Audi A3  Self-help  Fuses and bulbs  Fuses
No.
Electrical equipment
F1
ESC control unit
F2
ESC control unit
F3
Engine control unit (petrol/diesel)
F4
Engine cooling, engine components, supplementary heater relay coils (1+2), secondary air pump relay
F5
Engine components, tank system
F6
Brake light sensor
F7
Engine components, coolant pumps
F8
Lambda probe
F9
Engine components, exhaust flap, control unit for automatic glow period
F10
Fuel injectors, fuel control unit
F11
Supplementary heater, heating rod 2
F12
Supplementary heater, heating rod 3
F13
Automatic gearbox control unit
F15
Horn
F16
CNG shut-off valve (natural gas engine) / power electronics (plug-in hybrid drive*) / ignition coil
F17
ESC control unit, engine control unit
F18
Terminal 30 (reference voltage)
F19
Windscreen wipers
F20
Horn
F22
Terminal 50, diagnostics
F23
Starter
F24
Supplementary heater, heating rod 1, brake servo (plug-in hybrid drive*)
F31
Vacuum pump/coolant pump (plug-in hybrid drive*)
F32
LED headlights
F33
Brake servo accumulator (plug-in hybrid drive*)
F34
Brake servo control (plug-in hybrid drive*)
F35
Relay (plug-in hybrid drive*)
F37
Auxiliary heating
Note
Please note that the above list, while correct at the time of printing, is subject to alterations.

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