Hi-ya!,today. In the following paragraphs you will see a description of fuses and relays Audi A4 and S4 (B5) (1994-2001) – fuse box
Include with pics of box diagrams along with their locations. Highlighted the cigarette lighter fuse (as the favourite thing people look for).
Get useful information on Assistance fuses, updating a fuse, and more.
Audi A4 and S4 (B5) – fuse box diagram
Year of production: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001.
Fuse box in the engine compartment
Type 1 – fuse box diagram
| 1 | Engine coolant heater relay 2, high horsepower (diesel) – if fitted |
| 2 | Engine coolant heater relay 1, low horsepower (diesel) – if fitted |
| 3 | Engine control relay (EC) |
| F1 | – |
| F2 | (15A) Engine Management (1998 ^) |
| F3 | (15A) Engine Management (^ 1997) |
| F4 | (50A) Engine2 coolant heater (1.9TDI) – if fitted |
| F5 | (25A) Engine coolant heater (1.9 TDI) – if fitted |
| F6 | (80A) Glow plugs (1.9TDI) |
Type 2 – diagram of the fuse box
| 1 | Oxygen sensor system relay (2.6 ABC) |
| 2 | Engine coolant heater element relay II |
| 3 | Diesel injection system relay |
| F1 | – |
| F2 | – |
| F3 | (20A) Injection system |
| F4 | (50A) Engine coolant heating element |
| F5 | (25A) Engine coolant heating element |
| F6 | (15A) Glow plug system |
Fuse box in the passenger compartment of the Audi A4 (B5).
Location of the fuse box
The device is under a cover at the end of the dashboard on the left side. To open the cover, insert a screwdriver into the slot under the cover and pry it open. A crank for manual activation of the electric sunroof is located on the inside of the fuse box cover. There are two spare fuses in the row on the right.
Type 1
| F1 | (5A) Heated washer nozzles |
| F2 | (5A) Indicators, hazard lights |
| F3 | (5A) Glove box lamp;
Instrument panel lighting; Headlight washer relay. |
| F4 | (5A) License plate lamp |
| F5 | (5A) Switch lighting;
Instrument panel lighting. |
| F6 | (5A) Central locking control module |
| F7 | (10A) ABS control module |
| F8 | (5A) Telephone |
| F9 | – |
| F10 | – |
| F11 | (5A) Cruise control |
| F12 | (10A) Diagnostic socket |
| F13 | (10A) Stop lamps |
| F14 | (10A) Indoor lamps;
Cosmetic mirror lamps. |
| F15 | (10A) Instrument panel, control modules |
| F 16 | (5A) ABS control unit |
| F17 | (10A) Door lock heating |
| F18 | (10A) Right-hand traffic light |
| F19 | (10A) Left main beam |
| F20 | (10A) Dipped headlamps – right;
Headlamp beam adjustment. |
| F21 | (10A) Left dipped beam headlamps;
Headlight adjustment. |
| F22 | (5A) Side lamps – right;
Rear lamps – right. |
| F23 | (5A) Side lamps – left;
Rear lamps – left. |
| F24 | (25A) Windscreen wipers and washers |
| F25 | (30A) Heater blower motor;
Air conditioning components. |
| F26 | (30A) Heated rear window;
Heated mirrors. |
| F27 | (15A) Rear window wiper |
| F28 | (15A) Fuel pump |
| F29 | (20A) EVAP valve;
Heating of the lambda probe, in the intake manifold valve. |
| F30 | (20A) Sunroof |
| F31 | (15A) Reversing lamps, control modules |
| F32 | (20A) Ignition coils;
Mass air flow sensor; ECM. |
| F33 | (15A) Cigarette lighter |
| F34 | (15A) Injectors |
| F35 | (30A) Trailer socket |
| F36 | (15A) Fog lights;
Rear fog lights. |
| F37 | (20A) Telephone transmitter / receiver module;
Audio unit. |
| F38 | (15A) Cargo area lamp;
Central lock. |
| F39 | (15A) Hazard warning lights |
| F40 | (25A) Horn |
| F41 | (25A) ABS solenoid valve relay |
| F42 | (30A) Auxiliary heater |
| F43 | – |
| F44 | (30A) Seat heating |
Type 2
| F1 | (5A) Heated windshield washer nozzles |
| F2 | (10A) Indicators |
| F3 | (5A) Headlamp washers;
Glove box light; Engine compartment light; Air conditioning (AC); Automatic transmission (AT); Instrument panel. |
| F4 | (5A) License plate lamps |
| F5 | (10A) Instrument panel;
Heated seats; Electric door mirrors; Gear lever display; SRS warning light; Outside air temperature indicator; Bulb failure warning module; Navigation system; Parking aid; Air conditioning (AC); Catalyst; Rear window blind; Telephone / telematics. |
| F6 | (5A) Central locking |
| F7 | (10A) Anti-lock brake system (ABS);
BPP switch; CPP switch. |
| F8 | (5A Telephone / Telematics |
| F9 | (10A) Heated door mirrors;
Heated door locks; Gear lever display; Outside air temperature indicator. |
| F10 | (5A) Automatic headlight adjustment |
| F11 | (5A) Cruise control (with AT) |
| F12 | (10A) Data link connector (DLC) |
| F13 | (10A) Stop lamps |
| F14 | (10A) Indoor lamps;
Reading lights; Alarm system; Cosmetic mirror lamp; Electric chair memory. |
| F15 | (10A) Instrument panel;
Electric windows; Automatic transmission (AT); Air conditioning (AC); Navigation system. |
| F 16 | (5A) Anti-lock brake system (ABS);
Electronic Stability Program (ESP). |
| F17 | (10A) Heated door locks;
Navigation system; Self-leveling suspension; Two-way radio. |
| F18 | (10A) Right headlight – high beam |
| F19 | (10A) Left head lamp – high beam |
| F20 | (10A / 15A) Right headlight – low beam, headlight adjustment |
| F21 | (10A / 15A) Left headlight – low beam, headlight adjustment |
| F22 | (5A) Side lamps, rear right |
| F23 | (5A) Side lamps, rear left |
| F24 | (25A) Windshield washer and wiper system;
Intermittent washer and windshield wipe relay. |
| F25 | (30A) AC blower motor, heater;
Air conditioning (AC). |
| F26 | (30A) Heated rear window;
Heated door mirrors; Air conditioning and heater recirculation. |
| F27 | (15A) Rear window wiper motor;
Heated steering wheel; Switches on the steering wheel. |
| F28 | (15A / 20A) Fuel pump;
Fuel lifting pump. |
| F29 | (20A) Engine management |
| F30 | (20A) Sunroof |
| F31 | (15A) Reversing lamps;
Cruise control; Automatic transmission (AT); Data Link Connector (DLC); Anti-glare interior mirror; EGR solenoid. |
| F32 | (20A) Engine management |
| F33 | (15A) Cigarette lighter |
| F34 | (15A) Engine management |
| F35 | (30A) Trailer socket |
| F36 | (15A) Front fog lamps;
Rear fog lights. |
| F37 | (20A) Telephone, audio system |
| F38 | (15A) Trunk lid lamp, tailgate lamp, central locking |
| F39 | (15A) Warning lamps |
| F40 | (25A) Horn |
| F41 | (25A) Anti-lock brake system (ABS) |
| F42 | (25A) Electronic Stability Program (ESP) |
| F43 | EGR solenoid valve;
Engine Coolant Temperature (ECT) sensor (1999 ^). |
| F44 | (30A) Heated seats |
Relay Audi A4 B5.
Type 1
| 1 | Ignition auxiliary circuits relay |
| 2 | Horn relay |
| 3 | Headlight washer pump relay |
| 4 | I – AT transmission system relay |
| 5 | Intermittent windshield washer and wiper relay |
| 6 | Fuel pump relay |
| 7 | – |
| 8 | Daytime running lights relay |
| 9 | High beam headlamp relay |
| 10 | Fog lamp relay |
| 11 | Exterior mirror control module |
| 13 | Gearbox system relay II – AT |
| 14 | Rear washer and wiper relay |
| 15 | – |
| 16 | A / C compressor clutch relay |
| 17 | Bulb failure warning module |
| 19 | – |
| F1 | – |
| F2 | (20A) Alarm system |
| F3 | (10A) Taximeter |
| F4 | (50A) ABS |
| F5 | (50A) ABS |
Type 2 (before 1997)
| 1 | Ignition auxiliary circuits relay |
| 2 | Horn relay – double sound |
| 3 | Headlight washer pump relay |
| 4 | Most, from MT |
| 5 | Intermittent washer and windshield wipe relay |
| 6 | Fuel pump relay;
Glow plug relay. |
| 7 | Taxi alarm system control module |
| 8 | Taxi alarm system control module |
| 9 | High beam headlamp relay |
| 10 | Front fog lamp relay |
| 11 | Side mirror control module, with folding mirrors |
| 12 | Side mirror control module, with folding mirrors |
| 13 | Starter brake switch relay;
Reverse lamp / sec relay, with AT / 4 speed. |
| 14 | Rear window washer pump relay |
| 16 | A / C compressor clutch relay |
| 17 | Bulb failure warning module |
| 18 | Bulb failure warning module |
| 19 | |
| F1 | |
| F2 | (20A) Alarm system (taxi) |
| F3 | (10A) Taximeter |
| F4 | (5A) Two-way radio (taxi) |
| F5 | (20A) Alarm system (taxi) |
Type 3 (since 1998)
| 1 | Horn relay – double sound |
| 2 | Ignition auxiliary circuits relay |
| 3 | |
| 4 | Fuel pump relay, glow plug relay |
| 5 | Intermittent washer and windshield wipe relay |
| 6 | Intermittent washer and windshield wipe relay |
| 7 | Front Fog Lamp Relay (1998) |
| 8 | Taxi alarm system control module 1, daytime running lamp relay |
| 9 | Taxi alarm system control module 1, high beam relay |
| 10 | Alternator enable relay (AFB) -1998 |
| 11 | Side mirror control module, with folding mirrors |
| 12 | Side mirror control module, with folding mirrors |
| 13 | Starter brake switch relay;
Reverse lamp / sec relay, with AT / 4 speed. |
| 16 | Multifunction steering wheel control module |
| 17 | Bulb failure warning module |
| 18 | Bulb failure warning module |
| 19 | Taxi alarm system control module 2 |
| F1 | |
| F2 | (20A) Alarm system (taxi) |
| F3 | (10A) Taximeter |
| F4 | (5A) Two-way radio (taxi) |
| F5 | (20A) Alarm system (taxi) |
| F6 | |
| F7 | |
| F8 | (15A) Vacuum pump motor (AML / AMM / AMX / AVV) |
Relay box No.2 Audi A4.
Type 1
| 1 | Engine coolant blower timer |
| 2 | A / C condenser blower motor relay I |
| 3 | A / C condenser blower motor relay II |
| 4 | Window electric circuit relay |
| 5 | |
| 6 | |
| 7 | Telephone relay |
| 8 | |
| 9 | |
| 10 | Fog lamp relay |
| 11 | |
| 12 | |
| 13 | |
| F1 | |
| F2 | (30A) Seat adjustment |
| F3 | |
| F4 | (50A) ABS pump |
| F5 | (40A) A / C condenser blower motor I |
| F6 | (30A) Engine coolant blower motor fuse |
| F7 | (5A) A / C condenser blower motor II |
| F8 | (30A) Electric windows |
| F9 | (30A) Electric windows |
| F10 | (15A) Central locking |
Type 2
| 1 | Engine coolant blower motor run relay (if equipped) |
| 2 | Engine Coolant Blower Motor Relay – 2nd Speed (If Equipped) |
| 3 | Engine coolant blower motor relay – 1st speed |
| 4 | ABS relay (with ESP) |
| 5 | Door open warning lamp control module (1998 ^) |
| 6 | – |
| 7 | Audio unit / telephone loudspeaker switching relay (^ 1997) |
| 8 | – |
| F1 | – |
| F2 | (30A) Seat electric fuse, passenger side |
| F3 | (30A) Seat fuse, driver’s side |
| F4 | – |
| F5 | (10A) Auxiliary power socket |
| F6 | (30A) Windshield electric switch |
| F7 | (30A) Rear window electric switch |
| F8 | (5A) Coolant blower motor relay 1/2 |
| F9 | (40A) Engine coolant blower motor, 2 speed |
| F10 | (50A / 60A) Anti-lock brake system (ABS) |
| F11 | (30A) Engine coolant blower motor (one speed) |
