Audi A7 (2010 – 2019) fuse and relay

In 2010, Audi introduced the Audi A7 Sportback (body code – 4G first generation) – a five-door car on the A6 platform, so they are very similar. This car was produced in 2011, 2012, 2013, 2014, 2015, 2016 and 2017, 2018, 2019. Our materials contain information on the location of the Audi A7 1G relay and fuse box, its outline and the names of the components.

Audi A7 auto

The purpose of fuses and relays may differ from those shown, depending on the year of manufacture and the level of electrical equipment in your vehicle.



General fuse diagram

  • Electrical splitter in the plenum chamber. The fuses installed in it supply voltage to the radiator fan control units. The splitter is also the connection point for the conductor.
  • Fuse and relay box on the right side of the front panel. The fuses installed in it are indicated on the wiring diagram “SC”. These fuses can be accessed by the customer by removing the side cover on the front panel.
  • Fuse / relay box and CAN bus hub  in the luggage compartment on the right. The fuses installed in it are indicated on the wiring diagram “SF”. These fuses can be accessed by the customer by removing the storage compartment in the rear right side of the luggage compartment.
  • Main fuse box  on the positive battery terminal. A battery emergency shutdown device is combined with this fuse box.
  • Fuse and relay  box in the plenum chamber on the driver’s side (E-Box)  (under the washer reservoir). The cover of this
    fuse box also serves as a bracket for the engine control unit. This fuse box is also called
    E-Box; the fuses in it are indicated on the wiring diagram “SA”.
    real photo of fuse box
  • Junction box and CAN bus node  hub at the  bottom of the left A-pillar.
  • Fuse and relay box  in the area of ​​the onboard supply control unit(under the dash panel in the driver’s side footwell). The fuses installed in it are indicated on the wiring diagram “SD”.
  • Fuse and relay box  on the left side of the front  panel. The fuses installed in it are indicated on the wiring diagram “SB”. These fuses can be accessed by the customer by removing the side cover on the front panel.

Passenger compartment

Box on the left


A7 photo


A7 block in the cabin on the left


Fuse holder -A- (black)
1Electromechanical steering, tow bar, ionizer, switch panel, heated rear seats, electromechanical parking brake.
2Signal, air conditioning, gateway, auto-shielded rearview mirror
4Parking assistance, headlight range adjustment
5Dynamic control, airbag, electronic stabilization control
7«adaptive cruise control»
8Passenger seat sensors, airbag
10Engine sound, night vision auxiliary control unit, “HomeLink” (garage door opener), parking assist
11Video camera image processing
13Steering column switch module
14Terminal 15 (trunk)
15Terminal 15 (Engine compartment)


Fuse holder -B- (brown)
1Infotainment system
2Infotainment system
3Front passenger seat
4Airbag, electronic stabilization control
6Anti-theft alarm
7Electromechanical parking brake
8Interior lighting
9Windshield video camera heating system, light / rain sensor.
10Lumbar support (driver’s seat)
11driver’s seat
12Electronic stabilization system
13sound signal
15Heated front seats
16Dynamic control


Fuse holder -C- (red)
1Clutch pedal
2Fuel pump
3Brake light sensor
4AdBlue control unit (diesel engine) / engine acoustics
6Front door
7Electronic stabilization system
8Motorcycle wipers
9Headlight cleaning system
10Interior lighting, air conditioning
12Sliding sunroof

Box on the right

Photo example of location



Fuse holder -A- (red)
1Infotainment system, CD changer
2Infotainment system (display)


Fuse holder -B- (brown)
1Air conditioning
2Air conditioner (fan)
3Diagnostic interface
4Electric ignition lock
5Electric steering column adjustment
6Steering column switch module
7Electric steering column adjustment
8Light switch
9Windshield display
10Instrument cluster
11Infotainment system, DVD changer

Fuse and relay box


Diagram A7


15A Terminal 15 supply voltage relay
35A Control device
420A ABS
55A Security alarm
620/30/35A Power control unit
115A Interior interior lighting
Control unit, roof electronics
125A Auxiliary heater remote control receiver
1340A ABS control unit
R1Horn relay
Automatic anti-glare rear view mirror
R2Terminal 15 supply voltage relay
R3Vacuum pump relay

Luggage compartment


A7 location


Protected components

Fuse holder -A- (black)
1Tow bar / socket for 220 V
2Tow bar / cup holder with beverage temperature support
3Tow bar / displacement of the front passenger seat from the retracted position
4Electromechanical parking brake
5Electromechanical parking brake
6Front door (front passenger side)
7Exterior lighting at the rear of the vehicle
8Central locking, finishing device
9Heated front seats
11Heated rear seats, air conditioning


Fuse holder -B- (red)
1Seat belt tensioners, left
2Seat belt tensioners, right
3AdBlue tank (diesel engine) / fuel pump
4AdBlue tank (diesel engine) / engine bearing (gasoline engine)
5Touch Control Trunk Lid
6Air suspension, damping adjustment
7Rear door (front passenger side)
9Trunk lid
10Rear Seat Entertainment System
12Rear spoiler (Sportback), sunroof


Fuse holder -C- (brown)
1Infotainment system
2Infotainment system
3Infotainment system, auto-shielded interior rearview mirror
4Rear View Camera / Survey Cameras
5TV tuner
6Tank Leak Detection System
10Lumbar support (front passenger seat)
12Infotainment system


Fuse holder -D- (black)
1Air suspension, shock absorber adjustment, sport differential, electromechanical parking brake
2Clutch travel sensor / automatic transmission
4Rear wiper (Avant)
5Side assist system
6Engine sound
7Infotainment system / Sound amplifier
9Sport differential
10Air conditioning
11Tire pressure monitoring system / Heating of the passenger compartment when the engine is not running
12Start / Stop system
  • Fuse holder -E- (black) – Special vehicles / rear seats
  • Fuse holder -F- (black) – Heated rear window


  • R1 – Not used
  • R2 – Rear window heater relay
  • R3 – Relay power socket
  • R4 – Terminal 15, supply voltage relay
  • R5 – Adaptive suspension compressor relay
  • R6 – Not used

Additional Information

The fuses for the cigarette lighter in the Audi A7 are located in the luggage compartment, under the trim on the right.

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Comments 1

  • Audi A7 2013 sportblack

    I’m facing an issue with the led lamps on the bar of the doors. Apparently, the led light door from the passenger doesn’t light up as the driver is on, in the back doors, the light is off in the back driver’s door and is on in the back of the passenger’s door. Any idea?? thanks

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