Audi A3 and S3 8Y (2020-2021…) – fuse box
Audi A3 and S3 8Y – fuse box diagram
Year of production: 2020, 2021.
The fuse for the cigarette lighter / power socket on the Audi A3 and S3 8Y is fuse No. F40 in the fuse box in the passenger compartment.
Color [Amperes]
- Black [1]
- Violet [3]
- Light brown [5]
- B wholemeal [15]
- Red [10]
- Blue [15]
- Yellow [20]
- White or transparent [25]
- Green [30]
- Orange [40]
Fuse box in the passenger compartment
| Number | Description |
|---|---|
| F1 | Engine components, AdBlue |
| F2 | Seat adjustment |
| F3 | – |
| F4 | Infotainmentl control panel;
Infotainment ingredients. |
| F5 | CAN module |
| F6 | Gear lever (automatic gearbox);
Steering wheel lock. |
| F7 | Air conditioning and heating control;
Parking heating; Rear window defogger; Tire pressure monitor. |
| F8 | Electromechanical parking brake switch;
Light switch; Rain and light sensor; Anti-theft alarm system; Diagnostic connector; Roof module; Emergency call system; Headlamp range control. |
| F9 | Steering column electronics |
| F10 | Infotainment system display |
| F11 | Left vehicle electrical control module |
| F12 | Elements of the infotainment system |
| F13 | Driver’s seat belt pretensioner;
Airbags. |
| F14 | Heating and air conditioning blower control |
| F15 | Electronic steering column lock;
Convenience access control module. |
| F16 | Television tuner;
Telephone antenna. |
| F17 | Instrument cluster (controls) |
| F18 | Rear camera |
| F19 | Vehicle positioning |
| F20 | Engine components;
AdBlue; Charging system. |
| F21 | Steering column;
Steering wheel heating switch module. |
| F22 | – |
| F23 | – |
| F24 | Right vehicle electrical control module |
| F25 | Electric front and rear windows on the driver’s side |
| F26 | Seat heating |
| F27 | Vehicle electrical system control module |
| F28 | Top power control module |
| F29 | Vehicle electrical system control module;
Indoor lighting. |
| F30 | Diagnostic connector |
| F31 | – |
| F32 | Front camera;
Parking system; ACC sensor; Lane change assistant. |
| F33 | Airbag |
| F34 | Auto Hold buttons (hill brake);
Internal sound; Reverse light switch; Temperature sensor; Heating neck and power sockets; Top power button. |
| F35 | Air quality sensor;
Automatic dimming rear view mirror; Diagnostic connector; Center console power supply . |
| F36 | Right headlight (LED, Matrix LED) |
| F37 | Left headlight (LED, Matrix LED) |
| F38 | High voltage battery |
| F39 | Electric side windows front and rear on the passenger side |
| F40 | Lighter;
Power socket. |
| F41 | Seat belt pretensioner on the passenger side |
| F42 | Central lock |
| F43 | – |
| F44 | All-wheel drive |
| F45 | Lateral adjustment of the driver’s seat |
| F46 | – |
| F47 | Rear window wiper |
| F48 | External engine sound |
| F49 | Clutch sensor;
Starting the engine; High voltage battery; Power electronics. |
| F50 | – |
| F51 | – |
| F52 | Level control system control module |
| F53 | Rear window defogger |
Fuse box in the engine compartment
| Number | Description |
|---|---|
| F1 | – |
| F2 | – |
| F3 | Engine control module |
| F4 | Engine components;
Engine cooling; Auxiliary heater; Exhaust gas treatment. |
| F5 | Engine components;
Fuel tank system (diesel); CNG shut-off valve. |
| F6 | Brake light switch |
| F7 | Engine components;
Water pump; Tank system (gasoline engine); Electrification. |
| F8 | Oxygen heating sensor |
| F9 | Engine components;
Exhaust doors; Glow time control module. |
| F10 | Fuel control module;
Fuel pump. |
| F11 | – |
| F12 | – |
| F13 | Transmission fluid pump |
| F14 | – |
| F15 | Horn |
| F16 | Power and control electronics;
Engine components; The ignition coil; Option module. |
| F17 | Electronic Stability Control (ESC);
Engine control module. |
| F18 | Terminal 30 (reference voltage);
Battery monitoring. |
| F19 | Wipers |
| F20 | Anti-theft alarm system |
| F21 | Automatic Transmission |
| F22 | Terminal 50 diagnosis;
Engine control module. |
| F23 | Starting the engine |
| F24 | – |
| F25 | – |
| F26 | – |
| F27 | – |
| F28 | – |
| F29 | – |
| F30 | – |
| F31 | Vacuum pump;
The water pump; High pressure pump; Fuel injectors. |
| F32 | – |
| F33 | Brake pressure reservoir;
Recuperation. |
| F34 | Brake servo |
| F35 | Air conditioning system |
| F36 | Left front headlight |
| F37 | Auxiliary heating |
| F38 | Left front headlight |