The Audi A3’s third generation, designated 8v, was presented in 2012 and produced from 2013 to 2020, undergoing a restyling. This article provides information on the locations of the fuse boxes for the Audi A3 8v, including diagrams and descriptions of their purpose. Please note that the cigarette lighter fuse will be highlighted.
Please note that the data presented in the following tables refers only to certain versions of the model and depends on its configuration. Check the assignment with yours on the back of the protective cover or other technical documentation.
Engine compartment fuse box
To access, click on the mount and check the current description with yours on the back of the lid.
Photo for example
Diagram
Description
| 1 | ESC control module |
| 2 | ESC control module |
| 3 | Engine control module (petrol / diesel) |
| 4 | Engine cooling, engine components, auxiliary heater coil relay (1 + 2), secondary air fuel pump relay |
| 5 | Engine components, reservoir system |
| 6 | Brake signal sensor |
| 7 | Engine components, water pumps |
| 8 | Oxygen sensor |
| 9 | Engine components, exhaust door, glow time control module, SULEV valve |
| 10 | Fuel injectors, fuel control module |
| 11 | Booster heater 2 heating element |
| 12 | Booster heater heating element 3 |
| 13 | Automatic transmission control module |
| 14 | – |
| 15 | Sound signal |
| 16 | Ignition coil / power electronics (plug-in hybrid drive *) |
| 17 | ESC control module, engine control module |
| 18 | Terminal 30 (reference voltage) |
| 19 | Wipers |
| 20 | Sound signal |
| 21 | – |
| 22 | Terminal Diagnostics 50 |
| 23 | Starter |
| 24 | Auxiliary heating element 1, brake booster (hybrid *) |
| 25 | – |
| 26 | – |
| 27 | – |
| 28 | – |
| 29 | – |
| 30 | – |
| 31 | Vacuum pump / water pump (plug-in hybrid drive *) |
| 32 | LED headlights |
| 33 | Brake booster memory (hybrid *) |
| 34 | Brake booster (hybrid *) |
| 35 | Relay (plug-in hybrid *) |
Passenger compartment fuse box
To access the box, open the glove compartment and you will see something like a pull rod.
Having removed the cover with the help of the rods, you will see something similar.
Fuse box diagram
Designation
| 1 | Engine components |
| 2 | Seat adjustment |
| 3 | Hydraulic pump cover (convertible) |
| 4 | MMI control panel, MMI components |
| 5 | Gateway |
| 6 | Selector (automatic transmission) |
| 7 | Climate / heating control, autonomous heating, rear window defogger relay |
| 8 | Diagnostics, electromechanical parking brake switch, light switch, rain and light sensor, communication unit with interior lighting (hybrid drive *) alarm |
| 9 | Steering column switch module |
| 10 | display |
| 11 | Driver’s side tensioning belts |
| 12 | MMI area |
| 13 | Shock adapter control module / service plug (plug-in hybrid drive *) |
| 14 | Air conditioner fan |
| 15 | Electronic steering column lock |
| 16 | MMI area |
| 17 | Instrument cluster |
| 18 | Rear View Camera |
| 19 | Convince Key System Control Module, Tank System |
| 20 | Additional system |
| 21 | – |
| 22 | – |
| 23 | Exterior lighting, heated washer fluid nozzles |
| 24 | Panorama sunroof / Upper powertrain control module, Upper powertrain latch (Convertible) |
| 25 | Doors / driver’s doors (e.g. power windows) |
| 26 | Seat heating |
| 27 | Amplifier sound |
| 28 | Electric drive control module, electronics (convertible) |
| 29 | Interior lighting |
| 30 | – |
| 31 | Outdoor Lighting |
| 32 | Driver assistance systems |
| 33 | Air bag |
| 34 | Button illumination, coils for upper cab heating relay (convertible) and socket relay, interior sound, reverse switch, temperature sensor |
| 35 | Functional lighting, diagnostics, high beam assistant, air quality sensor, auto-dimming rearview mirror |
| 36 | Right turn light / right LED light |
| 37 | Left cornering light / left high beam headlamp |
| 38 | High voltage battery (plug-in hybrid *) |
| 39 | Side doors / front passenger doors (e.g. power windows) |
| 40 | Sockets, Cigarette lighter |
| 41 | Front passenger seat belt tensioner |
| 42 | Central locking, windscreen washer |
| 43 | Lanterns, lighting |
| 44 | Four-wheel drive |
| 45 | – |
| 46 | – |
| 47 | Rear window wiper |
| 48 | External noise amplifier (Plug-in hybrid drive *) |
| 49 | Starter, clutch sensor, headlamp relay coil, high voltage battery (hybrid *) |
| 50 | – |
| 51 | – |
| 52 | – |
| 53 | Heated rear window |
Fuse number 40 is responsible for the operation of the cigarette lighter.
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Can any 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 Sound Signal (which I assume is the Horn). My Audi handbook only shows that as Fuse 15 but doesn’t list Fuse 20.