Table of Contents
The Audi Q3 is a compact premium crossover SUV that has been manufactured by the Volkswagen Group since 2011. The third generation of the crossover was introduced in June 2025. In this article, we will provide a detailed breakdown of the fuse diagrams for the Audi Q3 (third generation; body code FJ; MQB Evo platform) for the 2026, 2027, 2028, 2029, 2030, and 2031 model years.
Here you will find the locations and photos of the fuse boxes. We have specifically highlighted the fuses responsible for the cigarette lighter and fuel pump in bold.
Passenger Compartment
In left-hand drive vehicles, the fuse box is located behind the glove box on the driver's side.
In right-hand drive models, the fuse box is installed behind the glove box on the passenger side.
| Diagram | ||
|---|---|---|
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| No. | Description | Rating (A) |
| SC1 | Spare | — |
| SC2 | Spare | — |
| SC3 | Trailer recognition control module | 25 A |
| SC4 | AdBlue reductant heater control module (diesel) | 20 A |
| SC5 | Transmission park lock actuator | 25 A |
| SC6 | Body Control Module (BCM), interior lighting | 30 A |
| SC7 | Climate control module, front seat heating | 30 A |
| SC8 | Sunroof control module | 20 A |
| SC9 | Front door control modules, rear power windows | 30 A |
| SC10 | Spare | — |
| SC11 | Trailer recognition control module | 15 A |
| SC12 | Body Control Module (BCM), exterior lighting (left side) | 40 A |
| SC13 | Body Control Module (BCM), central locking | 40 A |
| SC14 | Audio system control module (DSP) | 30 A |
| SC15 | Spare | — |
| SC16 | Airbag control module (SRS) | 7.5 A |
| SC17 | AdBlue dosing system relay (diesel) | 10 A |
| SC18 | Keyless entry control module, door handles, factory alarm system modules, electronic steering column lock (ELV) | 7.5 A |
| SC19 | Instrument cluster, emergency call system module (eCall) | 7.5 A |
| SC20 | Internet access module, USB port, phone holder, TV tuner (Japan) | 7.5 A |
| SC21 | Blind spot monitoring radars, exterior mirrors, tailgate handle | 7.5 A |
| SC22 | Spare | — |
| SC23 | Spare | — |
| SC24 | All-wheel drive (AWD) control module | 15 A |
| SC25 | Front seat belt pre-tensioner | 25 A |
| SC26 | Door and power window control modules | 30 A |
| SC27 | Front seat belt pre-tensioner | 25 A |
| SC28 | Spare | — |
| SC29 | Trailer recognition control module | 15 A |
| SC30 | Infotainment system module (MIB) | 30 A |
| SC31 | Trailer recognition control module | 25 A |
| SC32 | Rear climate control module, rear seat heating | 25 A |
| SC33 | Spare | — |
| SC34 | Spare | — |
| SC35 | Body Control Module (BCM), exterior lighting (right side) | 40 A |
| SC36 | Heater blower motor control module | 40 A |
| SC37 | Spare | — |
| SC38 | Spare | — |
| SC39 | Steering column electronics module (SZL) | 10 A |
| SC40 | Factory alarm backup horn | 7.5 A |
| SC41 | Data bus diagnostic interface (Gateway) | 7.5 A |
| SC42 | Automatic transmission selector, gear selector indicator | 7.5 A |
| SC43 | Interior temperature sensor, climate control module, rear window defogger relay | 10 A |
| SC44 | Electromechanical parking brake (EPB) button, OBD diagnostic connector, overhead module, interior motion sensor, rain and light sensor | 7.5 A |
| SC45 | Steering column electronics module (SZL) | 7.5 A |
| SC46 | Head-up display (HUD) control module | 7.5 A |
| SC47 | Adaptive chassis control (DCC) module | 10 A |
| SC48 | USB charging port | 7.5 A |
| SC49 | Spare | — |
| SC50 | Spare | — |
| SC51 | Spare | — |
| SC52 | 12V power outlet, cigarette lighter fuse | 20 A |
| SC53 | Spare | — |
| SC54 | Spare | — |
| SC55 | Spare | — |
| SC56 | Spare | — |
| SC57 | Spare | — |
| SC58 | Front driver assistance camera, park assist control module, adaptive cruise control radar | 7.5 A |
| SC59 | Electromechanical parking brake (EPB) button, auto-dimming interior rearview mirror, air quality sensor | 7.5 A |
| SC60 | OBD diagnostic connector | 7.5 A |
| SC61 | Starter relays 1 and 2 | 7.5 A |
| SC62 | Spare | — |
| SC63 | Spare | — |
| SC64 | Spare | — |
| SC65 | Engine sound generator control module | 10 A |
| SC66 | Rear wiper motor | 15 A |
| SC67 | Rear window defogger relay | 30 A |
| R1 | 12V power outlet relay | — |
| R2 | Terminal 15 power supply relay | — |
| R3 | Rear window defogger relay | — |
| R4 | AdBlue dosing system relay (diesel) | — |
| R5 | Spare | — |
| R6 | Spare | — |
Some additional fuses are located near the main fuse box.
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| No. | Protected circuit | Rating (A) |
| A | Driver's power seat control module | 15 A |
| B | Spare | — |
| C | Spare | — |
| D | Driver's seat cushion and backrest ventilation fans, front left seat adjustment control module | 15 A |
| E | Front passenger's seat cushion and backrest ventilation fans, front right seat adjustment control module | 15 A |
| F | Spare | — |
| G | Special equipment control module, diagnostic connector 2, connection points for wheelchair lift, two-way radio, special signals, event data recorder | 10 A |
| H | Spare | — |
| I | Spare | — |
| J | Spare | — |
| K | Wheelchair lift connection point, special equipment control module | 40 A |
| L | Special equipment control module, fuse 16 on SRSH relay and fuse holder | 40 A |
| M | Spare | — |
| N | Spare | — |
| O | Spare | — |
| P | Spare | — |
Engine Compartment
The fuse box is located next to the battery.
| Diagram | ||
|---|---|---|
|
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| No. | Description | Rating (A) |
| SB1 | Electromechanical power steering control module | 400 A |
| SB2 | Main relay (gasoline), terminal 30 power supply relay (diesel), engine control module (ECM), ABS control module | 7.5 A |
| SB3 | Engine components power supply relay (2.0L gasoline) | 20 A |
| SB3 | Gas shut-off valve relay (CNG engine) | 7.5 A |
| SB4 | Front left headlight | 15 A |
| SB5 | Front right headlight | 15 A |
| SB6 | Spare | — |
| SB7 | Auxiliary transmission fluid hydraulic pump 1 | 30 A |
| SB8 | Electromechanical brake booster | 40 A |
| SB9 | Horn relay | 15 A |
| SB10 | Wiper motor control module | 30 A |
| SB11 | Spare | — |
| SB12 | Mechatronic unit for dual-clutch transmission, automatic transmission control module (TCM) | 15 / 30 A |
| SB13 | ABS control module | 25 A |
| SB14 | Auxiliary parking heater control module | 20 A |
| SB15 | ABS control module | 40 A |
| SB16 | Spare | — |
| SB17 | Auxiliary air heater element (PTC - diesel) | 40 A |
| SB18 | Auxiliary air heater element (PTC - diesel) | 40 A |
| SB19 | Spare | — |
| SB20 | Differential lock control module | 15 A |
| SB21 | Engine control module (ECM) | 7.5 A |
| SB22 | Starter solenoid relay | 30 A |
| SB23 | Engine control module (ECM) | 15 A |
| SB24 | Radiator fan control module, oil level and temperature sensor, EVAP purge valve, camshaft adjusters, oil pressure valve, starter-generator (48V MHEV), reagent dosing relay (diesel), glow plug control module (diesel) | 7.5 / 10 A |
| SB25 | Gas injectors 1–4 (CNG engine) | 10 A |
| SB26 | Crankcase ventilation heater, oil pressure valve, electronically controlled thermostat, coolant circulation pump, charge air cooling pump, auxiliary heater pump | 10 A |
| SB27 | DPF sensor, oxygen sensors (lambda probes) upstream and downstream of catalytic converter, NOx sensor control module | 10 / 15 A |
| SB28 | Ignition coils 1–4, EVAP purge valve, camshaft adjustment solenoid valves, oil pressure valve | 20 A |
| SB29 | Fuel pump control module | 15 / 20 A |
| SB30 | Spare | — |
| SB31 | Spare | — |
| SB32 | Spare | — |
| R1 | Main relay (ECM power supply) | — |
| R2 | High heat output relay for PTC auxiliary heater (diesel) | — |
| R3 | Horn relay | — |
| R4 | Starter relay 1 | — |
| R5 | Starter relay 2 | — |
| R6 | Gas shut-off valve relay (CNG) / Engine components power supply relay | — |
| R7 | Glow plug control module (diesel) | — |
| R8 | Low heat output relay for PTC auxiliary heater | — |
A main fuse panel consisting of high-current SA fusible links is located near the main fuse box.
| Diagram | ||
|---|---|---|
|
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| No. | Description | Rating (A) |
| SA1 | Fuse box (engine compartment) | 150 A |
| SA2 | Engine cooling radiator fan | 50 A |
| SA3 / 508 | Battery positive terminal | — |
| SA4 | Fuse box (passenger compartment) | 125 A |
| SA5 | Fuse box (passenger compartment) | 125 A |
