Audi A6 4G (C7, 2010 - 2018) fuses and relays

The fourth generation of the Audi A6 (C7) business sedan was launched in early 2011. The presentation of the car took place at the North American International Auto Show in Detroit. The car is characterized by pronounced sporty proportions, which compares favorably with many rivals in the business class. In this material, we will analyze in detail the fuse circuits of the Audi A6 (C7) of the 4th generation of 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018  of release.

General view of the car
Here you will find the locations and photos of the mounting blocks. Separately, we note the fuses responsible for the cigarette lighter and fuel pump.

In the luggage compartment

Location of the fuse box in the luggage compartment of the car
The block is located on the right side of the trunk, under the net. To access it, you need to remove the casing.


Access example.


General form.

Fuse diagram in the trunk
No. Description A
1 Trailer detection control module 15
2 Trailer detection control module 20/10
Cup holder with heating and cooling element
3 Trailer detection control module 20
4 Parking brake module 30
5 30
6 Front Passenger Door Control Module 30
7 Comfort control module 30
8 20
9 seat ventilation 15
10 connector 5
11 Air conditioner control module 30
Seat heating control module
12 empty -
13 Seat belt pretensioner 25
14 25
15 Audi A6 cigarette lighter fuse 20
Socket 12V
DC-AC converter with socket, 12 V - 230 V
16 Rear cigarette lighter 20
Additional sockets 12V
17 Electric parking brake 5
18 Adaptive Suspension Control Module 15
19 Rear Right Door Control Module 30
20 Comfort control module 30
21 Control device 30
22 telephone 5
23 Audio control module 30
24 Adjustable rear spoiler control module 20
25 Audio control module 30/20
Information display control module
Radio
26 Fuel Tank Leak Control Module 5
27 empty -
28 Engine Mount Control Module 15
Reductant control module
29 empty -
30 empty -
31 radio tape recorder 7.5
32 Multimedia control module 7.5
Information display control module
Information display
33 Automatic anti-glare rear view mirror 5
34 Rear view camera system 5
35 TV tuner 5
36 empty -
37 Terminal 15 supply voltage relay 5
38 Parking brake control module 5
39 Adaptive Suspension Control Module 5
40 Comfort control module 5/7.5
Clutch position sensor
Selector lever control module
41 Parking Assist Control Module 5
42 empty -
43 Voltage regulators 5
44 Lane Change Assist Control Module 5
45 Diagnostic socket (16) 5
Power management module
46 4WD control module 5
47 empty -
48 empty -
49 Adaptive Suspension Compressor Relay 40
50 Voltage regulator(s) 40
51 Heated rear windshield relay 40
52 Voltage regulator(s) 40
53 4WD control module 35
54 Reductant Dosing System Relay (If Equipped) 30
55 Main fuse (if installed) 15
56 empty -
57 empty -
R1 Not used
R2 Heated rear window relay
R3 Relay Power Socket
R4 Terminal 15 supply voltage relay
R5 Adaptive Suspension Compressor Relay
R6 Not used

In the cabin

Location of the fuse box in the passenger compartment on the driver
The first block is located at the end of the dashboard behind a plastic cover on the driver's side.


Access example.

Description of the elements in the block on the driver's side of the Audi A6
 
Panel -A- (black)
No. A Purpose
1 5 Switch panel, seat heating, start assist, control unit, tow bar
2 5 Auto-shielded interior rearview mirror
3 10 Exhaust System (Diesel)
4 5 Chassis control sensor
5 5 ESP control unit
6 5
  • 1 control unit (on-board network),
  • 2 control unit (on-board network)
7 10 Audi adaptive cruise control
8 5 Airbag control unit, front passenger seat sensors
9 5 Gateway
10 5 "HomeLink" (Garage Door Opener), Night Vision Assist Control Unit
11 10 Image processing ("Audi active lane assist", "Audi adaptive cruise control")
12 5 Dynamic control
13 15 terminal 15 in luggage compartment
14 30 terminal 15 on the connection panel (passenger's side)
15 15 terminal 15 in the engine compartment
16 40 Starter
Panel -B- (brown)
No. A Purpose
1 5 Gateway
2 10 air conditioner;
3 10 ESP control unit
4 30 Front door (driver's side)
5 7.5 Electric seat adjustment (driver's seat)
6 35 Dynamic control
7 20 sliding sunroof
8 15 Rear door (driver's side)
9 5 Lumbar support (front passenger seat)
10 30 Heater
11 20 Sliding sunroof, rear spoiler
12 15 Front door (driver's side)
Panel -C- (red)
No. A Purpose
1 5 clutch pedal
2 25 Fuel pump fuse
3 5/5 Brake Light Sensor/Brake Pedal Sensor System
4 5/15 SCR tank (diesel) / engine acoustics
5 30 Rear door (driver's side)
6 7.5 Electric seat adjustment (front passenger seat)
7 15 Horn
8 30 Windscreen wipers
9 5 Light/rain sensor
10 5 Lumbar support (driver's seat)
11 15 Front Door (Passenger Side)
12 15 Rear Door (Passenger Side)

Location of relay boards in the cabin
Additional boards with relay modules are located under the dashboard.

Relay block #1
No. Description A
1 heating elements 40
2 60
R1 Low power heating relay
R2 High power heating relay
R3 Additional air heater control unit
Block #2
No. Description A
1 Terminal 15 supply voltage relay 5
2 empty -
3 Control device 5
4 ABS control unit 20
5 Security alarm 5
6 Power control unit 35
7 Power control unit 20
8 Power control unit 30
9 Power control unit 30
10 Power control unit 30
11 Interior interior lighting 5
Control unit, roof electronics
12 Auxiliary heater remote control receiver 5
13 ABS control unit 40
14 empty -
R1 signal relay
Automatic anti-glare rear view mirror
R2 Terminal 15 supply voltage relay
R3 Vacuum pump relay
R4 -

Location of the second fuse box in the passenger compartment of the car
The second fuse box is located behind a plastic cover on the passenger side.

Fuse diagram in the block on the passenger side
Panel -A- (black)
No. A Purpose
1 5 Head-up display
2 5 MMI display front
3 5 CD/DVD changer
4 7.5 Front center console MMI
5 5 Chip card reader (depending on the country)
6 5 Dashboard
7 5 Steering switch module
8 5/7.5 Headlight range adjustment/corner light
10 7.5 Headlight on the left (headlight with cornering light)
11 5 Additional heater
Panel -B- (brown)
No. A Purpose
1 10 air conditioning;
2 40 air conditioner fan
3 10 Diagnostic interface
4 5 Electric ignition switch
5 5 Electric steering column adjustment
6 10 Steering switch module
7 25 Electric steering column adjustment
8 5 Control unit 1 (on-board network)

In the engine compartment


The fuse box is located behind the protective lining on the left side of the engine compartment.

Diagram
No. Description A
1 Automatic transmission control unit 15
2 Oil level and temperature sensor 5
3 The engine control unit 5
4 The engine control unit 5
5 Fuel metering valve 10
6 The engine control unit 15
7 camshaft valve 15
Exhaust camshaft solenoid valves
coolant circulation pump
8 empty -
9 Voltage regulators 5
10 Oxygen sensor before catalytic converter 15
Oxygen sensor behind catalytic converter
11 Fan control unit 5
Cooling fan control unit 2
12 Automatic transmission control unit 5
13 Transmission oil cooling valve 5
14 Ignition coils 1 - 6 20
15 empty  
16 Secondary air pump relay 15
additional coolant pump
Canister purge valve
intake manifold adjustment valve
Oil pressure control valve
Refrigerant circulation solenoid valve
17 Oxygen sensors behind the catalytic converter 15
18 empty -
19 secondary air pump 50
20 empty -
R1 Secondary air pump relay
R2 Starter relay
R3 Power supply relay
R4 Main relay
R5 Relay, additional water pump
R6 empty
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