Table of Contents
The Audi A1 (chassis code 8X) is a subcompact car introduced to the public by the German automaker at the 2010 Geneva Motor Show. In this article, we provide a detailed overview of the fuse diagrams for the first-generation Audi A1 (8X), covering model years 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, and 2018, equipped with the 1.2 TFSI, 1.4 TSI, 1.6 TDI, 2.0 TDI, and 2.0 TFSI engines.
Below are the locations and photographs of the power distribution boxes. Fuses designated for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold.
Engine Compartment
The primary fuse block is mounted on the battery (depending on the model, the battery may be located in the luggage compartment). Auxiliary fuse block No. 2 is situated adjacent to the battery.
| Diagram | ||
|---|---|---|
| Fuse block No. 1 (on the battery) | ||
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| No. | Component | Rating (A) |
| FL1 | Alternator | 175 |
| FL2 | Low-output heating relay | 40 |
| Auxiliary air heater (PTC) | ||
| FL3 | Power supply | 110 |
| Unused | ||
| FL4 | Power steering control module | 80 |
| FL5 | Radiator fan control module | 50/40 |
| Thermostat | ||
| FL6 | Glow plug control module | 50 |
| FL7 | High-output heating relay | 60 |
| Battery monitoring control module | ||
| Auxiliary air heater (PTC) | ||
| Auxiliary fuse block No. 2 | ||
|
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| R1 | Auxiliary coolant pump | |
| R2 | Wiper relay 1 | |
| R3 | Wiper relay 2 | |
Passenger Compartment
Fuse block No. 1
Located on the driver's side, behind the instrument panel end cover.
Access point example.
| Diagram | ||
|---|---|---|
|
||
| No. | Component | Rating (A) |
| 1 | Digital audio control module | 30 |
| Voltage stabilizer | ||
| Infotainment system / Radio | ||
| 2 | HVAC control module | 40 |
| Terminal X (Ignition) relief relay | ||
| Blower motor control module | ||
| Blower motor | ||
| 3 | “Cigarette Lighter” fuse (Audi A1) | 20 |
| 12V power outlet | ||
| 4 | Trailer control module | 15 |
| 5 | Data bus diagnostic interface (Gateway) | 5 |
| 6 | Door control modules | 30 |
| 7 | 30 | |
| 8 | Rear window defogger | 30 |
| 9 | ABS/ESP system | 25 |
| 10 | Body Control Module (BCM) | 20 |
| 11 | Horn | 15 |
| 12 | Body Control Module (BCM) | 30 |
| 13 | Anti-theft alarm system | 5 |
| 14 | Motronic power supply relay | 5/7.5 |
| Engine Control Module (ECM) | ||
| Terminal 30 power supply relay | ||
| 15 | Body Control Module (BCM) | 5 |
| 16 | ABS control module | 5 |
| Voltage stabilizer(s) | ||
| 17 | Radiator fan motor(s) | 5 |
| 18 | Rain and light sensor | 5 |
| Mobile phone amplifier | ||
| Telephone bracket | ||
| Overhead electronics module | ||
| 19 | “Fuel Pump” fuse | 15/20 |
| 20 | Coolant pump motor | 10 |
| 21 | Steering column electronic systems control module | 5 |
| 22 | Headlight switch | 5 |
| 23 | Climatronic control module | 10 |
| A/C control module | ||
| Front passenger door control module (through April 2012) | ||
| Right rear door control module (through April 2012) | ||
| 16-pin diagnostic connector (OBD-II) | ||
| 24 | Door control modules | 10 |
| 25 | Body Control Module (BCM) | 10 |
| 26 | Radiator fan motor(s) | 20 |
| 27 | Body Control Module (BCM) | 30 |
| 28 | Windshield wipers | 20 |
| 29 | Glow plug control module | 5/20 |
| Brake vacuum pump | ||
| 30 | Brake light switch (through October 2011) | 10 |
| Clutch pedal position sensor (through October 2011) | ||
| Auxiliary coolant pump relay | ||
| Oxygen sensor (O2) heater (through October 2011) | ||
| Power supply for fuses No. 9 and No. 10 in fuse block F (November 2011 – October 2014) | ||
| ABS control module (from November 2011) | ||
| 31 | Mass Air Flow (MAF) sensor (through October 2014) | 5/7.5/15 |
| Fuel pump relay (through October 2014) | ||
| Low and high-output heating relays (through October 2014) | ||
| Engine components power supply relay (through October 2014) | ||
| Fuel pressure control valve (through October 2014) | ||
| Coolant circulation pump relay (through October 2014) | ||
| 32 | Engine Control Module (ECM) | 15/30 |
| Clutch pedal position sensor (through October 2011) | ||
| Brake light switch (through October 2011) | ||
| 33 | Engine management system | 15/20/30 |
| 34 | Radiator fan control module (through October 2014) | 10/15 |
| Heating resistor relay (through October 2014) | ||
| Boost pressure control solenoid valve (through October 2014) | ||
| EVAP canister purge regulator valve 1 (through October 2014) | ||
| Camshaft adjustment valve 1 (through October 2014) | ||
| Turbocharger bypass valve (through October 2014) | ||
| Intake manifold runner control valve (through October 2014) | ||
| Exhaust flap valve 1 (through October 2014) | ||
| EGR cooler changeover valve (through October 2014) | ||
| Oil pressure control valve (through October 2014) | ||
| Cylinders 2 and 3 intake and exhaust camshaft adjusters (through October 2014) | ||
| EGR cooler pump | ||
| 35 | CD changer | 5 |
| 36 | Infotainment system / Radio | 5 |
| TV tuner | ||
| Telephone module | ||
| Smart card reader | ||
| 37 | Instrument cluster control module | 5 |
| 38 | Auto-dimming interior rearview mirror | 5 |
| 39 | Infotainment system / Radio | 7.5/15 |
| Information electronics control module | ||
| 40 | Navigation system display | 5 |
Fuse block No. 2
Located on the passenger side, behind the instrument panel end cover.
| Diagram | ||
|---|---|---|
|
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| No. | Component | Rating (A) |
| 1 | Electronic steering column lock | 7.5 |
| 2 | Trailer control module | 20 |
| 3 | 20 | |
| 4 | Transmission Control Module (TCM) | 30 |
| 5 | Headlight washer system | 30 |
| 6 | Central locking system, GPS | 5 |
| 7 | Remote control receiver for central locking and remote start | 7.5 |
| 8 | Transmission Control Module (TCM) | 15 |
| 9 | Sunroof module | 20 |
| 10 | Transmission Control Module (TCM) | 10 |
| 11 | Spare / Unused | - |
| 12 | Spare / Unused | - |
| 13 | Reverse light switch | 5 |
| Gear selector sensor control module | ||
| Mechatronic unit for dual-clutch transmission (DSG) | ||
| 14 | High-pressure sensor (A/C) | 10 |
| Engine oil level and temperature sensor | ||
| A/C control module | ||
| Power outlet relay | ||
| Auto-dimming interior rearview mirror | ||
| 16-pin diagnostic connector (OBD-II) | ||
| 15 | Data bus diagnostic interface (Gateway) | 5 |
| 16 | HVAC control module | 5 |
| Structure-borne sound actuator control module | ||
| 17 | Headlight switch | 7.5 |
| Starter relays 1 and 2 | ||
| Voltage stabilizer | ||
| Auto-dimming interior rearview mirror relay | ||
| Left and right headlights | ||
| 18 | Headlight switch | 5 |
| 19 | ABS control module (through October 2014) | 5 |
| Voltage stabilizer 2 (through October 2014) | ||
| Electronic damping control module (from January 2014) | ||
| 20 | Driver's seat heating control | 5 |
| Front passenger seat heating control | ||
| Hazard warning light switch | ||
| Rear window defogger switch | ||
| ASR and ESP switch | ||
| Parking aid (Parktronic) switch | ||
| Tire pressure monitoring system (TPMS) switch | ||
| Start-Stop system switch | ||
| Trailer detection control module | ||
| Heated washer nozzles (left and right) | ||
| 21 | Power steering control module | 5 |
| 22 | Mass Air Flow (MAF) sensor | 5 |
| Fuel pump control module | ||
| Positive Crankcase Ventilation (PCV) heating element | ||
| 23 | Supplemental Restraint System (SRS) / Airbag control module | 5 |
| Front passenger airbag deactivation indicator | ||
| 24 | Parking aid control module | 5 |
| 25 | Headlight range control module | 5 |
| 26 | Seat heating control module | 30 |
| 27 | Rear window wiper motor | 15 |
| 28 | Engine Control Module (ECM) | 5 |
| Mass Air Flow (MAF) sensor | ||
| 29 -- 40 |
Spare / Unused | - |
Relay block
Located under the dashboard on the driver's side.
General view.
| Diagram | ||
|---|---|---|
|
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| No. | Component | Rating (A) |
| 1 | Voltage stabilizer(s) | 40 |
| 2 | Fuse block No. 2 in the passenger compartment, fuses 1 - 12 | 50 |
| 3 | Terminal 15 power supply relay | 40 |
| 4 | ABS control module | 40 |
| 5 | Voltage stabilizer(s) | 5 |
| 6 | Onboard power supply control module (BCM) | 5 |
| Voltage stabilizer(s) | ||
| Engine Control Module (ECM) | ||
| 7 | Brake light switch; Clutch pedal position sensor | 10 |
| 8 | Upstream and downstream oxygen (O2) sensors (depending on equipment) | 5 |
| R1 | Headlight washer relay | |
| Horn relay | ||
| R2 | Terminal 15 power supply relay | |
| R3 | Terminal X (Ignition) relief relay | |
| R4 | “Fuel Pump” relay (Audi A1) | |
| Heater relay | ||
| R5 | High-output heating relay | |
| R6 | Starter relay | |
| R7 | Rear window defogger relay | |
| R8 | Motronic power supply relay | |
| Power outlet relay | ||
| Terminal 30 power supply relay | ||
| R9 | Low-output heating relay | |
| R10 | Power outlet relay | |
| Motronic power supply relay | ||
| Terminal 30 power supply relay | ||
| R11 | Auto-dimming interior rearview mirror (if equipped) | |
| R12 | Unused | |
| R13 | Voltage stabilizer(s) | |
| R14 | Unused | |
| R15 | Auto-dimming interior rearview mirror (if equipped) | |
General Arrangement
Locations of the electronic control modules and components.
|
|
| No. | Component |
| 1 | ABS control module |
| 2 | A/C control module |
| 3 | Battery (Diesel engines) |
| 4 | Battery (Gasoline engines, in luggage compartment) |
| 5 | Diagnostic connector (OBD-II) |
| 6 | Data bus diagnostic interface (Gateway) |
| 7 | Driver's door control module |
| 8 | Left rear door control module |
| 9 | Front passenger door control module |
| 10 | Right rear door control module |
| 11 | Engine Control Module (ECM) |
| 12 | Engine compartment fuse blocks |
| 13 | |
| 14 | Passenger compartment fuse and relay blocks |
| 15 | |
| 16 | |
| 17 | Fuse and relay block on the battery in the luggage compartment (Gasoline engines) |
| 18 | Glow plug control module |
| 19 | Headlight range control module |
| 20 | Blower motor resistor (integrated into the HVAC module) |
| 21 | Horns |
| 22 | |
| 23 | Remote control receiver for central locking and remote start |
| 24 | Body Control Module (BCM) |
| 25 | Ambient air temperature sensor |
| 26 | Parking aid control module |
| 27 | Power steering control module |
| 28 | Seat heating control module |
| 29 | Steering column electronic systems control module (mounted on the steering column) |
| 30 | Electronic steering column lock module (mounted on the steering column) |
| 31 | Supplemental Restraint System (SRS) / Airbag control module |
| 32 | Trailer control module (left side of the luggage compartment) |
| 33 | Transmission Control Module (TCM) (mounted on the transmission) |
| 34 | Voltage stabilizer module 1 (located under the floor mat) |
| 35 | Voltage stabilizer module 2 (located in passenger compartment fuse and relay block No. 3) |
| 36 | Battery monitoring control module (Gasoline engines, in luggage compartment) |
| 37 | Radiator fan control module |
| 38 | A/C blower motor control module |
| 39 | Instrument cluster control module |
| 40 | Fuel pump control module (mounted on the fuel tank) |
Great, at last I have found a site that simply explains the fuse and relay locations and there purpose. Brilliant, well done
Where can I locate the reverse light/parking aid fuse. Can’t seem to see any on the diagrams shown above. Thanks
AUDI A1 sport 999cc