Audi A4/S4 (B9/8W; 2017-2019…) fuses

Fuse box diagram (location and assignment of electric fuses) for Audi A4/S4 (B9/8W; 2017, 2018-…)

Fuse Box Diagram: Audi A4/S4 (B9/8W; 2017-2019…)

2017
2018

Fuse Box Location

Driver’s/front passenger’s footwell

Left-hand drive vehicles: The fuse box is located under the footrest.
Right-hand drive vehicles: Behind the cover under the glove box.The location of the fuses in the passenger compartment: Audi A4/S4 (B9/8W; 2017-2019...)

Driver’s side cockpit

The location of the fuses in the passenger compartment: Audi A4/S4 (B9/8W; 2017-2019...)

Luggage compartment

The fuse box is located in the left side of the trunk behind the trim panelThe location of the fuses in the trunk: Audi A4/S4 (B9/8W; 2017-2019...)

Fuse box diagrams 2017

Driver’s/front passenger’s footwell (LHD)

Fuse box diagram (Driver’s/front passenger’s footwell): Audi A4/S4 (B9/8W; 2017)

Front passenger‘s footwell (RHD)

Fuse box diagram (Front passenger‘s footwell (RHD)): Audi A4/S4 (B9/8W; 2017)

Assignment of the fuses in the Passenger compartment (footwell) (2017)
NumberElectric equipment
Brown fuse panel A
1
2Mass airflow sensor, camshaft adjustment
3Exhaust doors, fuel injectors, radiator inlet
4Vacuum pump, hot water pump, particulate sensor, biodiesel sensor
5Brake light sensor
6Engine valves
7Heated oxygen sensor, mass airflow sensor
8Water pump, high pressure pump, high pressure regulator valve
9Hot water pump
10Oil pressure sensor, oil temperature sensor
11Clutch pedal position sensor
12Engine valves
13Radiator fan
14Fuel injectors
15Ignition coils
16Fuel pump
Red fuse panel B
1Anti-theft alarm system
2Engine control module
3Lumbar support
4Automatic transmission selector mechanism
5Horn
6Electromechan ical park ing brake
7Gateway control module
8Interior headl iner lights
9
10Airtoag control module
11Electronic Stabilization Control (ESC
12Diagnostic connector, light/rain sensor
13Climate control system
14Right front door control module
15A/C compressor
Black fuse panel C
1Front seat heating
2Windshield wipers
3Left head light electronics
4Panorama glass roof/ sliding/tilting sunroof
5Left front door control module
6Sockets
7Right rear door control module
8
9Right headlight electronics
10Windshield washer system/headlight washer system
11Left rear door control module
Black fuse panel D
1Seat ventilation, rearv iew mirror, rear climate control system controls
2Gateway, climate control system
3Sound actuator/exhaust sound tuning
4Clutch pedal position sensor
5Engine start
6
7
8Homelink
9Adaptive cruise control
10
11Video camera
12Matrix LED headlight/right LED headlight
13Matrix LED headlight/left LED headlight
14Rear window wiper
Red fuse panel E
1Ignition coils
2Natural gas tank valves
3
4
5Engine mount
6Automat ic transmission
7Instrument panel
8Climate control system (blower)
9
10Dynamic steering
11Engine start

Driver’s side cockpit

Fuse box diagram (Driver’s side cockpit): Audi A4/S4 (B9/8W; 2017)

Assignment of the fuses in the Driver’s side cockpit (2017)
NumberElectric equipment
1
2Telephone
3
4Head-up display
5Audi music interface
6Front climate control system controls
7Steering column lock
8Infotainment syst em display
9Instrument cluster
10Infotainment unit
11Light switch
12Steering column electronics
13
14Infotainment system
15
16Steering wheel heating

Left luggage compartment

Fuse box diagram (Left luggage compartment): Audi A4/S4 (B9/8W; 2017)

Assignment of the fuses in the Left luggage compartment (2017)
NumberElectric equipment
Black fuse panel A
1
2Windshield defroster
3Windshield defroster
4
5Suspension control
6Automatic transmission
7Rear window defogger
8Rear seat heating
9Tail lights
10Left safety belt tensioner
11Central locking
12Electric luggage compartment lid
Red fuse panel B
-Not assigned
Brown fuse panel C
1
2Telephone
3Lumbar support
4Audi side assist
5
6
7
8
9
10
11
12Homelink
13Rearview camera, peripheral cameras
14Right tail lights
15
16Right safety belt tensioner
Red fuse panel E
1
2Sound-amplifier
3AdBlue
4
5Trailer hitch (right light)
6
7Trailer hitch
8Trailer hitch (left light)
9Trailer hitch (socket)
10Sport differential
11Ad Blue

Fuse box diagrams 2018

Driver’s/front passenger’s footwell (LHD)

Fuse box diagram (Driver’s/front passenger’s footwell): Audi A4/S4 (B9/8W; 2018)

Front passenger‘s footwell (RHD)

Fuse box diagram (Front passenger‘s footwell (RHD)): Audi A4/S4 (B9/8W; 2018)

Assignment of the fuses in the Passenger compartment (footwell) (2018)
NumberElectric equipment
Brown fuse panel A
1
2Mass airflow sensor, camshaft adjustment, charge air cooler pump
3Exhaust doors, fuel injectors, radiator inlet
4Vacuum pump, hot water pump, particulate sensor, biodiesel sensor
5Brake light sensor
6Engine valves, camshaft adjustment
7Heated oxygen sensor, mass airflow sensor
8Water pump, high pressure pump, high pressure regulator valve
9Hot water pump
10Oil pressure sensor, oil temperature sensor
11Clutch pedal position sensor
12Engine valves
13Radiator fan
14Fuel injectors
15Ignition coils
16Fuel pump
Red fuse panel B
1Anti-theft alarm system
2Engine control module
3Lumbar support
4Automatic transmission selector mechanism
5Horn
6Electromechanical park ing brake
7Gateway control module
8Interior headl iner lights
9
10Airbag control module
11Electronic Stabilization Control (ESC)
12Diagnostic connector, light/rain sensor
13Climate control system
14Right front door control module
15A/C compressor
Black fuse panel C
1Front seat heating
2Windshield wipers
3Lett head light electronics
4Panorama glass roof/ sliding/tilting sunroof
5Lett front door control module
6Sockets
7Right rear door control module
8All wheel drive
9Right headlight electronics
10Windshield washer system/headlight washer system
11Left rear door control module
Black fuse panel D
1Seat ventilation, rearv iew mirror, rear climate control system controls
2Gateway, climate control system
3Sound actuator/exhaust sound tuning
4Clutch pedal position sensor
5Engine start
6
7Rear USB charg ing port
8Homelink
9Adaptive cruise control
10
11Video camera
12Matrix LED headlight/right LED headlight
13Matrix LED headlight/left LED headlight
14Rear window wiper
Red fuse panel E
1Ignition coils
2Natural gas tank valves
3
4
5Engine mount
6Automatic transmission
7Instrument panel
8Climate control system (blower)
9
10Dynamic steering
11Engine start

Driver’s side cockpit

Fuse box diagram (Driver’s side cockpit): Audi A4/S4 (B9/8W; 2018)

 

Assignment of the fuses in the Driver’s side cockpit (2018)
NumberElectric equipment
1
2Telephone
3
4Head-up display
5Audi music interface, USB charging port
6Front climate control system controls
7Steering column lock
8Infotainment system display
9Instrument cluster
10Infotainment unit
11Light switch
12Steering column electronics
13
14Infotainment system
15
16Steering wheel heating

Left luggage compartment

Fuse box diagram (Left luggage compartment): Audi A4/S4 (B9/8W; 2018)

Assignment of the fuses in the Left luggage compartment (2018)
NumberElectric equipment
Black fuse panel A
1
2Windshield defroster
3Windshield defroster
4
5Suspension control
6Automatic transmission
7Rear window defogger
8Rear seat heating
9Tail lights
10Left safety belt tensioner
11Central locking system
12Electric luggage compartment lid
Red fuse panel B
Not assigned
Brown fuse panel C
1
2Telephone
3Lumbar support
4Audi side assist
5
6
7
8Smart module (tank)
9
10
1112 Volt battery
12Homelink
13Rearview camera, peripheral cameras
14Right tail lights
15
16Right safety belt tensioner
Red fuse panel E
1
2Sound-amplifier
3AdBlue heating
4
5Trailer hitch (right light)
6
7Trailer hitch
8Trailer hitch (left light)
9Trailer hitch (socket)
10Sport differential
11Ad Blue
Audi A4/S4 (B9/8W; 2017-2019…) fuses May 9, 2019 admin