Audi Q3 2nd generation was produced in 2019, 2020, 2021, 2022, 2023, 2024, 2025 with the designation F3. In this article you can find a description of fuses and relays Audi Q3 2 generation with fuse box diagrams, their locations and photo examples of performance. Let’s highlight the fuse responsible for the cigarette lighter.
The assignment of fuses and relays may differ from the one shown and depends on the year of manufacture and the level of electrical equipment of your vehicle.
Passenger compartment
It is located under the dashboard, on the driver’s side, behind the glove compartment.
Photo for example
Diagram
Assignment
| F1 | Exhaust treatment |
| F2 | Seat electronics, front seats |
| F4 | Infotainment system, volume control |
| F5 | Diagnostic interface |
| F6 | Ignition key safety interlock, selector lever (automatic transmission) |
| F7 | Auxiliary heating, climate control system control panel, tire pressure monitoring system |
| F8 | Headlight range control, interior monitoring, ambient lighting, light switch, roof electronics control module, emergency call module, parking brake, diagnostic connector, light/rain sensor, particulate matter sensor |
| F9 | Steering column electronics |
| F10 | Infotainment system, volume control |
| F11 | Vehicle electrical system control module |
| F12 | Infotainment system |
| F13 | Driver’s side safety belt tensioner, airbag control module |
| F14 | Climate control system blower |
| F15 | Electronic steering column lock |
| F16 | Audi phone box |
| F17 | Instrument cluster, emergency call and communication control module |
| F18 | Rearview camera, peripheral cameras |
| F19 | Convenience access and start authorization control module |
| F20 | Exhaust treatment, fuel leak diagnosis |
| F21 | Steering column electronics |
| F24 | Vehicle electrical system control module |
| F25 | Driver side door control module, left rear window regulator motor, left rear door control module |
| F26 | Vehicle electrical system control module |
| F27 | Vehicle electrical system control module |
| F29 | Roof electronics control module, vehicle electrical system control module |
| F30 | 48 volt battery, electric drive system |
| F32 | Driver assistance systems, camera systems |
| F33 | Front passenger’s seat electronics, roof electronics control module |
| F34 | A/C system components, parking brake, reverse lights, interior sound generator |
| F35 | Air quality sensor, diagnostic connector, center console switch module, rearview mirror, headlight range control, instrument illumination |
| F39 | Passenger side door control module, right rear window regulator motor, right rear door control module |
| F40 | 12 volt socket |
| F41 | Passenger’s side safety belt tensioner |
| F42 | Vehicle electrical system control module |
| F44 | All wheel drive control module |
| F45 | Driver’s seat electronics |
| F47 | Rear window wiper |
| F48 | Exterior sound generator |
| F49 | Engine start, clutch position sensor, electric drive system |
| F52 | Suspensión control |
| F53 | Rear window defogger |
The fuse number 40, 20A, is responsible for the cigarette lighter.
The following fuses are also located inside the fuse box mount:
| A | 15A | Operating unit for front right seat adjustment -EX34- Front right seat cushion fan 1 -V518- Front right seat backrest fan 1 -V516- |
| B | 5A | Remote starting system relay -J471- |
| C | 7.5A | USB charging socket 1 -U37- |
| R1 | Remote starting system relay -J471- |
Relay
- R1 Relay for reducing agent metering system -J963-
- R2 Air conditioner magnetic clutch relay
- R3 –
- R4 Terminal 15 voltage supply relay -J329-
- R5 Heated rear window relay -J9-
- R6 Relay for power sockets -J807-
Engine compartment
It is located on the left side next to the battery and is covered by a protective cover. Consists of 2 sections: a communication section with fuses and relays, and a section for high power fuses.
photo for example
Diagram
Designation
| 1 | 25A | ESC, ABS control unit -J104- |
| 2 | 40A / 60A | ESC, ABS control unit -J104- ABS hydraulic pump -V64- |
| 3 | 15A / 30A | Engine/motor control unit -J623- |
| 4 | 5A / 7.5A / 10A | Radiator fan -VX57- High heat output relay -J360- Low heat output relay -J359- Valve for oil pressure control -N428- Turbocharger air recirculation valve -N249- Intake manifold flap valve -N316- Piston cooling jet control valve -N522- Oil level and oil temperature sender -G266- Turbine changeover valve -N529- Engine component current supply relay -J757- |
| 5 | 10A | Fuel pressure regulating valve -N276- Fuel metering valve -N290- Engine component current supply relay -J757- Turbine changeover valve -N529- |
| 6 | 5A / 7.5A | Brake light switch -F- |
| 7 | 7.5A / 10A / 15A | Charge air cooling pump -V188- Coolant valve for gearbox -N488- Coolant shut-off valve -N82- Auxiliary pump for heating -V488- Coolant valve for cylinder head -N489- Valve for oil pressure control -N428- Control unit for fuel tank leak detection -J909- |
| 8 | 15A | Lambda probe 1 before catalytic converter -GX10- Lambda probe 1 after catalytic converter -GX7- Control unit for NOx sender -GX30- Control unit for NOx sender 2 -J881- |
| 9 | 5A / 10A | Exhaust flap control unit -J883- Exhaust flap control unit 2 -J945- Automatic glow period control unit -J179- Heater element for crankcase breather -N79- Air mass meter -G70- Auxiliary pump for heating -V488- Activated charcoal filter solenoid valve 1 -N80- Exhaust camshaft control valve 1 -N318- Camshaft control valve 1 -N205- |
| 10 | 15A / 20A | Fuel pump control unit -J538- |
| 11 | 40A / 50A | Auxiliary air heater element -Z35- |
| 12 | 40A | Auxiliary air heater element -Z35- |
| 13 | 30A | Auxiliary hydraulic pump 1 for gearbox oil -V475- |
| 14 | 40A | Heated windscreen relay -J47- |
| 15 | 15A | Horn relay -J413- |
| 16 | 20A | Engine component current supply relay -J757- |
| 17 | 7.5A | Engine/motor control unit -J623- ESC, ABS control unit -J104- Heated windscreen relay -J47- |
| 18 | 5A / 7.5A | Battery monitor control unit -J367- Data bus diagnostic interface -J533- |
| 19 | 30A | Wiper motor control unit -J400- |
| 20 | 10A | Alarm horn -H12- |
| 21 | 30A | Heated windscreen relay 2 -J611- |
| 22 | 5A / 7.5A | Engine/motor control unit -J623- |
| 23 | 30A | Starter -B- |
| 24 | 40A | Auxiliary air heater element -Z35- |
| 31 | – | Engine components |
| 32 | – | – |
| 33 | 30A | Transmission fluid pump / 2022: Brake booster |
| 34 | 30A | Heated windscreen relay 2 -J611- |
| 35 | 30A | Wiper motor control unit -J400- Climate control system |
| 36 | – | Left headlight |
| 37 | 30A | Auxiliary heater control unit -J364- Parking heater |
| 38 | – | Right headlight |
Relay
- R1 Starter relay 1 -J906-
- R2 Starter relay 2 -J907-
- R3 Horn relay -J413-
- R4 High heat output relay -J360-
- R5 Main relay -J271- (petrol) / Terminal 30 voltage supply relay -J317- (diesel)
- R6 Automatic glow period control unit -J179- (petrol)
- R7 Low heat output relay -J359- (diesel)
- R8 Engine component current supply relay -J757- (2.0l petrol engine)
- R9 Heated windscreen relay -J47-
- R10 Heated windscreen relay 2 -J611-
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