Fuses and relays Audi Q3, 2011 - 2019

Production of the Audi q3 crossover was launched in 2011 and continues to this day. In our article you will find information on the locations of the relay blocks and fuses of the audi q3 with diagrams and decoding for cars 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019.

Audi q3 relay and fuse box locations


1. Fuses under the front panel
2. Relay and fuse carriers C -SC-
3. Fuse holder B -SB-
4. Fuse holder A -SA-
5. Fuse holder D -SD- (from May 2013)

In the passenger compartment


Under the panel on the left

Main fuse box diagram
Function / component A
1 Left LED headlight control unit 1 -A31- 10
2 Right LED headlight control unit 1 -A27- 10
3 Glove box light switch -E26-  5
 Driver side vanity mirror м
  Front passenger side vanity mirror contact switch -F148-
Glove box light -W6-  
Vanity mirror light, front passenger side -W14-  
Vanity mirror light, side driver -W20-
Front roof module -WX3- (not available from November 2014)
4 Front camera for driver assistance systems -R242- 5
5 Power module for left headlight -J667- 10
5 Power module for left headlight -J667- (from November 2014) 5
6 Power module for right headlight -J668- 10
6 Power module for right headlight -J668- (from November 2014) 5
7 Electronic control unit steering column lock -J764- 7,5
8 Entry and start authorization control unit -J518 - 7,5
9 Front passenger airbag deactivation warning lamp -K145-   5
Airbag control unit -J234-
10 Four-wheel drive control unit -J492- (up to April 2013) 10
11  - -
12 Mechatronic unit for dual clutch gearbox -J743-  5
 Selector lever sensor control unit -J587-
13 Oil level and oil temperature sender -G266- 5
Start / stop button -E693- 
 ASR and ESP button -E256-  
Reversing light switch -F4-
High pressure sender -G65-
Air quality sender -G238-
Climatronic control unit -J255-
 Control unit conditioner unit -J301-
relay 1 power -J701-
relay 2 power -J710-
The control lamp for aUTO HOLD -K237-
button for aUTO HOLD -E540-
Interior rear-view mirror with automatic anti-dazzle -Y7-
rearview mirror -EX5-
heating Left injector resistor -Z20-
 Right injector heating resistor -Z21-
Seat occupied recognition control unit -J706-
14 Starter relay 1 -J906- 7,5
Starter relay 2 -J907- (gradual implementation)
14 Light switch -E1- 7,5
Brake light switch -F- Brake
pedal sender -F63-
Engine control unit -J623-
Trailer detector control unit -J345-
  Electronic damping control unit -J250-
  ABS control unit -J104-
  Power steering control unit -J500-  
Data bus diagnostic interface -J533-
Terminal 15 supply relay 2 -J681-
15 Crankcase ventilation heater -N79- (only for vehicles with diesel engine) 10
15 Air mass meter -G70- (only for vehicles with petrol engine) 10
15 Control unit for headlight range control -J431- 10
Voltage stabilizer -J532-
Relay for dimming interior mirror -J910-  
Control unit for electromechanical parking brake -J540-  
Control unit for headlight range control and headlight range control -J745-
Socket relay -J807- Connector, 16-pin - T16- (diagnostic socket)
Headlight range control adjuster -E102-  
Vers. left headlight range control motor -V48-  
Vers. right headlight range control motor -V49-
16 Parking aid control unit -J446- 5
Lane change assist control unit -J769-
Control unit 2 for lane change assist -J770-
17 Reversing camera control unit -J772- 5
18 Radio -R- 5
TV tuner -R78-
Internet access control unit -J666- 
 Chip card reader control unit -J676-
19 Onboard supply control unit -J519- 5
  Voltage stabilizer -J532- Engine control unit -J623-
20 ABS control unit -J104- 5
  Air conditioner control unit -J301-
Climatronic control unit -J255-
 Interface control unit for vehicle positioning system -J843-
21  - -
22 Interior sensor -G273- 10
Hazard warning system -H12-
23 Light switch -E1- 1
Rain and light sensor -G397-
Electromechanical parking brake warning lamp -K213-
16-pin connector -T16- (diagnostic connector)
Front roof module -WX3-
24 Relay for additive dosing system -J963- 10
25 Fuse 4 on fuse holder C -SC4- 30
Fuse 5 on fuse holder C -SC5-
Fuse 6 on fuse holder C -SC6-
26 Rear window wiper motor -V12- 15
27 Starter relay 1 -J906- 40
Starter relay 2 -J907-
27 Starter relay 1 -J906- 30
Starter relay 2 -J907- (from November 2014)
28 Information electronics control unit 1 -J794- 15
Radio -R- (only for vehicles with radio)
28 Information electronics control unit 1 -J794- (only for vehicles with MMI) 7,5
29 Fuse 18 on fuse holder C -SC18- 15
Fuse 17 on fuse holder C -SC17-
30 CD changer -R41- 5
31 Display for dash panel insert -J685- 5
32 Control unit in dash panel insert -J285- 5
33 Relay for interior rearview mirror with automatic anti-dazzle function -J910- 10
34 Rear left door control unit -J388- (rear left door central locking) 10
Rear right door control unit -J389- (rear right door central locking) (up to October 2012)
35 Driver door control unit -J386- (central locking, front left door) 10
Front passenger door control unit -J387- (central locking, front right door) (up to October 2012)
36 Socket -U- Cigar 20
lighter -U1-
37 12 V socket 2 -U18- 20
12 V socket -U5-
38 Power supply relay 2-, Cl. 15 -J681- 15
39  - -
40 Trailer detection control unit -J345- 15
41 Trailer detection control unit -J345- 20
42 Trailer detection control unit -J345- 20
43 Headlamp cleaning relay -J39-   20
Headlight cleaning pump -V11-
44 Heated rear window relay -J9- 30
Heated rear window -Z1-
45 Electromechanical parking brake control unit -J540- 20
46 Rear left door control unit -J388-  30
 Rear right door control unit -J389- (up to October 2012)
46 Relay for trailer voltage supply J941 -J941- (from November 2014) 20
47 Driver door control unit -J386- (up to October 2012) 30
47 Four-wheel drive control unit -J492- (from May 2013) 15
48 Front passenger door control unit -J387- (up to October 2012) 30
49 Fuel pump relay -J17-   25
Fuel pump control unit -J538- (only for vehicles with petrol engine)
50 X-terminal unloading relay -J59-   40
Fresh air blower control unit -J126-  
Fresh air blower -V2-
51 Electromechanical parking brake control unit -J540- 20
52 Onboard supply control unit -J519- (footwell lighting, terminal 30G, terminal 58d, luggage compartment lighting) 20
Hazard warning lamp -K6-
Fuel pump relay -J17-
53 Climatronic control unit -J255- (Heated front seat with automatic air conditioning) 30
Control unit for heated front seat -J774- (Heated front seat with manual climate control)
54 Sliding sunroof control unit -J245- 220
55 Sunroof blind control unit -J394- 20
56 Electronic damping control unit -J250- 20
57 Special vehicle control unit -J608- (only for vehicles with driving aids) 10
57 Power supply relay 1 -J701- (only for vehicles for driving schools) 10
58 Power supply relay 2 -J710- (only for vehicles for driving schools) 5
59  - -
60  - -
The fuse number 36, 20A, is responsible for the cigarette lighter.
Thermal fuse box diagram
A Description
1 15 Thermal fuse 1 for driver's seat adjustment -S44-
2 15 Thermal fuse 1 for front passenger seat adjustment -S46-
3 30 Fuse for trailer terminal 30 -S77-
Relay box diagram
Decoding
1 Terminal 15 voltage supply relay -J329-
2 Horn relay -J413-
3 Socket relay -J807-
4 X contact relief relay -J59-
5 Relay for auxiliary coolant pump -J496- (only for vehicles with petrol engine)
Fuel pump relay -J17- (only for vehicles with diesel engines)
7 Relay for dimming rearview mirror -J910-
Voltage supply relay 2, terminal 15 -J681-
Headlight washer relay -J39-
8 Trailer voltage supply relay -J941-
9 Starter relay 1 -J906-
Starter relay 2 -J907-
Relay box on the onboard supply control unit
Description
1 High heat output relay -J360-
2 Low heat output relay -J359-
3 Not used
4 Relay for additive dosing system -J963-
5 Voltage supply relay 1 -J701-
5 Voltage supply relay 2 -J710-

In engine compartment


Main box location

Main box diagram (type 1)
A Description
SB1 40 Voltage stabilizer -J532- Fuse supply -SC28- to -SC33- (only for vehicles with start / stop system)
SB2 10 Electric lumbar support adjustment Button for lumbar support for driver's seat -E176-
Motor for longitudinal adjustment of lumbar support for driver's seat -V125-
Motor for lumbar support for driver's seat height -V129-
Switch for lumbar support for front passenger seat -E177-
Motor for longitudinal adjustment of front seat passenger side -V126-
Motor for lumbar support, front passenger seat height -V130-
SB3 5 Onboard supply control unit -J519-
Battery monitoring control unit -J367-
SB4 30 ABS control unit J104 -J104- (MK60 valves)
SB5 15 Mechatronic unit for dual clutch gearbox -J743- 
Selector lever sensor control unit -J587-
SB6 5 Steering column control unit -J527-
SB7 30 Onboard supply control unit -J519- (left turn signal, left dipped beam, left high beam, left fog lamp, right headlight for adaptive lighting, front right parking light, right daytime running light, rear left parking light, right brake light , right fog light)
SB8 20 Windscreen and rear window washer pump -V59- Rear window wiper motor -V12-
Central locking for rear right and left doors, fuel flap, rear window lock
SB9 5 Mobile phone amplifier -R86-
Telephone holder -R126-
SB10 5 Terminal 30 supply relay -J317-
Engine control unit -J623- (only for models with diesel engine)
SB10 10 Main relay -J271-
Engine control unit -J623- (only for models with petrol engine)
SB11 - Not used
SB12 5 Data bus diagnostic interface -J533-
SB13 30 Engine control unit -J623- (only for vehicles with diesel engine)
SB13 25 Engine control unit -J623- (only for vehicles with petrol engine)
SB14 20 Fuel pressure regulating valve -N276-
Fuel metering valve -N290- (only for vehicles with diesel engine)
SB14 20 Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292- (only for vehicles with petrol engine)
SB15 5 Glow plug control unit -J179- (only for vehicles with diesel engine)
SB15 10 Lambda probe heater -Z19- 
Lambda probe 1 heater after catalytic converter -Z29- (only for vehicles with petrol engine)
SB16 30 Onboard supply control unit -J519- (right turn signal, right dipped beam, right main beam, right fog lamp, left headlight for adaptive lighting, front left parking light, left daytime running light, rear right parking light, left brake light , right reversing light, license plate light, left fog light)
SB17 15 Horn relay -J413-
High tone signal -H2- 
Low tone signal -H7-
SB18 30 Information electronics control unit 1 -J794-
Radio -R-
Voltage stabilizer -J532-
Digital sound system control unit -J525-
SB19 30 Wiper motor control unit -J400-
SB20 20 Fuel pressure regulating valve -N276- (only for vehicles with petrol engine)
SB21 10 Lambda probe heater -Z19- (only for vehicles with diesel engine)
SB21 25 Fuel pressure regulating valve -J538- (only for vehicles with petrol engine)
SB22 5 Clutch pedal position sender -G476-
SB23 10 Charge pressure control solenoid valve -N75-
valve Exhaust gas recirculation cooler valve -N345-
Air mass meter -G70- (only for vehicles with diesel engine)
SB24 10 Fuel pump relay -J17-
Radiator fan control unit -J293-
Low heat output relay -J359-
High heat output relay -J360-
Exhaust gas recirculation cooler pump -V400- (only for vehicles with diesel engine)
SB24 10 Relay for additional coolant pump -J496-
Radiator fan control unit -J293- 
Engine power supply relay -J757-
Charge pressure control solenoid valve -N75-
Canister solenoid valve 1 -N80-
Camshaft timing valve 1 -N205-
Turbocharger bypass valve -N249 -
Intake manifold flap valve -N316- 
Oil pressure regulating valve -N428- (only for vehicles with petrol engine)
SB25 40 ABS control unit -J104- (MK60 ESP pump)
SB26 30 Fuse 34 on fuse holder C -SC34-
Fuse 35 on fuse holder C -SC35-
SB27 50 Glow plug control unit -J179- Glow plug
1 -Q10- Glow plug
2 -Q11- Glow plug
3 -Q12- Glow plug
4 -Q13- (only for vehicles with diesel engine)
SB28 50 Fuse for trailer terminal 30 -S77- (Australia only)
SB29 30 Thermal fuse 1 for driver's seat adjustment mechanism -S44- 
Thermal fuse 1 for front passenger seat adjustment mechanism -S46-
SB30 50 Terminal 15 supply relay -J329-
Fuse supply: -SC9- bis -SC16-, -SC25-, -SC26-, -SC27-
Relay
A1 Main relay -J271- (only for vehicles with diesel engines)
Terminal 30 voltage supply relay -J317- (only for vehicles with diesel engines)
A2 Relay for voltage supply for engine electronics -J757- (only for vehicles with diesel engines)
Jumper, glow plug control unit -J179- (only for vehicles with diesel engines)
Main box photo and diagram (type 2)
A Description
SB1 15 Mechatronic unit for dual clutch gearbox -J743-
Selector lever -E313-
SB2 30 ABS control unit -J104- (MK60 valves) up to October 2014
SB2 40 ABS control unit -J104- (MK60 valves) from November 2014
SB3 15 Horn relay -J413-
High tone signal -H2- 
Low tone signal -H7-
SB4 40 Voltage stabilizer -J532-
Fuse supply -SC28- to -SC33- (only for vehicles with start / stop system)
SB5 5 Onboard supply control unit -J519-
Battery monitoring control unit -J367-
SB6 30 Onboard supply control unit -J519- (right turn signal, right dipped beam, right main beam, right fog lamp, left headlight for adaptive lighting, front left parking light, left daytime running light, rear right parking light, left brake light , right reversing light, license plate light, left fog light)
SB7 20 Front and rear windscreen washer pump -V59-
SB8 30 Onboard supply control unit -J519- (left turn signal, left dipped beam, left high beam, left fog lamp, right headlight for adaptive lighting, front right parking light, right daytime running light, rear left parking light, right brake light , right fog light)
SB9 10 Electric lumbar support adjustment Button for lumbar support for driver's seat -E176-
Motor for longitudinal adjustment of lumbar support for driver's seat -V125-
Motor for lumbar support for driver's seat height -V129-
Switch for lumbar support for front passenger seat -E177-
Motor for longitudinal adjustment of front seat passenger side -V126-
Motor for lumbar support, front passenger seat height -V130-
SB10 5 Glow plug control unit -J179- (only for vehicles with diesel engine)
SB10 10 Lambda probe heater -Z19- 
Lambda probe 1 heater after catalytic converter -Z29- (only for vehicles with petrol engine)
SB11 5 Steering column control unit -J527-
SB12 5 Mobile phone amplifier -R86-
Telephone holder -R126-
SB13 5 Terminal 30 supply relay -J317-
Engine control unit -J623- (only for models with diesel engine)
SB13 5 Main relay -J271-
Engine control unit -J623- (only for models with 2.5 l petrol engine)
SB13 10 Main relay -J271-
Engine control unit -J623- (only for vehicles with a petrol engine, not 2.5 l engines)
SB14 30 Engine control unit -J623- (only for vehicles with diesel engine)
SB14 25 Engine control unit -J623- (only for vehicles with a petrol engine, not for 2.5 l engines)
SB14 15 Engine control unit -J623- (only for vehicles with 2.5 l petrol engine)
SB15 5 Data bus diagnostic interface -J533-
SB16 10 Charge pressure control solenoid valve -N75- 
Exhaust gas recirculation cooler changeover valve -N345-
Air mass meter -G70- (only for vehicles with diesel engine)
SB16 10 Additional coolant pump relay -J496-
Coolant solenoid valve -N492-
Coolant circulation pump -V50- (only for vehicles with 2.5 l petrol engine)
SB17 20 Fuel pressure regulating valve -N276- (only for vehicles with a petrol engine, except for 2.5 l engines)
SB17 10 Fuel metering valve -N290- (only for vehicles with 2.5 l petrol engine)
SB18 10 Lambda probe heater -Z19- (only for vehicles with diesel engine)
SB18 25 Fuel pressure regulating valve -J538- (only for vehicles with petrol engine)
SB19 30 Information electronics control unit 1 -J794-
Radio -R-
Voltage stabilizer -J532-
Digital sound system control unit -J525-
SB20 5 Clutch pedal position sender -G476-
SB21 30 Reducing agent heating control unit -J891-
SB22 30 Wiper motor control unit -J400-
SB23 10 Fuel pump relay -J17-
Radiator fan control unit -J293-
Low heat output relay -J359-
High heat output relay -J360-
Exhaust gas recirculation cooler pump -V400- (only for vehicles with diesel engine)
SB23 10 Relay for additional coolant pump -J496-
Radiator fan control unit -J293- 
Engine power supply relay -J757-
Charge pressure control solenoid valve -N75-
Absorber solenoid valve 1 -N80-
Camshaft timing valve 1 -N205-
Turbocharger bypass valve -N249 -
Intake manifold flap valve -N316- 
Oil pressure regulating valve -N428- (only for vehicles with a petrol engine, except for 2.5l engines)
SB23 10 Radiator fan control unit -J293-
Engine power supply relay -J757-
Exhaust gas flap block -J883-
Charge pressure control solenoid valve -N75-
Canister solenoid valve 1 -N80-
Turbocharger bypass valve -N249-
Intake manifold flap valve -N316- (except cars with 2.5 l petrol engine)
SB24 20 Fuel pressure regulating valve -N276-
Fuel metering valve -N290- (only for vehicles with diesel engine)
SB24 20 Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292- (only for vehicles with petrol engine, except 2.5 l engines )
SB24 10 Camshaft timing valve 1 -N205-
Exhaust camshaft timing valve 1 -N318-
Oil pressure regulating valve -N428- (except for vehicles with 2.5 l petrol engine)
SB25 30 Driver door control unit -J386- 
Rear left door control unit -J388-
SB26 30 Front passenger door control unit -J387- 
Rear right door control unit -J389-
SB27 50 Terminal 15 supply relay -J329-
Fuse supply: -SC9- bis -SC16-, -SC25-, -SC26-, -SC27-
SB27 40 Terminal 15 supply relay -J329-
Fuse supply: -SC9- bis -SC16-, -SC25-, -SC26-, -SC27- from November 2014
SB28 50 Glow plug control unit -J179- Glow plug
1 -Q10- Glow plug
2 -Q11- Glow plug
3 -Q12- Glow plug
4 -Q13- (only for vehicles with diesel engine)
SB28 30 Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Ignition coil 5 with output stage -N323- (only for vehicles with petrol engine 2.5 l)
SB29 30 Thermal fuse 1 for driver's seat adjustment mechanism -S44- 
Thermal fuse 1 for front passenger seat adjustment mechanism -S46-
SB30 40 ABS control unit -J104- (MK60 ESP pump)
Relay
A1 Relay for voltage supply for engine electronics -J757- (only for vehicles with diesel engines)
Jumper, glow plug control unit -J179- (only for vehicles with diesel engines)
A2 Main relay -J271- (only for vehicles with diesel engines)
Terminal 30 voltage supply relay -J317- (only for vehicles with diesel engines)
Relay under the switching block
It is only visible if the breakout box is removed.
Description
1 Relay box under the switch box in the engine compartment on the left;
2 Glow plug control unit -J179-.
Panel A - It is located in the junction box. Various designs of elements are possible.

Photo

Type 1

Type 2
А Description
SA1 200 Generator -C-
SA2 80 Power steering control unit -J500-
SA3 fifty Fuse supply: -SC40-, -SC41-, -SC42-
Not used (2)
SA4 80
60 (1.2)
High heat output relay -J360-
Radiator fan control unit -J293- (1.2)
SA5 80 Socket relay -J807- Fuse supply: -SC7-, -SC8-, -SC20- to -SC24-, -SC43- to -SC53-, -SC54-, -SC55-, -SC56-, -SC57-, -SC58- / Not used (2)
SA5 80 Fuse supply: from -SC28- to -SC33- (only for vehicles without start / stop system)
SA6 40
70 (1.2)
Low heat output relay -J359-
High heat output relay -J360- (1)
Not used (2)
SA7 60 Radiator fan control unit -J293-
Fuse cl. 30 trailer -S77- (1,2)
SA8 60
40 (1.2)
Radiator fan control unit -J293-
Low heat output relay -J359- (1)
Interference suppression capacitor -C24- (2)
SA7 60 Radiator fan control unit -J293-
SA7 60 Radiator fan control unit -J293-
  • 1 - vehicles with a battery in the engine compartment, from November 2012
  • 2 - vehicles with a battery in the luggage compartment, from May 2013
Trunk fuse box, right
А Description
SD1 175 Junction box power supply
SD2 50 Fuse supply: -SC40-, -SC41-, -SC42-
SD3 80 Fuse supply: from -SC28- to -SC33- (only for vehicles without start / stop system)
SD3 80 Socket relay -J807- Fuse supply: -SC7-, -SC8-, from -SC20- to -SC24-, from -SC43- to -SC53-, -SC54-, -SC55-, -SC56-, -SC57-, -SC58-
Related materials
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