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 article, we will take a detailed look at the fuse box diagrams for the Audi A6 (C7) of the 4th generation of 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018  of release.

Here you will find the locations and photos of distribution boxes. The fuses responsible for the “Cigarette lighter” and “Fuel Pump” are highlighted in bold.

In the luggage compartment

The distribution box is located on the right side of the trunk, under the net. To access it, you need to remove the casing.

Access example.

General view.

Diagram
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 passenger compartment

On the driver's side

The first block is located at the end of the dashboard behind a plastic cover on the driver's side.

Access example.

Diagram
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	Power 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	Power 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)

Under the dashboard

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	-

On the passenger's side

The second fuse box is located behind a plastic cover on the passenger side.

Diagram
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