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
READ:  Audi A4 and S4 (B5) (1994-2001) - fuse box

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
READ:  Audi Q7 4L (2005-2015) - fuse box


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;


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
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
READ:  Audi A3 and S3 8L (1996–2003) - fuse box

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