Audi A6 (C4) fuse box and relay Diagrams (1994–1997)

The Audi A6 C4 1994-1997 is a premium mid-size sedan produced by Audi AG, a German automaker. It is the successor of the Audi 100 and is the first generation of the Audi A6 series. The A6 C4 1994-1997 is known for its luxurious features, reliable performance, and advanced safety features. It is equipped with various electrical components such as the fuse box and relay that play a crucial role in ensuring the smooth operation of the car.

In this article, we will take an in-depth look at the Audi A6 C4 1994-1997 and its electrical components, including the fuse box and relay. We will discuss how they function, their locations, and common issues that may arise with them.

Fuse Box in Audi A6 C4 1994-1997

The fuse box in the Audi A6 C4 1994-1997 is responsible for protecting the electrical system from electrical overload by breaking the circuit when a current exceeds a predetermined amperage. The fuse box is located in the driver’s side dashboard and can be easily accessed by removing the cover.

The fuse box contains a diagram that helps identify the location of each fuse, as well as the amperage rating. The fuses are color-coded based on their amperage rating, which makes it easy to identify and replace a faulty fuse. The most common issues with the fuse box are blown fuses, which can be easily replaced by using the appropriate amperage rating.

Relay in Audi A6 C4 1994-1997

The relay in the Audi A6 C4 1994-1997 is an electromechanical switch that controls the flow of electricity to different components of the car, such as the engine, headlights, and windshield wipers. The relay is located in the engine compartment and is protected by a cover.

There are several relays in the Audi A6 C4 1994-1997, each with a specific function. The most common issues with relays are failure due to wear and tear, which can cause various electrical issues in the car. Replacing a faulty relay is relatively simple and can be done by following the manufacturer’s instructions.

MUST READ: DYI – How to Check Car Fuses?

(1994-1997) Audi A6 (C4) fuse box and relay with Diagram

Audi A6 C4 1994–1997 Dashboard

1. Auxiliary relay panel II
2. Central electric panel with relay holder
3. Fuse panel
4. Connector station I
5. Auxiliary relay panel I
6. Emergency flasher relay -J2-
7. Radio/parking light warning buzzer -J152-
8. Electronic control box
9. Board computer range calibration regulator -E46-
10. Servotronic control module -J236-
11. Connector station II
12. Auxiliary relay panel III
13. Shift lock warning buzzer -H9-
14. Airbag system connector
15. A/C control head -E87-
16. Airbag triggering unit -J178-
17. Connector station III

Instrument Panel Fuse Block

No.	Assignment/Designation	Amps
1	High Beam Headlight, Right Instrument Cluster	10A
2	High Beam Headlight, Lett	10A
3	Headlight, Right	10A
4	Headlight, Left	10A
5	Parking Light, Right Tail Light, Right Brake Light, Right	5A
6	Parking Light, Left Tail Light, Left Brake Light, Left	5A
7	Engine Compartment Light Glove Compartment Light License Plate Light	10A
8	Luggage Compartment Light Footwell Light, Left Footwell Light, Right	15A
9	Brake Light Switch Brake Light	10A
10	Emergency Flasher Switch Central Locking / Alarm System / Interior Light Delay Control Module	15A
11	Fresh Air Blower	30A
12	Rear Window Defogger Mirror Heating Elements	30A
13	Windshield Wiper Motor Washer Nozzle Heaters Turn Signals	25A
14	Seat Belt Warning Light Lamp Control Module, Rear	15A
15	Instrument Cluster Mirror Adjustment Switch	5A
16	Rear Fog Light	15A
17	FP (Fuel Pump)	15A
18	Rear Window Wiper Motor (Wagon)	15A
19	Dual Horn Relay Data Link Connector	25A
20	Cruise Control Switch	5A
21	ABS	15A

Auxiliary relay panel I

No.	Assignment/Designation
1	Control cooling fan with engine off Relay
2	Coolant FC (Fan Control) Relay
3	Fog Light Relay
4	Intensive Washer Pump Relay
5	–
6	Intensive Washer Pump Relay
7	Daytime Running Lights Relay (Switch-On), J90 (Canada Only)
8	Selector Lever Light Relay. J307
9	A/C Clutch Relay, J44
10	A/C Clutch Control Module, J153
11	Rear Window / Wiper Washer Relay, J31
12	–
13	Speaker Power Supply Relay, J225
14	Lamp Control Module, Rear, J124
15	Lamp Control Module, Rear, J124
16	Control Module Alarm Horn, J31
17	A/C Relay, J32
Circuit breakers
A1	Automatic Window Closing Circuit Breaker (S99)
A2	Central Locking System Motor Circuit Breaker (S85)
A3	Power Window Circuit Breaker (S43)
A4	Radio Circuit Breaker (S84)
A5	Heated Seat Circuit Breaker (S79)
B1	Memory Seat Adjusting Circuit Breaker (S44)
B2	Power Seat Circuit Breaker (S80)
B3	Door Lock Heating Element Circuit Breaker (S86)
B4	–
B5	Sunroof Circuit Breaker (S83)

Auxiliary relay panel II

No.	Assignment/Designation
1	Power Window Control Module, J139
2	Power Window Control Module, J139
3	Automatic Window Closing Relay, J261
4	ABS Combi Relay, J156
5	Shift Lock Control Module, J221
6	Automatic Transmission Relay, J60
7	Electronic Damping Control Module Fuse, S31
8	Coolant Fan Fuse, S42

Auxiliary relay panel III

No.	Assignment/Designation
1	–
2	Airbag Control Light Relay, J312
3	–
4	–
5	Switch unit for water pump, relay fan stage 1
6	–
7	Oxygen sensor heater
8	Pump air in exhaust manifold

Central electric panel with relay holder

No.	Assignment/Designation
1	Load Reduction Relay, J59
2	Dual Horn Relay, J4
3	Headlight Washer System Relay, J39
4	Back-Up Light Relay (Manual Transmission), J219 PNP (Park/Neutral Position) Relay (Automatic Transmission), J226
5	Washer / Wiper Intermittent Relay, J31
6	FP (Fuel Pump) Relay, J17

In conclusion, the Audi A6 C4 1994-1997 is a reliable and luxurious car that offers advanced features for its time. The fuse box and relay are crucial electrical components that ensure the smooth operation of the car. Proper maintenance and timely replacement of faulty fuses and relays can prevent various electrical issues and prolong the life of the car.