Audi A1 (body code – 8X) – subcompact car, went on sale went in September 2010. Years of issue 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020. There is also an electric car Audi A1 e-tron on sale. Our material provides information about the locations of the boxes and the description of the fuses and relays of the Audi A1. The placement of the boxes is also relevant for the 5-door car and the Audi S1 (Sportback) version.
The purpose of fuses and relays, as well as their number, may differ from those presented and depend on the year of manufacture and the level of electrical equipment of your car.
Contents
Locations
- Fuse holder D -SD-;
- Fuse holder A -SA-;
- Fuse box C -SC-;
- Relay / fuse holder F -SF-;
- Fuse holder B -SB-, fuse holder H -SH-;
- Fuse holder B -SB-.
We draw your attention to the fact that changes in the scheme are possible depending on the configuration and year of manufacture of the car! Check the description on the back of the protective cover.
Fuse box – No. 1
Diagram
Description of the circuit
ST1 panel (black)
| 1 | 7.5 | Control unit el. steering column lock -J764- |
| 2 | 20 | Trailer detection control unit -J345- |
| 3 | 20 | Trailer detection control unit -J345- |
| 4 | 30 7.5 | Mechatronic unit for dual clutch gearbox -J743-, up to October 2014 Electronic damping control unit -J250-, from January 2014 |
| 5 | 30 | Headlamp washer relay -J39- Headlight washer pump -V11- |
| 6 | 5 | Vehicle location system interface control unit -J843- |
| 7 | 7.5 | Entry and start monitoring system control unit -J518- |
| 8 | 15 | Mechatronic unit for dual clutch gearbox -J743-, up to October 2014 |
| 9 | 20 | Sliding sunroof motor -V1- |
| 10 | 7.5 | Selector lever sensor control unit -J587- |
| 11 | 15 | Relay for voltage supply for engine electronics -J757-, up to October 2014 Fuel pressure regulating valve -N276-, up to October 2014 |
| 12 | – | Not used |
ST2 panel (brown)
| 1 | 5 | Reversing light switch -F4- Selector lever sender control unit -J587- Mechatronics for dual clutch gearbox -J743- |
| 2 | 10 | High pressure sender -G65- Engine oil level and temperature sender -G266- Air conditioner control unit -J301- Socket relay -J807- Auto dimming interior rearview mirror -Y7- 16-pin connector -T16-, diagnostic connector |
| 3 | 5 | Data bus diagnostic interface -J533- |
| 4 | 5 | Heater control unit -J65- Structure-borne noise control unit -J869- |
| 5 | 7.5 | Light switch -E1- Starter relay 1 -J906- Voltage stabilizer -J532- Starter relay 2 -J907- Automatic dimming interior mirror relay -J910- Left front headlight -MX1- Right front headlight -MX2- |
| 6 | 5 | Light switch -E1- |
| 7 | 5 | ABS control unit -J104-, up to October 2014 Voltage stabilizer 2 -J570-, up to October 2014 Electronic damping control unit -J250-, from January 2014 |
| 8 | 5 | Heated driver’s seat control -E94- Heated front passenger seat control -E95- Hazard warning lamp -E229- Heated rear window switch -E230- ASR and ESP button -E256- Parking aid button -E266- Tire pressure indicator button -E492 – Button for start / stop mode -E693- Trailer detection control unit -J345- Heating resistor for left injector -Z20- Heating resistor for right injector -Z21- |
| 9 | 5 | Power steering control unit -J500- |
| 10 | 5 7.5 | Air mass meter -G70- Fuel pump control unit -J538- Heating resistor for crankcase ventilation -N79- |
| 11 | 5 | Airbag control unit -J234- Front passenger airbag warning lamp off -K145- |
| 12 | 5 | Parking aid control unit -J446- |
| 13 | 5 | Headlight range control unit -J431- |
| 14 | 30 | Seat heating control unit -J882- |
| 15 | 15 | Rear wiper motor -V12- |
| 16 | 5 | Engine control unit -J623- Air mass meter -G70- |
ST3 panel (red)
- Not used
- Not used
- 5-10A – Four-wheel drive control unit -J492-, gradual withdrawal
- Not used
- Not used
- Not used
- Not used
- Not used
- Not used
- 5-10A-Special vehicle control unit -J608-
- Not used
- Not used
Box photo
Fuse box – No. 2
The box is located on the positive pole of the battery (only for vehicles with a battery in the luggage compartment) .
Designation
- Not used;
- Onboard power supply / Power supply of engine components;
- Not used;
- Battery cut-off igniter -N253-.
Fuse box – No. 3
Diagram
ST1 panel (black)
| 1 | 30 | Digital sound system control unit -J525- Voltage stabilizer -J532- Radio -R- |
| 2 | 40 | Heater control unit -J65- contact relief relay X -J59- supply fan control unit -J126- supply air fan -V2- |
| 3 | 20 | Cigarette lighter -U1- 12 V socket -U5- |
| 4 | 15 | Trailer detection control unit -J345- |
| 5 | 5 | Data bus diagnostic interface -J533- |
| 6 | 30 | Front passenger door control unit -J387- Rear right door control unit -J389- |
| 7 | 30 | Driver door control unit -J386- Rear left door control unit -J388- |
| 8 | 30 | Heated rear window relay -J9- Heated rear window -Z1- |
| 9 | 25 | ABS control unit -J104- |
| 10 | 20 | Onboard supply control unit -J519- |
| 11 | 15 | High-frequency horn -H2- Low-frequency horn -H7- Horn relay -J413- |
| 12 | 30 | Onboard supply control unit -J519- |
The fuse number 3 for 20A is responsible for the cigarette lighter.
ST2 panel (brown)
| 1 | 5 | Anti-theft alarm horn -H12- Anti-theft alarm sender -G578- |
| 2 | 5 5 7.5 | Terminal 30 voltage supply relay -J317- ( 22) Motronic supply relay -J271- (21) Engine control unit -J623- |
| 3 | 5 | Onboard supply control unit -J519- |
| 4 | 5 15 | ABS control unit -J104- Voltage stabilizer 2 -J570- Four -wheel drive control unit -J492- |
| 5 | – | Not used |
| 6 | five | Rain and light sensor -G397- Mobile phone amplifier -R86- Telephone holder -R126- Front roof module -WX3- |
| 7 | 15 20 | Fuel pump control unit -J538- Fuel pump relay -J17- ( 22) |
| 8 | 10 | Relay for additional coolant pump -J496-, up to October 2014 |
| 9 | 5 | Steering column control unit -J527- |
| 10 | 5 | Light switch -E1- |
| 11 | 10 | Climatronic control unit -J255- Air conditioning control unit -J301- Front passenger door control unit -J387- (up to April 2012) Rear right door control unit -J389- (up to April 2012) 16-pin connector – T16-, diagnostic connector |
| 12 | 10 | Driver’s door control unit -J386- (up to April 2012) Rear left door control unit -J388- (up to April 2012) |
| 13 | 10 | Onboard supply control unit -J519- |
| 14 | 20 | Socket relay -J807- only for vehicles without hitch socket |
| 15 | 30 | Onboard supply control unit -J519- |
| 16 | 20 | Switching relay 1 for wiper motor -J368-, up to October 2014 Relay for power supply for engine components -J757- Ignition coils 1 with output stage -N70- |
Relay holder – No. 4
Designation
- 40A Voltage stabilizer -J532-
- 50A Power supply for fuse holder 1 -ST1- on fuse holder D -SD-
- 40A Terminal 15 voltage supply relay -J329-
- 40A ABS control unit -J104-
- 5A Voltage stabilizer 2 -J570-, gradual output
- 5A Onboard supply control unit -J519-, voltage stabilizer -J532-
- 16 10A – Brake light switch -F- (from November 2011 to October 2014) / clutch pedal position sender -G476- (from November 2011 to October 2014)
- 17 5A – Lambda probe heater -Z19- (from November 2011 to October 2014)
Fuse box – No. 5
Assignment
- 175A – Generator -C-
- 40A – Low heat output relay -J359- / Additional air heater -Z35-
- 110A – Power supply of the on-board network / Power supply of engine components
- 80A – Power steering control unit -J500-
- 50A / 40A – Coolant blower thermal switch -F18- / Radiator blower control unit -J293-
- 50A – Glow plug control unit -J179-
- 60A – High heat output relay -J360- / Battery monitor control unit
Fuse box – No. 6
Diagram
Protected components
| 1 | 110 / 50A Power supply for electrical system, power supply for engine components, radiator fan control unit -J293, radiator fan -V7- |
| 2 | 250A Alternator -C-, Voltage regulator -C1- |
| 3 | Battery + |
| 4 | 80A Power steering control unit -J500- |
| 5 | 50A Glow plug control unit -J179-, Glow plug 1 -Q10-, Glow plug 2 -Q11-, Glow plug 3 -Q12-, Glow plug 4 -Q13- |
| 6 | 50A Radiator fan control unit -J293-, Radiator fan -V7- |
| 125A Power supply for on-board network, power supply for engine components |
Fuses
| 1 | 40A Heater element for auxiliary air heater -Z35-, |
| stage 1 | |
| 2 | 30A Radiator fan control unit -J293- |
| Radiator fan -V7- | |
| 3 | Vacant |
| 4 | 40A Heater element for auxiliary air heater -Z35-, |
| stage 2 | |
| 5 | 40A Heater element for auxiliary air heater -Z35-, |
| stage 3 | |
| 6 | 30A Mechatronic unit for dual clutch gearbox -J743- |
| 7 | 7,5A Engine control unit -J623- |
| 8 | 20A Wiper motor switch-over relay 1 -J368- |
| Wiper motor switch-over relay 2 -J369- | |
| 9 | 5A Battery monitor control unit -J367- |
| 10 | 10A Suppression filter -C24- |
| 11 | Vacant |
| 12 | 10/15A for models with 1.0l/1.4l petrol engine only: |
| Lambda probe heater -Z19- | |
| Lambda probe 1 heater after catalytic converter -Z29- | |
| 13 | 5A Brake light switch -F- |
| Clutch position sender -G476- | |
| 14 | 5/10A Thermal switch for air conditioning system shut-off -F163- |
| Fuel metering valve -N290- | |
| Oil pressure regulation valve -N428- | |
| Cylinder head coolant valve -N489- | |
| Coolant circulation pump -V50- | |
| Circulation pump -V55- | |
| Charge air cooling pump -V188- | |
| Auxiliary heating pump -V488- | |
| 15 | 5A Onboard supply control unit -J519-, T52c/34 |
| Engine control unit -J623-, T91/67;T94/… | |
| Voltage stabiliser -J532-, T12aa/4 | |
| 16 | 30A Starter motor -B- |
| 17 | 15/30A Engine control unit -J623- |
| 18 | 10A Oil level and oil temperature sender -G266- |
| Fuel pump relay -J17- | |
| Radiator fan control unit -J293- | |
| Low heat output relay -J359- | |
| High heat output relay -J360- | |
| Charge pressure control solenoid valve -N75- | |
| Recirculation valve for turbocharger -N249- | |
| Intake manifold flap valve -N316- | |
| Oil pressure regulation valve -N428- | |
| Cooling oil valve -N471- | |
| 19 | 7,5/10/20A Engine component current supply relay -J757- |
| Fuel pressure regulating valve -N276- | |
| Fuel metering valve -N290- | |
| Injector 2 for cylinder 1 -N532- | |
| Injector 2 for cylinder 2 -N533- | |
| Injector 2 for cylinder 3 -N534- | |
| Injector 2 for cylinder 4 -N535- | |
| Actuator 1 for camshaft adjustment -F366- | |
| Actuator 2 for camshaft adjustment -F367- | |
| Actuator 3 for camshaft adjustment -F368- | |
| Actuator 4 for camshaft adjustment -F369- | |
| Actuator 5 for camshaft adjustment -F370- | |
| Actuator 6 for camshaft adjustment -F371- | |
| Actuator 7 for camshaft adjustment -F372- | |
| Actuator 8 for camshaft adjustment -F373- | |
| Vacuum pump for brakes -V192- | |
| 20 | 5/10/20A Automatic glow period control unit -J179- |
| Exhaust flap control unit -J883- | |
| Crankcase breather heater element -N79- | |
| Activated charcoal filter solenoid valve 1 -N80- | |
| Camshaft control valve 1 -N205- | |
| Exhaust camshaft control valve 1 -N318- | |
| Continued coolant circulation pump -V51- | |
| Sender 1 for secondary air pressure -G609- | |
| Sender 2 for secondary air pressure -G610- |
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You still have questions, ask them in the comments.
We have a 2015 A1 and the cigarette lighter / 12 V charger is not working. There is no fuse in the number 3 position. Seems like that socket has nothing in to hold a fuse. Can the fuse be in a different position?
Hi did you ever find out where the cigarette lighter / 12V charger fuse was located? I have the same issue with my Audi A1 2017 model