxygen sensor. |
| A3 | Engine heating;
Fuel injectors; Exhaust doors. |
| A4 | Hot water pump;
Exhaust doors; NOx sensor; Particulate sensor; Biodiesel sensor. |
| A5 | Brake light sensor |
| A6 | Engine valves |
| A7 | Heated oxygen sensor;
Air mass flow sensor. |
| A8 | High pressure pump;
Engine mount. |
| A9 | Engine components;
Engine relay. |
| A10 | Oil pressure sensor;
Oil temperature sensor. |
| A11 | 48 volt water pump;
48 volt powertrain generator; 12 volt powertrain generator. |
| A12 | Engine valves |
| A13 | engine cooling |
| A14 | Engine control module |
| A15 | Heated oxygen sensor |
| A16 | Fuel pump |
| Fuse panel B (red) | |
| B1 | Ignition coils |
| B3 | Heating 48 V |
| B4 | Electric compressor |
| B5 | Engine mount |
| B6 | Windshield washer system control module |
| B7 | Instrument panel |
| B8 | Air conditioning system;
Fresh air blower. |
| B9 | Driver assistance systems control module |
| B10 | Emergency call system |
| B11 | Starting the engine;
Electric motor clutch. |
| B12 | Right headlight |
| Fuse panel C (black) | |
| C1 | Front seat heating |
| C2 | Windshield wipers |
| C3 | Left headlight electronics |
| C4 | Panoramic glass sunroof |
| C5 | Left front door control module |
| C6 | Sockets |
| C7 | Right rear door control module |
| C8 | Left headlight |
| C9 | Right headlight electronics |
| C10 | Windscreen washers;
Headlight washers. |
| C11 | Left Rear Door Control Module |
| C12 | Auxiliary heating |
| Fuse panel D (brown) | |
| D1 | Seat ventilation;
Chair electronics; Rearview mirror; Rear air conditioning control panel; Diagnostic connector; Traffic Information (TMC) antenna. |
| D2 | Vehicle electrical system control module;
Diagnostic interface. |
| D3 | Adjustment of actuator sound and exhaust sound |
| D4 | Transmission fluid cooling valve |
| D5 | Engine start;
Electric engine. |
| D8 | Night vision assistant;
Active roll stabilization. |
| D9 | Adaptive Driving Assistant;
Front radar. |
| D10 | Sound from outside |
| D11 | Assistant at intersections;
Driver assistance systems. |
| D12 | Right headlight |
| D13 | Left headlight |
| D15 | USB port |
| D16 | Preparation for Rear Seat Entertainment |
| Fuse panel E (red) | |
| E1 | Anti-theft alarm system |
| E2 | Engine control module |
| E3 | Front seat electronics;
Lumbar support. |
| E4 | Gear selector, automatic transmission |
| E5 | Horn |
| E6 | Parking brake |
| E7 | Diagnostic interface |
| E8 | Ceiling console control module |
| E9 | 48 volt powertrain generator |
| E10 | Airbag control module |
| E11 | Electronic Stability Control (ESC);
Anti-lock Braking System (ABS). |
| E12 | Diagnostic connector;
Light and rain sensor. |
| E13 | Air conditioning control system |
| E14 | Right front door control module |
| E15 | Air conditioning compressor |
| E16 | Brake system pressure reservoir |
Fuse panel in the cockpit
Arrangement of fuses on the left side of the dashboard
| Number | Description |
|---|---|
| 2 | Audi Phone Box;
Coupling antenna. |
| 3 | Air conditioning system;
Fragrance system. |
| 4 | Head-up display |
| 5 | Audi music interface ;
USB sockets. |
| 7 | Steering column lock |
| 8 | Upper / lower display |
| 9 | Instrument cluster |
| 10 | DVD drive |
| 11 | Light switch;
Switch panels. |
| 12 | Steering column electronics |
| 13 | Volume control |
| 14 | MMI Infotainment system control module |
| 15 | Steering column adjustment |
| 16 | Steering wheel heating |
Luggage compartment fuse box
Plug-in hybrid drive
Assignment of fuses in the trunk
| Number | Description |
|---|---|
| Fuse panel A (black) | |
| A1 | High voltage heating;
Thermal management. |
| A5 | Pneumatic suspension |
| A6 | Automatic Transmission |
| A7 | Rear seat heating;
Rear air conditioning control panel. |
| A8 | Third row seat adjustment |
| A9 | 2021:
Left tail light; 2022: Left tail light; Convenience system control module. |
| A10 | Driver’s side front belt tensioner |
| A11 | Central locking in the trunk lid;
Fuel filler flap; Trunk cover. |
| A12 | Trunk lid control module |
| Fuse panel B (red) | |
| B1 | Rear air conditioning blower |
| B2 | Sound amplifier |
| B3 | Exhaust gas cleaning;
Sound activator. |
| B4 | Rear air conditioning control panel |
| B5 | Right trailer hitch light |
| B6 | Trailer hitch positioning motor |
| B7 | Releasing the trailer hitch |
| B8 | Left trailer hitch lamp |
| B9 | Trailer hitch socket |
| B10 | Sport differential with all-wheel drive |
| B11 | Exhaust gas treatment |
| B12 | Driver’s side rear seat belt pretensioner |
| Fuse panel C (brown) | |
| C1 | Driver assistance systems control module |
| C2 | Audi Phone Box |
| C3 | Front seat electronics;
Right lumbar support. |
| C4 | Side assistant |
| C5 | – |
| C6 | Tire pressure monitoring system |
| C7 | External antenna |
| C8 | Parking heater radio receiver;
Fuel tank monitoring. |
| C10 | Television tuner;
Data exchange and telematics control module. |
| C11 | Opening and starting the vehicle (NFC) |
| C12 | Garage door opener |
| C13 | Reversing camera;
Peripheral cameras. |
| C14 | Central lock;
Right rear light. |
| C15 | Passenger’s rear seat belt pretensioner |
| C16 | Front passenger side belt tensioner |
| Fuse panel D (red) | |
| D1 | Active roll stabilization |
| D2 | High voltage battery |
| D3 | High voltage battery water pump |
| D4 | Power electronic control module |
| D5 | Brake servo |
| D6 | Voltage converter |
| D7 | Engine start |
| D8 | Air conditioning system compressor |
| D9 | Auxiliary battery control module |
| D10 | High voltage battery |
| D11 | Charging system |
| D12 | Radio receiver of parking heater |
| D14 | Thermal management;
Coolant pumps. |
| D15 | Thermal management control module |
| Fuse panel E (brown) | |
| E7 | Front seat heating |
| E9 | Exhaust gas treatment |
| E10 | Rear seat heating;
Rear air conditioning control panel. |
| E12 | Exhaust gas treatment |
