Table of Contents
The Audi A3 is a compact family car produced by the German automaker since 1996. The third generation was manufactured from 2012 to 2020, receiving a mid-cycle facelift in 2016. In this article, we take a detailed look at the fuse box diagrams for the third-generation Audi A3 / S3 (8V: 8V1 / 8VS / 8VA / 8V7) model years 2012 through 2020.
Below you will find the fuse panel locations, diagrams, and photos. The fuses responsible for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold.
In the Passenger Compartment
On left-hand drive (LHD) models, the fuse box is located on the driver’s side behind the lower dashboard cover. On right-hand drive (RHD) models, it is located behind the glove box.
Fuse box access example.
| Passenger Compartment Fuse Box Diagram | ||
|---|---|---|
|
||
| No. | A | Description |
| F1 | 30 | Engine management components |
| F2 | 10 | Power seat adjustment |
| F3 | 40 | Convertible soft top hydraulic pump (Cabriolet) |
| F4 | 7.5 | MMI control module |
| F5 | 5 | Data bus gateway control module |
| F6 | 5 | Anti-theft alarm system |
| F7 | 10 | Climatronic control unit, automatic transmission selector lever, auxiliary heater, heated rear window relay coil |
| F8 | 10 | Diagnostic connector, electronic parking brake switch, light switch, rain and light sensor, interior lighting module, alarm system |
| F9 | 10 | Steering column switch module |
| F10 | 5 | Instrument cluster display / MMI display |
| F11 | 25 | Driver’s seat belt tensioner |
| F12 | 15/20 | MMI / Infotainment system |
| F13 | 20 | Adaptive suspension control module / Diagnostic port |
| F14 | 30 | Blower motor / Climate control fan |
| F15 | 10 | Electronic steering column lock |
| F16 | 7.5 | MMI / Infotainment system |
| F17 | 5 | Instrument cluster |
| F18 | 7.5 | Rearview camera |
| F19 | 7.5 | Convenience key / Keyless access control module |
| F20 | — | Unassigned |
| F21 | — | Unassigned |
| F22 | — | Unassigned |
| F23 | 40 | Exterior lighting (right side) |
| F24 | 20/30 | Panoramic sunroof / Convertible soft top control module, soft top lock (Cabriolet) |
| F25 | 30 | Driver’s door control module (power windows, central locking) |
| F26 | 30 | Heated seats |
| F27 | 30 | Audio amplifier |
| F28 | 5 | Convertible top electronics control module (Cabriolet) |
| F29 | 7.5 | Interior lighting |
| F30 | — | Unassigned |
| F31 | 40 | Exterior lighting (left side) |
| F32 | 7.5 | Driver assistance systems |
| F33 | 5 | Airbag control module |
| F34 | 7.5 | Switch illumination backlighting, neck heating relay coil (Cabriolet), 12V socket relay, engine sound generator, reverse light switch, oil temperature and level sensor |
| F35 | 10 | Diagnostic connector, headlight range adjustment, air quality sensor, auto-dimming rearview mirror |
| F36 | 15 | Right cornering light / Right LED headlight module |
| F37 | 15 | Left cornering light / Left LED headlight module |
| F38 | — | |
| F39 | 30 | Front passenger door control module (power windows, central locking) |
| F40 | 20 | Cigarette lighter, 12V power sockets (Audi A3 8V) |
| F41 | 25 | Front passenger seat belt tensioner |
| F42 | 40 | Central locking system control module |
| F43 | 30 | Windshield washer pump |
| F44 | 15 | All-wheel drive (quattro) control module |
| F45 | 15 | Driver’s power seat |
| F46 | — | Unassigned |
| F47 | 15 | Rear window wiper motor |
| F48 | — | Unassigned |
| F49 | 5 | Starter switch, clutch position sensor |
| F50 | — | Unassigned |
| F51 | — | Unassigned |
| F52 | — | Unassigned |
| F53 | 30 | Heated rear window |
| R1 | SCR system relay / Convertible neck heating relay | |
| R2 | Seat belt warning system relay | |
| R3 | Unassigned | |
| R4 | Multifunction relay | |
| R5 | Heated rear window relay | |
| R6 | Multifunction relay | |
In the Engine Compartment
Located on the left side of the engine compartment behind a protective cover.
General view.
| Engine Compartment Fuse Box Diagram | ||
|---|---|---|
|
||
| No. | A | Description |
| F1 | 40 | Electronic Stability Control (ESC) module |
| F2 | 40 | |
| F3 | 15/30 | Engine Control Module (ECM - Gasoline / Diesel) |
| F4 | 5/10 | Engine cooling fan, engine components, auxiliary heater relay coils (1 & 2), secondary air injection pump relay |
| F5 | 7.5/10 | Engine components, fuel tank system |
| F6 | 5 | Brake light switch |
| F7 | 7.5/10/15 | Engine components, auxiliary coolant pumps |
| F8 | 10/15 | Oxygen sensor (Lambda probe) |
| F9 | Engine components, exhaust flap control valve, glow plug control module | |
| F10 | 15/20 | Fuel injectors, fuel pump control module |
| F11 | 40 | Auxiliary air heater element 2 |
| F12 | 40 | Auxiliary air heater element 3 |
| F13 | 15/30 | Transmission Control Module (TCM) |
| F14 | — | Unassigned |
| F15 | 15 | Trailer towing module / socket |
| F16 | 20/7.5 | Ignition coils / CNG shut-off valve (Natural Gas engine) |
| F17 | 7.5 | ESC control module, Engine Control Module (ECM) |
| F18 | 5 | Terminal 30 (constant power supply) |
| F19 | 30 | Windshield wiper motor |
| F20 | 10 | Trailer towing module / socket |
| F21 | Unassigned | |
| F22 | 5 | Terminal 50 (starter signal), diagnostic connector |
| F23 | 30 | Starter motor |
| F24 | 40 | Auxiliary air heater element 1 |
| F25 | — | Unassigned |
| F26 | — | Unassigned |
| F27 | — | Unassigned |
| F28 | — | Unassigned |
| F29 | — | Unassigned |
| F30 | — | Unassigned |
| F31 | 15 | Brake vacuum pump |
| F32 | 5 | LED headlight control module |
| F33 | — | Unassigned |
| F34 | — | Unassigned |
| F35 | — | Unassigned |
| F36 | — | Unassigned |
| F37 | 20 | Auxiliary heater |
| R1 | Starter relays 1 & 2 | |
| R2 | ||
| R3 | Horn relay | |
| R4 |
|
|
| R5 | Engine Control Module (ECM) main relay | |
| R6 |
|
|
| R7 | Auxiliary air heater relay | |
| R8 |
|
|
| R9 | LED headlight relay | |
| R10 | Unassigned | |
Can you please tell me which fuse controls the Windscreen Washer Pump on an Audi 8V 2018 model? I can’t see it listed here nor in my car owner’s handbook.
I also note that you have both Fuse 15 and Fuse 20 in the engine bay marked as Farkop (which I assume is the Horn). My Audi handbook only shows that as Fuse 15 but doesn’t list Fuse 20.
I'm having issues finding my ignition wire, my car looking different then the diaphragm