Audi A3 / S3 (8V; 2012 - 2020) fuses and relays

The Audi A3 is a small family class hatchback produced by the German concern since 1996. The third generation was produced from 2012 to 2020. In 2016, a restyling was carried out. In this material, we will analyze in detail the fuse diagrams of the Audi A3 / S3 (8V: 8V1 / 8VS / 8VA / 8V7) 3rd generation 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 release.

general view of the car
Here you will find the locations and photos of the mounting blocks. Separately, we note the fuses responsible for the cigarette lighter and fuel pump.

In the passenger compartment

Location of the fuse box in the passenger compartment of a left-hand drive vehicle.
For left-hand drive models, the block is located on the driver's side behind the dashboard lining. For right-hand drive models, the block is located behind the glove box.

Access example.

Cabin Fuse Block Diagram
No. A Description
F1 30 Engine components
F2 10 Seat adjustment
F3 40 Convertible Top Hydraulic Pump (Cabriolet)
F4 7.5 MMI control
F5 5 Block Gateway
F6 5 Anti-theft alarm
F7 10 A/C/Heater Console, Selector Lever (Automatic Transmission), Auxiliary Heater, Heated Rear Window Relay Coil
F8 10 Diagnostics, parking brake switch, light switch, rain and light sensor, communication unit with interior lighting, alarm
F9 10 Steering column switch module
F10 5 Display
F11 25 Tensioner seat belts on the driver's side
F12 15/20 MMI area
F13 20 Shock adapter control module/service connector
F14 30 Climate control fan
F15 10 Electronic steering wheel lock
F16 7.5 MMI area
F17 5 instrument panel
F18 7.5 Rear View Camera
F19 7.5 Convenient Key System Control Unit
F20 Reserve
F21 Reserve
F22 Reserve
F23 40 Outdoor lighting (right side)
F24 20/30 Panorama roof / soft top control unit, soft top lock (Cabriolet)
F25 30 Driver's door electrical equipment (for example, power windows)
F26 30 Seat heating
F27 30 sound amplifier
F28 5 Convertible top control unit, electronics (Cabriolet)
F29 7.5 Interior lighting
F30 Reserve
F31 40 Outdoor lighting (left side)
F32 7.5 Driver assistance systems
F33 5 Air bag
F34 7.5 LEDs for Buttons/Switches, Neck Heater Relay Coil (Convertible) and Electrical Socket Relay, Interior Sound, Reversing Light Switch, Temperature Sensor, Oil Level Sensor
F35 10 Diagnostics, headlight range adjustment, air quality sensor, automatic rear-view mirrors
F36 15 Cornering Light (Right) / LED Headlight (Right)
F37 15 Cornering light (left) / LED headlight (left)
F39 30 Passenger side door electrical equipment (e.g. power windows)
F40 20 Audi A3 8V cigarette lighter fuse, 12V electrical sockets
F41 25 Seat belt tensioners (passenger side)
F42 40 Central locking system
F43 30 Windshield washer system
F44 15 four-wheel drive vehicle
F45 15 Power seat (driver's side)
F46 Reserve
F47 15 Rear window wiper
F48 Reserve
F49 5 Starter, clutch sensor
F50 Reserve
F51 Reserve
F52 Reserve
F53 30 Rear window heating
R1 Relay for vehicles with SCR system/Relay for heated headroom
R2 Seat Belt Warning Relay
R3 Reserve
R4 Multifunction relay
R5 Heated rear window relay
R6 Multifunction relay

In the engine compartment

Location of the fuse box in the engine compartment of the car
It is located on the left side of the engine compartment behind a protective cover.

General form.

No. A Description
F1 40 ESC control module
F2 40
F3 15/30 Engine control unit (petrol / diesel)
F4 5/10 Engine Cooling, Engine Components, Auxiliary Heater Relay Coils (1+2), Secondary Air Pump Relay
F5 7.5/10 Engine components, tank system
F6 5 Stop light sensor
F7 7.5/10/15 Engine parts, coolant pumps
F8 10/15 The Lambda probe
F9   Engine components, exhaust flap, automatic glow period control unit
F10 15/20 Fuel injectors, fuel control unit
F11 40 Additional heater, heating rod 2
F12 40 Additional heater, heating rod 3
F13 15/30 Automatic transmission control unit
F14 Reserve
F15 15 Tow bar
F16 20/7.5 Ignition Coil / CNC Shutoff Valve (Natural Gas Engine)
F17 7.5 ESC control unit, engine control unit
F18 5 Terminal 30 (reference voltage)
F19 30 Windscreen wipers
F20 10 Tow bar
F21   Reserve
F22 5 Terminal 50, diagnostics
F23 30 Starter
F24 40 Additional heater, heating rod 1
F25 Reserve
F26 Reserve
F27 Reserve
F28 Reserve
F29 Reserve
F30 Reserve
F31 15 Vacuum pump
F32 5 LED headlights
F33 Reserve
F34 Reserve
F35 Reserve
F36 Reserve
F37 20 Additional heating
R1 Starter relay
R3 Horn relay
  • Relay for additional air heating
  • Secondary air pump control unit
R5 The engine control unit
  • Glow plug control unit
  • Low coolant indicator control unit
R7 Relay for vehicles with additional air heating
  • Ignition coil relay
  • Auxiliary air heater relay
R9 LED Headlight Relay
R10 Reserve
Related fuse diagrams

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.

Rodney White

I'm having issues finding my ignition wire, my car looking different then the diaphragm

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