Fuses and relay Audi A6 (C7)

For the Audi A6 (C7) (4G) 2011, 2012, 2013, 2014, 2015, 2016, 2017 model year.

Cigarette lighter fuse – (fuse box in luggage compartment, fuse №15/20A and fuse №16/20A)

Fuse box in passenger compartment.

fuse box location.

The fuses are located at the front left and right of the cockpit.

 

Driver side of the cockpit: fuse panel cover.

 

fuse box diagram.

 

legend.

Fuse Amps Circuits Protected
1 5A TCS/ESP button
Control unit for the air quality improvement system
Power steering control unit
Heated seat control unit
Trailer detection control unit
Electric parking brake
Passenger's side airbag deactivation light
2 5A Automatic anti-dazzle rear-view mirror
3 Not used  
4 5A Control unit
5 5A ABS control unit
6 5A Air quality sensor
Refrigerant pressure and temperature sensor
Humidity sender
7 10A Adaptive cruise control unit
8 5A Airbag control unit
Seat occupied recognition control unit
9 5A Data bus diagnostic interface
10 5A Garage door operation control unit
Night vision system control unit
Or
Garage door operation control unit
Night vision system control unit
Control unit for sound transmitted through the vehicle body structure
11 10A Camera control unit
12 5A Active steering control unit
13 5A Data bus diagnostic interface
14 10A Air-conditioning control unit
15 10A ABS control unit
16 30A Driver's door control unit
17 7,5A Front passenger's seat adjustment
18 35A Active steering control unit
19 20A Sliding roof
20 15A Rear left door control unit
21 5A Front passenger's seat adjustment switch 
22 30A Additional heater control unit
23 20A Sliding roof
or not used
24 15A Driver's door control unit
or not used
25 5A Clutch pedal position sensor
26 25A Fuel pump control unit
27 5A Brake light switch
Brake pedal position sensor
28 7,5A Exhaust gas flap control unit
Exhaust gas flap control unit 2
Or
Reductant control unit
(5A also used)
or not used
29 30A Rear left door control unit
30 7,5A Driver's seat adjustment
31 15A Horns
Horn relay
32 30A Wiper control unit
Wiper motor
33 5A Rain and light sensor
34 5A Driver's seat adjustment switch
35 15A Front passenger's door control unit
36 15A Control unit, rear right door
37 15A Fuse and relay box in luggage compartment
38 30A Fuse box No. 2 in passenger compartment
39 15A Fuse and relay box in engine compartment, fuses 3, 12, 13
40 40A Engine control unit
Starter motor relay
Starter motor, secondary relay

 


Front passenger side cockpit: fuse panel with plastic bracket.

 

fuse box diagram

 

legend. 

Fuse Amps Circuits protected
1 5A Head-up display control unit
2 5A Vehicle information control unit
3 5A CD changer
DVD
4 7,5A Information display control unit
Multimedia control unit
5 5A Chip card reader
Traffic Message Channel (TMC) antenna
6 5A Control panel control unit
7 5A Control unit, steering column electronics
8 7,5A Headlight range control unit
Power output control unit for the headlight
9 Not used  
10 7,5A Power output control unit for the headlight
11 Not used  
12 Not used  
13 10A Climatronic control unit
14 40A Fresh-air blower control unit
15 10A Diagnostic connector (16)
16 5A Immobiliser
17 5A Steering column lock control unit
18 10A Control unit, steering column electronics
19 25A Steering column adjustment control unit
20 5A Lighting switch
21 Not used  
22 Not used  
23 Not used  
24 Not used  

 


Fuse and relay box №1 in engine compartment.

fuse box diagram.

 

legend.

Fuse Amps Circuitd protected
1 5 Terminal 15 voltage supply relay
2 Not used  
3 5 Control unit
4 20 ABS control unit
5 5 Security alarm system
6 35 Power supply control unit
7 20 Power supply control unit
8 30 Power supply control unit
9 30 Power supply control unit
10 30 Power supply control unit
11 5 Front interior light(s)
Control unit, roof electronics
12 5 Additional heater remote control receiver
13 40 ABS control unit
14 Not used  
R1   Horn relay
Or
Automatic anti-dazzle rear-view mirror
R2   Terminal 15 voltage supply relay
R3   Vacuum pump relay
or not used
R4   Not used

 


Fuse and relay box №2 in passenger compartment.

fuse box diagram.

 

legend.

Fuse 1 (40.0 A) – Heating element(s)
Fuse 2 (60.0 A) – Heating element(s)
Relay R1 – Low-output heating relay
Relay R2 – High-output heating relay
Relay R3 – Additional air heater control unit or not used

 


Additional fuse in passenger compartment.

Fuse 1 (15.0 A) – Seat adjustment
Fuse 2 (15.0 A) – Passenger's seat adjustment

 


Fuse and relay box in luggage compartment.

fuse box location.

The fuses are located of the behind the trim on the right side of the luggage compartment. 

 

fuse box diagram.

 

legend.

Fuse Amps Circuits protected
1 15A Trailer detection control unit
2 20A Trailer detection control unit
3 20A Trailer detection control unit
4 30A Handbrake control unit
5 30A Handbrake control unit
6 30A Front passenger's door control unit
7 30A Comfort system control unit
8 20A Comfort system control unit
9 15A Seat ventilation
10 5A Connector
11 30A Air-conditioning control unit
Heated seat control unit
12 Not used  
13 25A Seat belt pretensioner
14 25A Seat belt pretensioner
15 20A Cigarette lighter
12V socket
DC-AC converter with socket, 12V – 230V
16 20A Rear cigarette lighter
Additional 12V sockets
17 5A Electric parking brake
18 15A Adaptive suspension control unit
19 30A Control unit, rear right door
20 30A Comfort system control unit
21 30A Control unit
22 5A Telephone
Aerial selection control unit
23 30A Digital sound package control unit
24 Not used  
25 30A Digital sound package control unit
Information display control unit
Radio
(20A also used)
26 5A Fuel tank leakage control unit
27 Not used  
28 15A Engine mount control unit
Reductant control unit
Or
Reductant control unit
or not used
29 Not used  
30 Not used  
31 7,5A Radio
32 A Multimedia control unit
Information display control unit
Information display
33 5A Automatic anti-dazzle rear-view mirror
34 5A Rear-view camera system
35 5A TV tuner
36 Not used  
37 5A Terminal 15 voltage supply relay
38 5A Handbrake control unit
39 5A Adaptive suspension control unit
40 5A Comfort system control unit
Selector lever control unit
Clutch pedal position sensor
41 5A Parking assistance control unit
42 5A Connector
43 5A Voltage regulator(s)
44 5A Lane change assist control unit
45 5A Diagnostic connector (16)
Power supply control unit
46 5A 4WD control unit
47 10A Windscreen wiper motor
or not used
48 Not used  
49 40A Adaptive suspension compressor relay
50 40A Voltage regulator(s)
51 40A Heated rear windscreen relay
52 40A Voltage regulator(s)
53 35A 4WD control unit
54 30A Reductant metering system relay
or not used
55 Not used  
56 1A Control unit
or not used
57 Not used  
R1   Not used
R2   Heated rear windscreen relay
R3   Power socket relay
R4   Terminal 15 voltage supply relay
R5   Adaptive suspension compressor relay
R6   Reductant metering system relay
Or
Cooling fan relay
or not used

 


Main fuse box in luggage compartment.

Fuse 1 (150.0 A) – Main fuse
Fuse 2 (150.0 A) – Main fuse (110A also used)
Fuse 3 (150.0 A) – Main fuse
A – Battery isolation/igniter

 


Fuse and relay box in engine compartment.

fuse box diagram.

 

legend.

Fuse Amps Circuits protected
1 15A Automatic transmission control unit
2 5A Oil level and temperature sensor
3 5A Engine control unit
4 5A Engine control unit
5 5A Mass airflow meter
6 15A Engine control unit
7 10A Fuel metering solenoid
Fuel pressure control solenoid
8 Not used  
9 5A Voltage regulator(s)
Engine control unit
10 10A Oxygen sensor in front of the catalytic converter
11 5A Cooling fan control unit
Cooling fan control unit 2
12 5A Automatic transmission control unit
13 Not used  
14 5A Exhaust gas recirculation coolant pump
15 Not used  
16 15A Low-output heating relay
High-output heating relay
Left electro-hydraulic engine mounting solenoid
Right electro-hydraulic engine mounting solenoid
Exhaust gas cooler solenoid
Turbo pressure control solenoid
Crankcase breather heater
17 Not used  
18 Not used  
19 80A Glow plug
20 Not used  
R1   Not used
R2   Starter motor relay
Starter motor, secondary relay
R3   Glow plug control unit
R4   Terminal 30 voltage supply relay
R5   Not used
R6   Not used

 


Additional fuses in engine compartment.

Fuse 1 (40.0 A) – Radiator
(60A also used)
(80A also used)

Fuse 2 (40.0 A) – Radiator
(60A also used)
(80A also used)