Fuses and relay Audi A8 (D4)

For the Audi A8 (D4) (4H) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 model year.

Cigarette lighter fuse – (fuse box in luggage compartment, fuse №47/20A and №48/20A)

Fuse box in passenger compartment.

fuse box location.

Driver side of the cockpit: fuse panel cover.

fuse box diagram.

legend.

FuseAmpsCircuits protected
135ALighting switch
145AEntry and start authorisation switch
157,5ADoor control unit, rear left
or not used
165AHead-up display control unit
1715AHorn relay
Horns
187,5AControl unit, roof electronics
19Not used
205AControl unit, steering column electronics
(10A also used)
215AController area network (CAN)
or not used
225ASteering column lock control unit
237,5ADriver’s door control unit
or not used
2410ARain and light sensor
Diagnostic connector (16)
255AAdditional heater remote control receiver
2625ASteering column adjustment control unit
Steering column adjustment, vertical
Steering column adjustment, horizontal
2720APower supply control unit
2815ABrake servo relay
Brake vacuum pump
2930APower supply control unit
3030AWiper control unit
3130APower supply control unit
3220ASunroof control unit
Sunroof motor
3330ADriver’s door control unit
Driver’s side power window
3415APassenger’s seat control unit
(7.5A also used)
3520ASunroof control unit
Sunroof motor
3635AActive steering control unit
3730APower supply control unit
3835APower supply control unit
3930ADoor control unit, rear left
Rear left power window
4040ASunroof roller blind control unit
Sunroof roller blind


Front passenger side cockpit: fuse panel with plastic bracket.

legend.

FuseAmpsCircuits protected
135AAlarm sensor
Alarm horn
1415AAutomatic transmission control unit
1540AFresh-air blower control unit
1635AMotronic power supply relay
Terminal 30 voltage supply relay
Power supply relay
1730AAdditional heater control unit
185AEngine control unit
Engine control unit 2
197,5AFront passenger’s door control unit
or not used
2030AFront passenger’s door control unit
Front passenger’s power window
2110AABS control unit
2225AABS control unit
2330ADoor control unit, rear right
Rear right power window
2415APassenger’s seat control unit
(7.5A also used)
25Not used
26Not used
27Not used
28Not used
2910ASpecial equipment
(15A also used)
3010ASpecial equipment
(15A also used)
3110ASpecial equipment
325ASpecial equipment
(15A also used)
3310ASpecial equipment
3415ASpecial equipment
3510ASpecial equipment
3610ASpecial equipment

 


Fuse and relay box in passenger compartment.

fuse and relaybox diagram.

Fuse 13 (15.0 A) – Driver’s seat adjustment
Relay R6 – Horn relay or Brake servo relay or not used
Relay R7 – Emergency off relay or not used


Fuse box in luggage compartment.

fuse box diagram.

legend.

FuseAmpsCircuits protected
15ATCS/ESP button
Headlight range control unit
Power supply control unit
Diagnostic connector (16)
25AData bus diagnostic interface
35AAdaptive suspension control unit
45AParking assistance control unit
55AControl unit, steering column electronics
65AControl unit
75AAirbag control unit
Passenger’s side airbag deactivation light
Seat occupied recognition control unit
85AGarage door operation control unit
Night vision system control unit
Control unit for the air quality improvement system
Heated washer jets
4WD control unit
95AHandbrake control unit
105AAuto-hold button
Trailer detection control unit
Cooler box
Heated seat control unit
Automatic anti-dazzle rear-view mirror
115AActive steering control unit
125ASelector lever control unit
135ALane change assist control unit
145AEngine control unit
1540AStarter motor relay
Starter motor, secondary relay
165AHeadlight range control unit
Power output control unit for the left headlight
(10A also used)
1725ASeat belt pretensioner control unit
1825ASeat belt pretensioner control unit
195AEngine control unit
or not used
207,5AVoltage regulator(s)
217,5ACamera control unit
2210APower output control unit for the right headlight
235AABS control unit
Or
ABS control unit
Air-conditioning compressor
247,5ACrankcase breather heater
Emergency off relay
Or
Voltage regulator(s)
Engine mount control unit
Control unit for sound transmitted through the vehicle body structure
or not used
2510AAdaptive cruise control unit
Or
Adaptive cruise control unit
Battery
265AAutomatic transmission control unit
Or
Automatic transmission control unit
Controller area network (CAN)
275AAir quality sensor
Refrigerant pressure and temperature sensor
Humidity sender
285ASpecial equipment
295AElectric parking brake
305AControl unit
317,5ADoor control unit, rear right
or not used
325AFuel tank leakage control unit
Fuel tank pressure sensor
Telephone
or not used
3315AClimatronic control unit
3410AAir-conditioning control unit
355AData bus diagnostic interface
3615ACooler box
375AConnector
385ATelephone
Aerial selection control unit
Chip card reader
or not used
3915AEngine mount control unit
4010ASelector lever control unit
4110AComfort system control unit
4220AComfort system control unit
4325AFuel pump control unit
Fuel pump relay
4430AHandbrake control unit
45Not used
4620A12V socket
4720ARear cigarette lighter
Additional 12V sockets
4820ACigarette lighter
DC-AC converter with socket, 12V – 230V
4915AAdaptive suspension control unit
5015ADC-AC converter with socket, 12V – 230V
5130AHandbrake control unit
5225AHeated seat control unit
Air-conditioning control unit
Heated rear seat(s) switch
5320AComfort system control unit
5420AFresh-air blower control unit
Blower
5520AComfort system control unit
5630AControl unit
575ARear seat adjustment
Remote control for seat operation
5835ACooling fan relay
or not used
597,5ASeat adjustment
6025ATrailer detection control unit
Trailer connector socket
(30A also used)
6120ATrailer detection control unit
Trailer connector socket
(25A also used)
6230ASeat adjustment
6330ASeat adjustment
6420ATrailer detection control unit
Trailer connector socket
(25A also used)
6515ATrailer detection control unit
Trailer connector socket
667,5ASeat adjustment
6715ABattery
or not used
68Not used
6930ADigital sound package control unit
Voltage regulator(s)
Radio
7030ADigital sound package control unit
7110AMultimedia control unit
Voltage regulator(s)
Information display control unit
Information display
725ATyre pressure monitor control unit
or not used
735ARear-view camera control unit
Automatic anti-dazzle rear-view mirror
or not used
745ADVD
755ATV tuner
767,5AInformation display control unit
Multimedia control unit
775AControl panel control unit
Analogue clock
785AVehicle information control unit
797,5ARadio
805ATelephone
Aerial selection control unit
Chip card reader
Rear-view camera control unit
or not used
81Not used
8280A(110A also used)
No information is available
83110ANo information is available
8440AHeated rear windscreen
8540ALevelling system
8640AEngine Start and Stop system switch
8715AFront passenger’s seat adjustment
R1Adaptive suspension compressor relay
R2Heated rear windscreen relay
R3Automatic anti-dazzle rear-view mirror
Or
Automatic anti-dazzle rear-view mirror
Cooling fan relay
R4Fuel pump relay
R5Starter motor relay
Starter motor, secondary relay
R6Terminal 15 voltage supply relay
R7Power socket relay

 


Main fuse box in luggage compartment.

Fuse 1 (175.0 A) – Main fuse
Fuse 2 (110.0 A) – Main fuse
Fuse 3 (40.0 A) – Main fuse (80A also used) (150A also used)
A – Battery isolation/igniter


Main fuse box in luggage compartment.

Fuse 1 (30.0 A) – Reductant heater

Fuse 2 (10.0 A) -Reductant metering system

Relay R1 – Reductant metering system relay


Fuse box in engine compartment.

fuse box diagram.

legend.

FuseAmpsCircuits protected
15AMass airflow meter
Mass airflow meter 2
2Not used
3Not used
415AEngine control unit
Engine control unit 2
55ACooling fan control unit
Cooling fan control unit 2
Fuel pump control unit
Cooling fan
Cooling fan 2
Fuel pump relay
65ABrake light switch
710AGlow plug control unit
Left electro-hydraulic engine mounting solenoid
Gearbox mounting solenoids
Gearbox oil cooling valve
85AOil level and temperature sensor
910AGearbox mounting solenoids
Fuel pressure control solenoid
Fuel metering solenoid
1015AOxygen sensors
1115AGlow plug control unit
Right electro-hydraulic engine mounting solenoid
Exhaust gas cooler solenoid
Oil pressure control valve
Coolant system bypass circuit valve
Connector
Gearbox mounting solenoids
1215AExhaust gas recirculation coolant pump
Coolant circulation pump
Or
Exhaust gas recirculation coolant pump
1380AGlow plug
1450AGlow plug
or not used
R1Not used
R2Not used
R3Not used
R4No information is available
R5No information is available
R6No information is available
R7No information is available
R8Glow plug control unit
R9Glow plug control unit
or not used

 


Additional fuses in engine compartment.

Fuse 1 (40.0 A) – Cooling fan
(60A also used)

Fuse 2 (40.0 A) – Cooling fan
(60A also used)