Audi 100 C3 is the common name for a whole family of passenger cars. In the United States, they were sold under the name Audi 5000. And the Audi 200 is a more expensive version of the Audi 100, with a higher level of equipment. But in essence, they are all the same model. Audi 100 C3 (44 body) was produced in 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989 and 1990. This material provides information on the location of fuse and relay boxes with their diagrams and locations.
Location
The main box is located in the engine compartment, near the wipers.
The rest are in the car. More details on the diagram.
1 – ignition switch (possible position); 2 – additional relay box; 3 – control unit for the cruise control system; 4 – direction indicator relay; 5 – diagnostic unit; 6 – air conditioner control unit; 7 – altitude sensor; 8 – control unit for the KE-Jetronic fuel injection system; 9 – front seat control unit with electric adjustment; 10 – control unit for anti-blocking system of brakes; 11 – battery (for cars with air conditioning); 12 – engine fuel pump relay; 13 – control unit for lamps in the rear lights.
Main box
To access, remove the protective cover by unfastening the clips. Your fuse locations are indicated on the back of the guard and may differ from this material.
Diagram
Designation
| 1 | Fog lights |
| 2 | Direction indicators (in alarm mode) |
| 3 | Sound signal. Cigarette lighter. Card lighting lamp. Interior lighting plafond. Passenger mirror lamp. Lower passenger compartment lamp |
| 4 | Stop lamp. Luggage compartment lamp |
| 5 | Spare |
| 6 | Right headlight (side light). Right tail light (side light) |
| 7 | Left headlight (side light). Left tail light (side light) |
| 8 | Right headlight (high beam). Control lamp of inclusion of a high beam of headlights |
| 9 | Left headlight (high beam) |
| 10 | Right headlight (low beam) |
| 11 | Left headlight (low beam) |
| 12 | Instrument cluster lighting lamps. Reversing lamps. On-board control system unit |
| 13 | Fuel electric pump |
| 14 | Instrument lighting lamps. License plate lighting lamps. Glove box lighting lamp. Engine compartment lamp |
| 15 | Windshield wiper motor. Direction indicators (in direction indication mode) |
| 16 | Heated rear window |
| 17 | Heater fan motor. Air conditioner fan motor |
| 18 | Sunroof motor |
| 19 | Centralized locking system for door locks. Outside rear-view mirrors drive motor |
| 20 | Front seat heating elements |
| 21 | Rear cigarette lighter |
| 22 | Diesel engine heater |
| A | Spare |
| B* | Memory device of the electric drive of adjustment of position of the front seats |
| E* | Window regulator motors |
| F | Towing device |
| I | Spare fuses |
Additional relay box
Diagram
Assignment
| Decoding of the additional relay unit | ||
| N relay | Name | Catalogue number |
| I | Brake pad wear warning lamp relay | 431 951 253 A |
| II | Seat heating relay | 431 951 253 A |
| III | Impulse relay | 813 906 064 |
| Additional starting relay for the automatic vehicle activation system | 431 951 253 A | |
| IV | Delay Relay | 433 919 577 |
| Relay for turning on and off the heated rear window of the automatic vehicle activation system | 431 951 253 A | |
| V | Relay for warning lamp of emergency oil pressure on the car: | |
| – with 4-cylinder petrol engines | 433 919 082 | |
| – with 5-cylinder petrol engines | 433 919 082 | |
| – with 5-cylinder diesels | 433 919 082 A | |
| Seat belt warning lamp relay | 443 919 469 | |
| VI | Relay for turning on the buzzer of the unfastened seat belts | 857 919 439 |
| Fog light relay | 431 951 253 F | |
| Relay for switching on outdoor lighting when driving in the daytime | 431 951 253 D | |
| Anti-theft relay | 437 927 827 | |
| alarms | ||
| VII | Overvoltage relay | 437 927 825 |
| VIII | Time delay relay | 431 951 253 B |
| IX | Safety relay | 431 951 253 B |
| air conditioner | ||
| X | Cooling fan motor turn-on relay | 431 951 253 B |
| XI | Cooling fan motor turn-on relay | 431 951 254 B |
| XI – XII | Cooling fan electronic control unit | 443 907 393 |
| XIII | Reserve | |
| XIV | Relay for switching on the rear window wiper | 171 955 529 |
| XV | Relay for cooling injectors | 431 951 253 A |
| XVI | Headlamp low beam relay | 431 951 253 C |
| Turn signal relay | 431 951 253 A | |
| Electronic control unit | 55 906 086 | |
| XVII | Headlamp high beam relay | 431 951 253 A |
| High Power Horn Relay | 431 951 253 A | |
| Fuel enrichment relay | 431 951 253 C | |
| XVIII | Ignition relay | 431 951 253 A |
| Oxygen conditioner sensor relay | 431 951 253 A | |