This article provides detailed fuse box diagrams, along with information on their location, functions, and purpose, for both the interior and engine compartment of the Audi A3 and S3 (8V) models year 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020. Whether you are looking to identify a specific fuse or understand the overall layout of the electrical system, this comprehensive resource serves as a valuable guide. With clear visuals and accurate information, you can easily navigate the fuse block diagrams to ensure proper maintenance, troubleshooting, and electrical system management for your Audi A3 or S3.
Table of Contents
Checking and Replacing Fuses
- Turn off the ignition and malfunctioning electrical unit.
- Refer to the following fuse box diagrams to determine the corresponding fuse for the unit/module.
- Remove the cover, take off the plastic clip from the fuse panel cover.
- Using the fuse puller, remove the burnt-out fuse and replace it with an identical new one.
- Close the cover.
Notes:
- If multiple fuse amp rates are listed in a cell of the following table, such as 5/10/20, it is due to unit or module variations. Replace the burnt-out fuse with a new one of the same amp rate.
- If the new fuse blows soon after installation, promptly contact an authorized Audi dealer or qualified repair workshop to inspect the electrical system.
Warning! Do not repair fuses and never replace a burnt-out fuse with one of a higher amp rating. This may cause damage to the electrical system and pose a fire hazard.
Fuse Box Locations
Interior Fuse Box
Left-hand drive Audi A3-S3: The fuse boxes in left-hand drive vehicles are typically positioned behind a protective cover situated near the steering column. This location ensures easy access and convenient maintenance for the driver and any authorized personnel. By placing the fuse boxes in close proximity to the steering column, it allows for efficient management and quick troubleshooting of electrical systems, promoting safety and swift repairs when necessary.
Right-hand drive Audi A3-S3: In the case of right-hand drive vehicles, the fuse boxes are commonly concealed behind a cover that can be found within the glove box. This positioning ensures that the fuse boxes remain easily accessible to the driver and passengers seated on the opposite side of the vehicle. Placing the fuse boxes within the glove box facilitates straightforward fuse replacement and minimizes the need for extensive disassembly, making it convenient to address electrical issues swiftly and efficiently.
Under The Bonnet
The fuse box is situated in the left-side of the engine compartment. This placement ensures that it is easily accessible for maintenance and inspection purposes. By positioning the fuse box within the engine compartment, it allows for convenient monitoring and troubleshooting of electrical systems without the need for extensive disassembly.
Fuse Box Diagrams
Year 2012-2013
The interior fuse box of the vehicle has 53 fuses, each protecting different interior electrical components and systems. A fuse box diagram visually shows the layout of the fuses for easy identification and replacement when needed, ensuring proper functioning of interior features like lights and audio systems.
Instrument panel fuse box
Table of 53 fuses assignment and amp rate (2012-2013)
| No. | Description | Amp |
|---|---|---|
| F2 | Seat adjuster | 10A |
| F3 | Hydraulic pump for soft top (Cabriolet) | 40A |
| F4 | MMI control console, MMI components | 7.5A |
| F5 | Gateway | 5A |
| F6 | Anti-theft alarm system | 5A |
| F7 | Air conditioner/heater console, selector lever (automatic gearbox), auxiliary heating, relay coil for rear window heating | 10A |
| F8 | Diagnostics, switch for electronic parking brake, light switch, rain/light sensor, interior lighting | 10A |
| F9 | Steering column switch module | 1A |
| F10 | Display | 5A |
| F11 | Reversible belt tensioners (driver’s side) | 25A |
| F12 | MMI system | 15/20A |
| F13 | Control unit for suspension control | 20A |
| F14 | Air conditioner blower | 30A |
| F15 | Electric steering column lock | 10A |
| F16 | MMI system | 7.5A |
| F17 | Instrument cluster | 5A |
| F18 | Reversing camera | 7.5A |
| F19 | Control unit for convenience key system | 7.5A |
| F23 | Exterior lighting (right side) | 40A |
| F24 | Panorama roof/control unit for soft top, soft top lock (Cabriolet) | 20/30A |
| F25 | Door/s, driver’s side (e.g. electric windows) | 30A |
| F26 | Seat heating | 30A |
| F27 | Sound amplifier | 30A |
| F28 | Control unit for soft top, electronics (Cabriolet) | 5A |
| F29 | Interior lights | 7.5A |
| F31 | Exterior lighting (left side) | 40A |
| F32 | Driver assistance systems | 7.5A |
| F33 | Airbag | 5A |
| F34 | LEDs for buttons/switches, coil for neck heating relay (Cabriolet) and electrical socket relay, interior sound, reversing light switch, temperature sensor, oil level sensor | 7.5A |
| F35 | Diagnostics, headlight range control, air quality sensor, automatic anti-dazzle mirrors | 10A |
| F36 | Cornering light (right side) / LED headlight (right side) | 15A |
| F37 | Cornering light (left side) / LED headlight (left side) | 15A |
| F39 | Door/s, passenger’s side (e.g. electric windows) | 30A |
| F40 | Cigarette lighter, electrical sockets | 20A |
| F41 | Reversible belt tensioners (front passenger’s side) | 25A |
| F42 | Central locking system | 40A |
| F43 | Windscreen washer system | 30A |
| F44 | Four-wheel drive | 15A |
| F45 | Electrically adjustable seat (driver’s side) | 15A |
| F47 | Rear window wiper | 15A |
| F49 | Starter, clutch sensor | 5A |
| F53 | Rear window heating | 30A |
This diagram serves as a guide for identifying and replacing fuses related to various electrical components and systems in the engine bay.
Engine compartment fuse box
The assignment of fuses in the engine compartment of a Audi A3-S3, specifically for the 2012-2013 model year.
| No. | Description | Amp |
|---|---|---|
| F1 | ESC control unit | 40A |
| F2 | ESC control unit | 40A |
| F3 | Engine control unit (petrol/ diesel) | 15/30A |
| F4 | Engine cooling, engine components, supplementary heater relay coils (1+2), secondary air pump relay | 5/10A |
| F5 | Engine components, tank system | 7.5/10A |
| F6 | Brake light sensor | 5A |
| F7 | Engine components, coolant pumps | 7.5/10/15A |
| F8 | Lambda probe | 10/15A |
| F9 | Engine components, exhaust flap, control unit for automatic glow period | 5/10/20A |
| F10 | Fuel injectors, fuel control unit | 15/20A |
| F11 | Supplementary heater, heating rod 2 | 40A |
| F12 | Supplementary heater, heating rod 3 | 40A |
| F13 | Automatic gearbox control unit | 15/30A |
| F15 | Horn | 15A |
| F16 | Ignition coil/CNC shut-off valve (natural gas engine) | 20/7.5A |
| F17 | ESC control unit, engine control unit | 7.5A |
| F18 | Terminal 30 (reference voltage) | 5A |
| F19 | Windscreen wipers | 30A |
| F20 | Horn | 10A |
| F22 | Terminal 50, diagnostics | 5A |
| F23 | Starter | 30A |
| F24 | Supplementary heater, heating rod 1 | 40A |
| F31 | Vacuum pump | 15A |
| F32 | LED headlights | 5A |
| F37 | Auxiliary heating | 20A |
Year 2015
Instrument panel fuse box
Table of 53 fuses assignment and amp rate (2015)
| No. | Description | Amp |
|---|---|---|
| F1 | Engine components | 30A |
| F2 | Seat adjustment | 10A |
| F3 | Hydraulic pump cover (Cabriolet) | 40A |
| F4 | MM controls, MMI-components | 7,5A |
| F5 | Gateway | 5A |
| F6 | Anti-theft alarm system | 5A |
| F7 | Climate/heating control, selector lever (automatic transmission), parking heater, rear window heater relay coil | 10A |
| F8 | Diagnosis, electrical parking brake switch, light switch, rain / light sensor, interior lighting | 10A |
| F9 | Steering column switch module | 1A |
| F10 | Display | 5A |
| F11 | Reversible driver’s side safety belt tensioners | 25A |
| F12 | MMI area | 15/20A |
| F13 | Adaptive dampers control module | 20A |
| F14 | Climate control system blower | 30A |
| F15 | Electronic steering column lock | 10A |
| F16 | MMI area | 7,5A |
| F17 | Instrument cluster | 5A |
| F18 | Rearview camera | 7,5A |
| F19 | Convince key system control module, tank system | 7,5A |
| F20 | Tank system | 7,5A |
| F21 | Empty | — |
| F22 | Empty | — |
| F23 | Exterior lighting, heated washer fluid nozzles | 40A |
| F24 | Panorama sunroof / power top control module, power top latch (Cabriolet) | 20/30A |
| F25 | Door / driver’s side doors (for example power windows) | 30A |
| F26 | Seat heating | 30A |
| F27 | Sound-amplifier | 30A |
| F28 | Power top control module, electronics (Cabriolet) | 5A |
| F29 | Interior lights | 7,5A |
| F30 | Empty | — |
| F31 | Exterior lighting | 40A |
| F32 | Driver assistance systems | 7,5A |
| F33 | Airbag | 5A |
| F34 | Button illumination, coils for upper cab in heating relay (Cabriolet) and socket relay, interior sound, backup light switch, temperature sensor, oil level sensor | 7,5A |
| F35 | Diagnosis, headlight range control system, air quality sensor, automatic dimming rearview mirror | 10A |
| F36 | Right cornering light/ right LED-headlight | 15A |
| F37 | Left cornering light/ left LED-head light | 15A |
| F38 | Empty | — |
| F39 | Door / front passenger’s side doors (for example, power windows) | 30A |
| F40 | Sockets | 20A |
| F41 | Reversible front passenger’s side safety belt tensioners | 25A |
| F42 | Central locking components, windshield washer system | 40A |
| F43 | Headlights, lighting | 30A |
| F44 | All wheel drive | 15A |
| F45 | Empty | — |
| F46 | Empty | — |
| F47 | Empty | — |
| F48 | Empty | — |
| F49 | Starter, clutch sensor, head light relay coil | 5A |
| F50 | Empty | — |
| F51 | Empty | — |
| F52 | Empty | — |
| F53 | Rear window defogger | 30A |
Engine compartment fuse box
The assignment of fuses in the engine compartment of a Audi A3-S3, specifically for the 2015 model year.
| No. | Description | Amp |
|---|---|---|
| F1 | ESC control module | 40A |
| F2 | ESC control module | 40A |
| F3 | Engine control module (gasoline / diesel) | 15/30A |
| F4 | Engine cooling, engine components, auxiliary heater coil relay (1+2), secondary air injection pump relay | 5/10A |
| F5 | Engine components, tank system | 7,5/10/15A |
| F6 | Brake light sensor | 5A |
| F7 | Engine components, water pumps | 7,5/10/15A |
| F8 | Oxygen sensor | 10/15A |
| F9 | Engine components, exhaust door, glow time control module, SULEV valve | 5/10/20A |
| F10 | Fuel injectors, fuel control module | 15/20A |
| F11 | Auxiliary heater heating element2 | 40A |
| F12 | Auxiliary heater heating element3 | 40A |
| F13 | Automatic transmission control module | 15/30A |
| F14 | Empty | — |
| F15 | Horn | 15A |
| F16 | Ignit ion coil | 5/20A |
| F17 | ESC contra I module, engine control module | 7,5A |
| F18 | Terminal 30 (reference voltage) | 5A |
| F19 | Windshield wipers | 30A |
| F20 | Horn | 10A |
| F21 | Empty | — |
| F22 | Terminal SO diagnosis | 5A |
| F23 | Starter | 30A |
| F24 | Auxiliary heater heat ing element 1 | 40A |
| F25 | Empty | — |
| F26 | Empty | — |
| F27 | Empty | — |
| F28 | Empty | — |
| F29 | Empty | — |
| F30 | Empty | — |
| F31 | Vacuum pump | 15A |
| F32 | LED headlights | 5A |
Year 2016
Instrument panel fuse box
Table of 53 fuses assignment (2016)
| No. | Description |
|---|---|
| F1 | Engine components |
| F2 | Seat adjustment |
| F3 | Hydraulic pump cover (Cabriolet) |
| F4 | MM controls, MMI-components |
| F5 | Gateway |
| F6 | Selector lever (automatic transmission) |
| F7 | Climate / beating control, selector lever (automatic transmission), parking heater, rear window heater relay coil |
| F8 | Diagnosis, electromechanical parking brake switch, light switch , rain and light sensor, interior lighting communication box (Plug-in hybrid drive) anti-theft alarm system |
| F9 | Steering column switch module |
| F10 | Display |
| F11 | Reversible driver’s side safety belt tensioners |
| F12 | MMI area |
| F13 | Adaptive dampers control module / service plug (Plug-in hybrid drive) |
| F14 | Climate control system blower |
| F15 | Electronic steering column lock |
| F16 | MMI area |
| F17 | Instrument cluster |
| F18 | Rearview camera |
| F19 | Convince key system control module, tank system |
| F20 | Tank system |
| F21 | Empty |
| F22 | Empty |
| F23 | Exterior lighting, heated washer fluid nozzles |
| F24 | Panorama sunroof / power top control module, power top latch (Cabriolet) |
| F25 | Door / driver side doors (for example power windows) |
| F26 | Seat heating |
| F27 | Sound-amplifier |
| F28 | Power top control module, electronics (Cabriolet) |
| F29 | Interior lights |
| F30 | Empty |
| F31 | Exterior lighting |
| F32 | Driver assistance systems |
| F33 | Airbag |
| F34 | Button illumination, coils for upper cabin heating relay (Cabriolet) and socket relay, interior sound, reversing light switch, temperature sensor |
| F35 | Function lighting, diagnosis, headlight range control system, air quality sensor, automatic dimming rearview mirror |
| F36 | Right cornering light / right LED-headlight |
| F37 | Left cornering light / left LED-head light |
| F38 | High-voltage battery (Plug-in hybrid drive) |
| F39 | Door / front passenger’s side doors (for example, power windows) |
| F40 | Sockets |
| F41 | Reversible front passenger’s side safety belt tensioners |
| F42 | Central locking components, windshield washer system |
| F43 | Headlights, lighting |
| F44 | All wheel drive |
| F45 | Empty |
| F46 | Empty |
| F47 | Rear window wiper |
| F48 | Outer noise amplifier (Plug-in hybrid drive) |
| F49 | Starter, clutch sensor, headlight relay coil, high-voltage battery (Plug-in hybrid drive) |
| F50 | Empty |
| F51 | Empty |
| F52 | Empty |
| F53 | Rear window defogger |
Engine compartment fuse box
The assignment of fuses in the engine compartment of a Audi A3-S3, specifically for the 2016 model year.
| No. | Description |
|---|---|
| F1 | ESC control module |
| F2 | ESC control module |
| F3 | Engine control module (gasoline / diesel) |
| F4 | Engine cooling, engine components, auxiliary heater coil relay (1+2), secondary air injection pump relay |
| F5 | Engine components, tank system |
| F6 | Brake light sensor |
| F7 | Engine components, water pumps |
| F8 | Oxygen sensor |
| F9 | Engine components, exhaust door, glow time control module, SULEV valve |
| F10 | Fuel injectors, fuel control module |
| F11 | Auxiliary heater heating element2 |
| F12 | Auxiliary heater heating element3 |
| F13 | Automatic transmission control module |
| F14 | Empty |
| F15 | Horn |
| F16 | Ignition coil / power electronics (Plug-in hybrid drive) |
| F17 | ESC contra I module, engine control module |
| F18 | Terminal 30 (reference voltage) |
| F19 | Windshield wipers |
| F20 | Horn |
| F21 | Empty |
| F22 | Terminal SO diagnosis |
| F23 | Starter |
| F24 | Auxiliary heater heating element 1, brake booster (Plug-in hybrid drive) |
| F25 | Empty |
| F26 | Empty |
| F27 | Empty |
| F28 | Empty |
| F29 | Empty |
| F30 | Empty |
| F31 | Vacuum pump / water pump (Plug-in hybrid drive) |
| F32 | LED headlights |
| F33 | Brake booster memory (Plug-in hybrid drive) |
| F34 | Brake booster memory (Plug-in hybrid drive) |
| F34 | Relay (Plug-in hybrid drive) |
Year 2017, 2018, 2019, 2020
Instrument panel fuse box
Table of 53 fuses assignment (2017, 2018, 2019, 2020)
| No. | Description |
|---|---|
| F1 | AdBlue engine components |
| F2 | Seat adjustment |
| F3 | Power top hydraulic pump |
| F4 | Infotainment control panel, Infotainment components |
| F5 | Gateway |
| F6 | Selector lever (automatic transmission) |
| F7 | Air conditioning / heating Controls, auxiliary heating, rear window defogger relay, tire pressure monitor |
| F8 | Electromechanical parking brake switch, light switch, rain/light sensor, anti-theft alarm system, diagnostic connector, roof module, emergency cali system, headlight range control |
| F9 | Steering column switch module |
| F10 | Infotainment system display |
| F11 | Left vehicle electrical system control module |
| F12 | Infotainment components |
| F13 | Driver’s side safety belt tensioner |
| F14 | Heating / air conditioning system blower |
| F15 | Electronic steering column lock |
| F16 | Infotainment components |
| F17 | Instrument cluster |
| F18 | Rearview camera |
| F19 | Convenience access control module |
| F20 | Engine components |
| F21 | Steering column, steering wheel heating switch module |
| F23 | Panorama glass roof/power top control module, power top latch |
| F24 | Right vehicle electrical system control module |
| F25 | Driver’s side front / rear power Windows |
| F26 | Seat heating |
| F27 | Interior lights |
| F28 | Power top control module |
| F29 | Interior lights |
| F30 | Diagnostic connector |
| F32 | Front camera, parking system, ACC sensor, lañe change assist |
| F33 | Airbag |
| F34 | Hold assist button, interior sound, revers-ing light switch, temperature sensor, neck heating relay coil and socket relay, power top operation button |
| F35 | Air quality sensor, automatic dimming rearview mirror, diagnostic connector, cen-ter consolé power supply |
| F36 | Right headlight (LED, Matrix LED) |
| F37 | Left headlight (LED, Matrix LED) |
| F38 | High-voltage battery |
| F39 | Passenger’s side front / rear power Windows |
| F40 | Sockets |
| F41 | Passenger’s side safety belt tensioner |
| F42 | Central locking area |
| F43 | Sound-amplifier |
| F44 | All wheel drive |
| F47 | Rear window wiper |
| F48 | Outer sound actuator |
| F49 | Clutch sensor (relay 1+2), high-voltage battery, power electronics |
| F52 | Control module for suspensión control |
| F53 | Rear window defogger |
Engine compartment fuse box
The assignment of fuses in the engine compartment of a Audi A3-S3, specifically for the 2017, 2018, 2019, 2020 model year.
| No. | Description |
|---|---|
| F1 | Electronic Stabilization Control (ESC) |
| F2 | Electronic Stabilization Control (ESC) |
| F3 | Engine control module |
| F4 | Engine components, engine cooling, auxiliary heater coil relay (1+4+7), secondary air injection pump relay |
| F5 | Engine components, fuel tank system (diesel), CNC cut-off valve |
| F6 | Brake light switch |
| F7 | Engine components, water pumps, tank system (gasoline engine) |
| F8 | Heat oxygen sensor |
| F9 | Engine components, exhaust door, glow time control module (relay 6) |
| F10 | Fuel control module, fuel pump |
| F11 | Auxiliary heater heating element 2, engine components, secondary air pump |
| F12 | Auxiliary heater heating element 3, vacuum pump |
| F13 | Automatic transmission |
| F15 | Horn |
| F16 | Ignition coil (relay 8), power and control electronics |
| F17 | Electronic Stabilization Control (ESC), engine control module (relay 5) |
| F18 | Terminal 30 (voltage reference), battery monitoring |
| F19 | Windshield wipers |
| F20 | Anti-theft alarm system |
| F21 | Automatic transmission |
| F22 | Terminal 50 diagnosis, engine control module |
| F23 | Starter |
| F24 | Auxiliary heater heating element 1, brake booster |
| F31 | Vacuum pump, water pump, high pressure pump, fuel injectors |
| F33 | Brake pressure reservoir, recuperation, transmission fluid pump |
| F34 | Brake booster |
| F35 | A/C function relay |
| F36 | Left front headlamp |
| F37 | Parking heater |
| F38 | Right front headlamp |