The start of production of the Audi A4 B5 is 1994. With minor changes, it was produced until 2001. At first, only the sedan version was available, the station wagon (Avant) appeared a year later. This material provides information on relay circuits and fuses Audi A4 b5 1994, 1995, 1996, 1997, 1998, 1999, 2000 with an assignment of their elements and locations.
The location of the fuses may differ from the one shown and depend on the vehicle equipment and year of manufacture.
Contents
Passenger compartment
Main fuse box
It is located in the passenger compartment on the left side of the side panel. Inside the lining (3) on the left end side of the dashboard, in the clip there are small plastic pliers (2) for removing the fuses and a crank (4) for emergency operation of the sliding roof. The figure below shows the location of the fuses in the box (1).
The relays are located on the central distribution board under the instrument panel behind the left footwell cover.
Diagram
Protected components
| Purpose of fuses Audi A4 B5 | |
| 1 | 5A Heated washer nozzles |
| 2 | 10A Direction indicators |
| 3 | 5A Headlight washer relay, Lighting: glove box (glove compartment), engine compartment, air conditioner, automatic transmission, instrument panel |
| 4 | 5A License plate lighting |
| 5 | 10A Instrument panel, heated seats, automatic transmission display. mirror switch, pump Airbag outside temperature indicator, navigation system, parking lights |
| 6 | 5A Central locking, reading lamps |
| 7 | 10A ABS system |
| 8 | 5A Phone |
| 9 | 10A Heated mirrors and door locks |
| 10 | 5A Headlight range control, CD – changer |
| 11 | 5A Cruise control [automatic transmission] |
| 12 | 10A Built-in diagnostics |
| 13 | 10A Stop lights |
| 14 | 10A Interior lighting, reading lamps, anti-theft system, passenger visor mirror |
| 15 | 10A Instrument panel, automatic transmission [4-speed], air conditioning, navigation system |
| 16 | 5A ABS system |
| 17 | 10A Heated door locks |
| 18 | 10A Right high beam |
| 19 | 10A Left high beam |
| 20 | 15A Right low beam, headlight corrector |
| 21 | 15A Left low beam, headlight corrector |
| 22 | 5A Right side lights |
| 23 | 5A Left side lights |
| 24 | 25A Windshield wipers, washer pump. Wiper breaker relay |
| 25 | 30A Heater fan, air conditioner |
| 26 | 30A Heated rear window, heated mirrors, air recirculation |
| 27 | 15A Rear wiper |
| 28 | 15A Fuel pump |
| 29 | 15A Engine management |
| 30 | 20A Electric sunroof |
| 31 | 15A Reversing lights, cruise control, automatic transmission, diagnostic socket |
| 32 | 20A Engine management |
| 33 | 15A Cigarette lighter fuse audi a4 b5 |
| 34 | 15A Engine management (ignition / injection) |
| 35 | 30A Trailer socket |
| 36 | 15A Fog lights |
| 37 | 15A Telephone, radio |
| 38 | 15A Trunk lighting, central locking |
| 39 | 15A Emergency lighting (emergency gang) |
| 40 | 25A Signal |
| 41 | 25A ABS system (hydro modulator / pump) |
| 42 | 40A Auxiliary Air Fan |
| 43 | 5A S-pin (central locking, radio, navigation system) |
| 44 | 30A Heated seats |
Fuse number 33 at 15A is responsible for the cigarette lighter.
Diagram of an additional box with relays and fuses
On an 8-seat additional support
18 | ABS hydraulic pump | 50 A |
19 | Electric radiator fan | 40 A |
21 | Radiator fan relay coil | 5 A |
22 | Rear power window lifter | 30 A |
23 | Power window, front | 30 A |
24 | Central locking and anti-theft alarm system | 15 A |
Relay box
On vehicles with extensive equipment, an additional relay board is located behind the main board. Central distribution board – B. The relays are marked in black.
Diagram
Designation
| 1 | Unloading relay for contact X |
| 2 | Horn relay |
| 3 | Relay for headlamp cleaning system |
| 4 | Automatic transmission relay (starter interlock and reversing lights] or, respectively, a jumper for a manual transmission |
| 5 | Intermittent mode relay for cleaning and flushing system |
| 6 | Relay for fuel pump or glow plugs |
Relay Main Board – A
| 3 | Electromagnetic clutch relay (air conditioning) |
| 4 | Signaling device control unit |
| 5 | Signaling device control unit |
| 7 | – |
| 8 | Daytime running light relay |
| 9 | Headlight relay |
| 10 | Fog lamp relay |
| 11 | Control unit for folding mirror |
| 12 | Control unit for folding mirror |
| 13 | – |
| 14 | Fuse for special signaling system [taxi] |
| 15 | – |
| 16 | Fuse for special signaling system [taxi] |
| 17 | Fuse for taximeter [taxi] |
| 18 | System hydraulic pump fuse [ABS] Transmitter Fuse [Taxi] |
Engine compartment
Eelectronics relay board
Located in the mounting block
Diagram
Assignment
| 1 | Heated oxygen sensor relay Glow plug relay I – coolant |
| 2 | Glow plug relay II – coolant |
| 3 | Diesel Direct Injection Relay |
| 4-5 | – |
| 6 | Fuse for the electrical equipment of the engine |
| 7 | Fuse I for glow plugs – coolant |
| 8 | Fuse II for glow plugs – coolant |
| 9 | Glow plug fuse |
Additional relay board
| 1 | Rear fog lights turnip |
| 2 | Fan operating mode relay at maximum speed [Lufter voll auf] |
| 3 | Relay for fan operation in the first stage |
| 4 | Power window control unit relay |
| 5-15 | – |
| 16 | Seat adjustment fuse |
| 17 | – |
| 18 | System hydraulic pump fuse (ABS) |
| 19 | Radiator fan fuse |
| 20 | – |
| 21 | Radiator fan changeover coil relay |
| 22 | Rear power window relay |
| 23 | Front power window relay |
| 24 | Relay for central locking and anti-theft system |
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