Audi A1 (8X; 2010 - 2018) fuses and relays

The Audi A1 (body index - 8X) is a subcompact car presented by the German company to the general public in 2010 at the Geneva Motor Show. In this material, we will analyze in detail the fuse diagrams of the Audi A1 (8X) of the 1st generation 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 with engines 1.2 TFSI, 1.4 TSI, 1.6 TDI, 2.0 TDI, 2.0TFSI .

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 engine compartment

Places for installing the fuse board and relay box in the engine compartment of the car.
The main unit is the battery (also, depending on the model, it can be in the trunk). Add. block number 2 is located near the battery.

Block #1 on the battery
No. Purpose A
FL1 Generator 175
FL2 Heating relay low output 40
Additional air heater
FL3 Source of power 110
or not used
FL4 Power steering control unit 80
FL5 Radiator fan control unit 50/40
FL6 Glow plug control unit 50
FL7 High performance heating relay 60
Battery Monitor Control Unit
Additional air heater
Add. block #2
R1 additional coolant pump
R2 Wiper Relay #1
R3 Wiper Relay #2

In the passenger compartment

Fuse box #1

Location of the main fuse box in the passenger compartment
Located on the driver's side in the front dashboard.

Access example.

No. Purpose A
1 Digital audio control unit 30
Voltage regulator
radio tape recorder
2 Heater control unit  40
Contact X unload relay
Supply fan control unit
Supply air fan
3 Cigarette lighter fuse Audi A1 20
12V socket
4 Trailer control unit 15
5 Diagnostic unit 5
6 Door function control units 30
7 30
8 Rear window heater 30
9 ABS/ESP system 25
10 Multifunction control box 20
11 Sound signals 15
12 Multifunction control box 30
13 Anti-theft system 5
14 Motronic power supply relay 5/7.5
The engine control unit
Terminal 30 relay supply voltage
15 Multifunction control box 5
16 ABS control unit 5
Voltage regulator(s)
17 Cooling fan motor(s) 5
18 Rain and light sensor 5
mobile phone amplifier
Phone holder
Front ceiling module
19 Fuel pump fuse 15/20
20 Coolant pump motor 10
21 Steering column electrical control unit 5
22 Light switch 5
23 Climatronic control unit 10
Air conditioner control unit
Front passenger door control unit (up to April 2012)
Rear right door control unit (until April 2012)
Plug connector, 16-pin, diagnostic socket
24 Door function control units 10
25 Multifunction control box 10
26 Cooling fan motor(s) 20
27 Multifunction control box 30
28 windshield wiper 20
29 Glow plug control unit 5/20
Vacuum brake pump
30 Stoplight switch (before October 2011) 10
Clutch pedal sensor (before October 2011)
Auxiliary coolant pump relay
Lambda probe heating element (up to October 2011)
Power supply for fuse #9 and #10 on fuse box F, (November 2011 to October 2014)
ABS control unit, from November 2011
31 Air mass meter, up to October 2014 5/7.5/15
Fuel pump relay, before October 2014
Relay for low and high heating power, until October 2014
Power supply relay for engine components, up to October 2014
Fuel pressure control valve, up to October 2014
Coolant circulation relay, before October 2014
32 Engine control unit 15/30
Clutch pedal position sensor, before October 2011
brake light sensor, before October 2011
33 Engine management 15/20/30
34 Radiator fan control unit, up to October 2014 10/15
Heating resistance relay, before October 2014
Boost pressure control solenoid valve, up to October 2014
Solenoid valve 1 absorber, before October 2014
Valve 1 for adjusting the valve timing, up to October 2014
Turbocharger bypass valve, up to October 2014
Intake manifold valve, before October 2014
Exhaust valve 1, up to October 2014
EGR cooler changeover valve, up to October 2014
Oil pressure control valve, up to October 2014
Cylinder 2 and 3 camshaft adjuster for intake and exhaust, up to October 2014
EGR cooler pump
35 CD changer 5
36 Radio 5
TV tuner
Chip card reader
37 Instrument cluster control unit 5
38 Auto-dimming interior rear view mirror 5
39 radio tape recorder 7.5/15
Information electronics control unit 
40 Navigation display unit 5

Fuse box #2

Location of the fuse block No. 2 in the passenger compartment
Located on the passenger side at the end of the front dashboard.

No. Purpose A
1 Steering column lock 7.5
2 Trailer control unit 20
3 20
4 Transmission 30
5 Headlight washers 30
6 Central locking, GPS 5
7 Remote control system for central locking and engine start 7.5
8 Transmission 15
9 Sunroof 20
10 Transmission 10
11 Reserve -
12 Reserve -
13 Reversing light switch 5
Selector sensor control unit
Mechatronics for dual clutch gearboxes
14 high pressure sensor 10
Engine oil level and temperature sensor
Air conditioner control unit
Socket relay
Auto-dimming interior rear view mirror
Connector, 16-pin, diagnostic connector
15 Data bus diagnostic interface 5
16 Heater control unit 5
Structure noise control unit
17 Light switch 7.5
Starter relay 1/2
Voltage regulator
Interior rearview mirror relay with automatic dimming function
Front left and right headlight
18 Light switch 5
19 ABS control unit, up to October 2014 5
Voltage stabilizer 2, before October 2014
Electronic damping control unit, from January 2014
20 Driver's seat heating control 5
Front passenger seat heating control
Emergency light button
Heated rear window switch
ASR and ESP button
Parking aid activation button
Tire pressure indicator key
Start-Stop button
Trailer detection control unit
Heating resistor for left and right injectors
21 Power steering control unit 5
22 Air mass meter 5
Fuel pump control unit
Crankcase ventilation heating resistor
23 Airbag control unit 5
Front Passenger Airbag Warning Light Off
24 Parking aid control unit 5
25 Headlight range control unit 5
26 Seat heating control unit 30
27 Rear wiper motor 15
28 Engine control unit 5
Air mass meter 
Reserve -

Relay box

Location of the additional fuse box and relay No. 3 in the passenger compartment
Located under the dashboard on the driver's side.

General form.

No. Purpose A
1 Voltage regulator(s) 40
2 Fuse box No. 2 in the cabin, fuses 1 - 12 50
3 Terminal 15 supply voltage relay 40
4 ABS control unit 40
5 Voltage regulator(s) 5
6 Power control unit 5
Voltage regulator(s)
The engine control unit
7 Stoplight switch; Clutch position sensor 10
8 Oxygen sensors before and after the catalytic converter (depending on equipment) 5
R1 Headlight washer relay
signal relay
R2 Terminal 15 supply voltage relay
R3 X contact reset relay
R4 Audi A1 fuel pump relay
heater relay
R5 High performance heating relay
R6 Starter relay
R7 Heated rear window relay
R8 Motronic power supply relay
Power outlet
Terminal 30 supply voltage
R9 Heating relay low output
R10 Relay Power Socket
Motronic power supply relay
Terminal 30, supply voltage, relay
R11 Automatic anti-glare rearview mirror (if equipped)
R12 Not
R13 Voltage regulator(s)
R14 Not
R15 Automatic anti-glare rearview mirror (if equipped)

General arrangement

Layout of the electronic components.

No. Component
1 ABS electronic control module
2 Electronic air conditioning control module
3 Battery-Diesel
4 Battery - gasoline - in luggage compartment
5 Diagnostic connector
6 Diagnostic unit
7 Driver door electrical control module
8 Left rear door electrical control module
9 Passenger door electrical control module
10 Right rear door electrical control module
11 Electronic Engine Control Module(ECM)
12 Underhood fuse boxes
14 Fuse boxes and relays in the cabin
17 Fuse box and relay in the trunk on the battery (petrol)
18 glow plug control module
19 Headlight range control module
20 Heater blower motor resistor - in heater module
21 Horn
23 Control module for central locking and engine start remote control system
24 Multifunctional control module
25 Ambient temperature sensor
26 Parking system control module
27 Power steering control module
28 Seat heating control module
29 Steering column electrical control module - on the steering column
30 Steering column lock control module - on the steering column
31 SRS electronic control module
32 Trailer Electrical Control Module - LH Trunk
33 Electronic Transmission Control Module (TCM) - on transmission
34 Voltage regulator module 1 - under the mat
35 Voltage Regulator Module 2-in Dashboard Fuse/Relay Module 3
36 Battery control module - petrol - in luggage compartment
37 Cooling fan motor control module
38 A/C Heater Fan Motor Control Module
39 Instrument Cluster Control Module
40 Fuel pump control module - in tank
Related fuse diagrams
S Howlett

Great, at last I have found a site that simply explains the fuse and relay locations and there purpose. Brilliant, well done

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