Audi A8 / S8 (D5/4N; 2018-2020..) fuses

 

Fuse Layout Audi A8 2018-2020…

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Fuse Box Location

Passenger Compartment

In the cabin, there are two fuse blocks:

The first is on the left front side of the cockpit.

And the second is behind the lid in the left footwell.

Luggage Compartment

It is located on the left side of the trunk behind the side trim panel.

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Fuse Box Diagrams

Cockpit fuse panel

Assignment of the fuses on the left side of the dashboard (2018-2020)

№	Description
A1	2018-2019: Climate control system; 2020: Climate control system, interior air sensor
A2	Phone, roof antenna
A3	2018-2019: Climate control system, fragrance system, ionizer; 2020: Climate control system, fragrance system, particulate matter sensor
A4	Head-up display
A5	2018-2019: Audi music interface; 2020: Audi music interface, USB sockets
A7	Steering column lock
A8	Front MMI display
A9	Instrument cluster
A10	Volume control
A11	Light switch, switch panels
A12	Steering column electronics
A14	MMI Infotainment system control module
A15	Steering column adjustment
A16	Steering wheel heating

Footwell fuse panel

 

Assignment of the fuses in the footwell (2018-2020)

№	Description
	Fuse panel A (brown)
A1	Engine ignition coils
A2	Engine start (Electric motor coupling)
A3	Windshield wiper control module
A4	Left headlight electronics
A5	Climate control system blower
A6	Instrument panel
A7	Windshield wipers
A9	Panoramic glass roof
	Fuse panel B (black)
B1	Engine mount
B2	Left rear door control module
B3	Windshield washer system/headlight washer system
B4	Right headlight electronics
B5	Front seat heating
B6	Right rear door control module
B7	Sockets
B8	Left front door control module
B9	2018-2019: Not Used; 2020: Parking heater
	Fuse panel C (red)
C1	Anti-theft alarm system
C2	Engine control module
C5	Horn
C6	Parking brake
C7	Gateway control module (diagnosis)
C8	Interior headliner lights
C9	Driver assist systems control module
C10	Airbag control module
C11	2018-2019: Electronic Stabilization Control (ESC); 2020: Electronic Stabilization Control (ESC), Anti-Lock Braking System (ABS)
C12	2018-2019: Diagnostic connector, light/rain sensor; 2020: Rear climate control unit, diagnostic connector, light/rain sensor
C13	Climate control system
C14	Right front door control module
C15	Climate control system, body electronics
C16	2018-2019: Not Used; 2020: Brake system
	Fuse panel D (black)
D2	Engine components
D3	Engine components
D4	Engine components
D5	Brake light sensor
D6	Engine components
D7	Engine components
D8	Engine components
D9	Engine components
D10	Oil pressure sensor, oil temperature sensor
D11	Engine start
D12	Engine components
D13	Radiator fan
D14	Engine control module
D15	Engine sensors
D16	Fuel pump

Luggage Compartment Fuse Box

 

Assignment of the fuses in the trunk (2018-2020)

№	Description
	Fuse panel A (black)
A1	2018-2019: Not Used; 2020: Thermal management
A5	Air suspension
A6	Automatic transmission
A7	Right rear seat adjustment
A8	Rear seat heating
A9	Central locking, tail lights
A10	Front belt tensioner on driver’s side
A11	2018-2019: Central locking, rear blind; 2020: Central locking, rear blind, fuel filler door
A12	Luggage compartment lid
	Fuse panel B (red)
B1	Rear climate control system blower
B3	2018-2019: Not Used; 2020: Exhaust treatment, sound actuator
B4	Rear climate control system control panel
B5	Right trailer hitch light
B6	Trailer hitch positioning motor
B7	Trailer hitch
B8	Left trailer hitch light
B9	Trailer hitch socket
B10	Sport differential
B11	2018-2019: Not Used; 2020: Exhaust treatment
	Fuse panel C (brown)
C1	Driver assist systems control module
C2	Rear Audi phone box
C3	Rear seat adjustment
C4	Side assist
C5	Rear Seat Entertainment (Audi tablet)
C6	Tire pressure monitoring system
C7	Emergency call system
C8	2018-2019: Fuel tank monitoring; 2020: Parking heater radio receiver, fuel tank monitoring
C9	Automatic transmission selector lever
C10	2018-2019: TV tuner; 2020: TV tuner, data exchange control module
C11	Vehicle opening/start (NFC)
C12	Garage door opener
C13	Rearview camera, peripheral cameras
C14	Central locking, tail lights
C15	Left rear seat adjustment
C16	Front belt tensioner on front passenger’s side
	Fuse panel D (black)
D1	2018-2019: Seat ventilation, seat heating, rearview mirror, climate control system, rear climate control system controls; 2020: Seat ventilation, rear seat heating, rear-view mirror, refrigerator, diagnostic connector
D2	Gateway control module (communication)
D3	Sound actuator
D4	Transmission heating valve
D5	2018-2019: Engine start; 2020: Engine start, electric motor
D7	2018-2019: Not Used; 2020: Active accelerator pedal
D8	2018-2019: Night vision assist; 2020: Night vision assist, active suspension
D9	Adaptive cruise assist
D11	Intersection assistant, driver assist systems
D12	2018-2019: Not Used; 2020: Exterior sound
D14	Right headlight
D15	Left headlight
	Fuse panel E (red)
E1	2018-2019: Not Used; 2020: Active suspension
E2	2018-2019: Not Used; 2020: Service disconnect switch
E3	Refrigerator
E4	2018-2019: Not Used; 2020: Electric motor
E5	Brake system
E6	2018-2019: Not Used; 2020: High-voltage battery water pump
E7	2018-2019: Not Used; 2020: Interior climate control
E8	2018-2019: Not Used; 2020: A/C compressor
E9	Auxiliary battery control module
E10	2018-2019: Not Used; 2020: High-voltage battery
E11	2018-2019: Not Used; 2020: High-voltage battery
E14	2018-2019: Not Used; 2020: Thermal management
E15	2018-2019: Not Used; 2020: Thermal management
	Fuse panel F (white)
F1	Rear center armrest heating
F2	Rear sliding sunroof
F3	CD/DVD player
F5	AC socket
F6	Passenger’s side rear safety belt tensioner
F7	Front center armrest heating
F8	Rear footrest heating
F11	Rear Seat Remote
F12	Driver’s side rear safety belt tensioner