Audi A3 and S3 8Y – fuse box diagram
Year of production: 2020, 2021.
Cigarette lighter/power socket fuse in Audi A3 and S3 8Y is fuse No. F40 in the fuse box in the passenger compartment.
Color [Ampery]
- Black [1]
- Purple [3]
- Light brown [5]
- BRED [15]
- Red [10]
- Blue [15]
- Yellow [20]
- White or transparent [25]
- Green [30]
- Orange [40]
Fuse box in the passenger compartment
| No. | Description |
|---|---|
| F1 | Engine components, AdBlue |
| F2 | Seat adjustment |
| F3 | – |
| F4 | Infotainmentl control panel
Infotainment components. |
| F5 | CAN module |
| F6 | Gear shift lever (automatic transmission);
Steering wheel lock. |
| F7 | Control of air conditioning and heating;
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; Alarm connection system; Headlight range control. |
| F9 | Steering column electronics |
| F10 | Display of the audio-navigation system |
| F11 | Left vehicle electrical control module |
| F12 | Infotainment system components |
| F13 | Driver side seat belt pretensioner;
Airbags. |
| F14 | Heating and air conditioning system blower control |
| F15 | Electronic steering column lock;
Convenience control module. |
| F16 | TV 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 | Upper power control module |
| F29 | Vehicle electrical system control module;
Interior lighting. |
| F30 | Diagnostic connector |
| F31 | – |
| F32 | Front camera;
Parking system; ACC sensor; Lane Change Assist. |
| F33 | Airbag |
| F34 | Auto Hold (hill brake) buttons;
Internal sound; Reversing light switch; Temperature sensor; Neck Heating and power outlets; Power button from the top. |
| F35 | Air quality sensor;
Automatic dimming rearview mirror; Diagnostic connector; Power supply center console. |
| F36 | Right headlight (LED, Matrix LED) |
| F37 | Left headlight (LED, Matrix LED) |
| F38 | High voltage battery |
| F39 | Electric front and rear passenger side side windows |
| F40 | Lighter;
Power socket. |
| F41 | Passenger side seat belt pretensioner |
| F42 | Central locking system |
| F43 | – |
| F44 | All-wheel drive |
| F45 | Driver’s seat side adjustment |
| F46 | – |
| F47 | Rear window wiper |
| F48 | External engine sound |
| F49 | Clutch sensor;
Engine start; High-voltage battery; Power electronics. |
| F50 | – |
| F51 | – |
| F52 | Level control system control module |
| F53 | Rear window defogger |
Fuse box in the engine compartment
| No. | Description |
|---|---|
| F1 | – |
| F2 | – |
| F3 | Engine control module |
| F4 | Engine components;
Engine cooling; Auxiliary heater; Flue 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 timing control module. |
| F10 | Fuel control module;
Fuel pump. |
| F11 | – |
| F12 | – |
| F13 | Transmission fluid pump |
| F14 | – |
| F15 | Horn |
| F16 | Power and control electronics;
Engine components; 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 | Caliper diagnostics 50;
Engine control module. |
| F23 | Starting the engine |
| F24 | – |
| F25 | – |
| F26 | – |
| F27 | – |
| F28 | – |
| F29 | – |
| F30 | – |
| F31 | Vacuum pump;
Water pump; High pressure pump; Fuel injectors. |
| F32 | – |
| F33 | Brake pressure reservoir;
Recuperation. |
| F34 | Brake booster |
| F35 | Air conditioning system |
| F36 | Left front headlight |
| F37 | Parking heater |
| F38 | Left front headlight |
The article Audi A3 and S3 8Y (2020-2021…) – fuse box comes from the site Fuseów schematics.