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 .

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

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.

Diagram
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
	Thermostat
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

Located on the driver's side in the front dashboard.

Access example.

Diagram
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
	telephone
	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

Located on the passenger side at the end of the front dashboard.

Diagram
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
29 -- 40	Reserve	-

Relay box

Located under the dashboard on the driver's side.

General form.

Diagram
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
13
14	Fuse boxes and relays in the cabin
15
16
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
22
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