Vehicle wiring diagrams Audi 100 C4, petrol

What You Need to Know About Electrical Schematics
The electrical diagrams on the following pages show the individual electrical circuits of the system next to each other so that the functional interdependence...

Battery, starter, three-phase alternator...
Battery, starter, three-phase alternator, starter interlock relay and reversing lights (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Multipoint injection control unit, ignition system, injection nozzles...
Multipoint injection control unit, ignition system, injection nozzles, Hall sensor, thermal fuses (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Multipoint injection control unit, knock sensors, throttle potentiometer...
Multipoint injection control unit, knock sensors, throttle potentiometer, air flow meter, electronic transistor switch for ignition coils (Audi-100 2.8-liter...

Multipoint injection control unit, heated lambda probe
Multipoint injection control unit, heated lambda probe (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Multipoint injection control unit, ignition timing sensor, engine speed...
Multipoint injection control unit, ignition timing sensor, engine speed, coolant temperature and exhaust gas recirculation (Audi-100 2.8-liter 6-cylinder...

Multipoint injection control unit, central plug for connecting diagnostic stand...
Multipoint injection control unit, central plug for connecting the diagnostic stand, fuel pump relay, fuel level sensor, fuel pump (Audi-100 2.8-liter...

Car Engine Cooling (2.8L 6 Cylinder)
Engine cooling (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Self-checking system for monitoring coolant and oil pressure
Self-checking system for coolant and oil pressure monitoring (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Self-check system, brake shoe lining control
Self-test system, brake shoe lining monitoring (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Instrument cluster, fuel gauge, coolant temperature gauge...
Instrument cluster, fuel gauge, coolant temperature gauge, instrument cluster lighting with regulator, parking brake switches (Audi-100 2.8-liter 6-cylinder...

Self-checking system, additional instruments in the instrument panel, analog clock
Self-test system, additional instruments in the instrument panel, analogue clock (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Instrument cluster, alarms, speedometer with sensor
Instrument cluster, alarms, speedometer with sensor (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Reversing lights with switch
Reversing lights with switch (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Ignition and starter switch, light switch, unloader relay for X-contact
Ignition and starter switch, light switch, unloader relay for X-contact (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Safety switch, headlights, parking light, direction indicator lights...
Safety switch, headlights, parking light, direction indicator lights, lamp tester, rear left side lights (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Rear right side lights, fuse box, lamp indicator...
Rear right side lights, fuse box, lamp tester, number plate light, underhood light (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Fuse box brake light switch
Fuse box brake light switch (Audi 100 2.8 litre 6-cylinder engine (128 kW)).

Fuse compartment, horn
Fuse box, horn (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Hazard warning light switch, direction indicator switch...
Hazard warning light switch, direction indicator switch, hazard warning light relay (Audi-100 2.8L 6-cylinder engine (128 kW)).

Intermittent windscreen wiper switch, windscreen wiper and washer system...
Intermittent windscreen wiper switch, windscreen wiper and washer system, headlamp washer system (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Heated rear window
Heated rear window (Audi 100 2.8-liter 6-cylinder engine (128 kW)).

Door limit switch for lighting, footwell lighting, luggage compartment lighting...
Door light switch, footwell light, luggage compartment light, interior light, vanity mirror (Audi 100 2.8-litre 6-cylinder engine (128 kW)).

Cigarette lighter front and rear, parking light warning buzzer and radio
Cigarette lighter front and rear, parking light warning buzzer and radio (Audi-100 2.8-liter 6-cylinder engine (128 kW)).

Mono-Motronic injection system control unit, fuel pump relay, coolant temperature sensor...
Mono-Motronic injection system control unit, fuel pump relay, coolant temperature sensor, throttle potentiometer, lambda probe, injection nozzle, intake air...

Mono-Motronic injection system control unit, throttle position controller, Hall sensor...
Mono-Motronic injection system control unit, throttle position controller, Hall sensor, thermal fuses, intake air heater relay, activated carbon filter valve,...

Fuses, fuel pump, temperature control, fuel gauge sensor...
Fuses, fuel pump, temperature control, fuel gauge sensor, coolant level switch (2.0-litre 4-cylinder engine (74 kW) with Mono-Motronic injection system).

Engine cooling (2-liter 4-cylinder, Mono-Motronic)
Engine cooling (2-litre 4-cylinder engine (74 kW) with Mono-Motronic injection system).

KE-Motronic injection system control unit, fuel pump relay, fuel starting valve...
KE-Motronic injection system control unit, fuel pump relay, fuel starter valve, valve with activated carbon filter, thermal fuses, idle speed stabilization...

KE-Motronic injection system control unit, idle switch, full load switch...
KE-Motronic injection system control unit, idle switch, full load switch, air mass meter, Hall sensor, knock sensor, coolant temperature gauge (2.0-litre...

Fuses, ignition coil with electronic transistor switch, fuel pump...
Fuses, ignition coil with electronic transistor switch, fuel pump, temperature control (2-liter 4-cylinder engine (85 kW) with KE-Motronic injection system).

Engine cooling (2-liter 4-cylinder, KE-Motronic)
Engine cooling (2-litre 4-cylinder engine (85 kW) with KE-Motronic injection system).

KE-Jetronic injection system control unit, heated lambda probe, coding plug, fuel starter valve.
KE-Jetronic injection system control unit, heated lambda probe, coding plug, fuel starter valve, idle speed stabilisation valve, valve with activated carbon...

KE-Jetronic injection system control unit, electronic ignition system control unit...
KE-Jetronic injection system control unit, electronic ignition system control unit with knock control, throttle switch, altitude sensor, air flow meter (2.3...

Electronic ignition system control unit with knock control, fuel pump relay...
Electronic ignition control unit with knock control, fuel pump relay, knock sensor (2.3 liter 4-cylinder (98 kW)).

Electronic ignition system control unit with knock control, ignition system...
Electronic ignition control unit with knock control, ignition system, coolant fan

Central locking system with delayed switching off of interior lighting
Centrally controlled locking system with delayed switching off of interior lighting.

Electrically adjustable and heated exterior mirrors
Electrically adjustable and heated exterior mirrors.

Electric windows (4-door car)
Electric windows (4 door car).

Additional car devices
Additional car devices.

This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

Share information:

100(C4, 1990-1994)

100(C4, 1990-1994, petrol)

100(C3, 1982-1990)

100(C3, 1982-1990, petrol)

100(C3, 1982-1990, diesel)