The Audi Q8 , a mid-size luxury crossover SUV , has been available from 2018 to the present . Known for its bold design, advanced technology, and impressive performance, the Q8 combines the practicality of an SUV with the elegance and sportiness expected from Audi’s flagship models.
In this article, you will find detailed fuse box diagrams for Audi Q8 models produced in 2018, 2019, 2020, 2021, 2022, 2023, 2024 and 2025 . These diagrams offer essential insights into the vehicle’s electrical systems, helping owners and technicians understand the assignment of each fuse (fuse layout). This information is indispensable for diagnosing electrical issues, performing routine maintenance, or addressing necessary repairs.
This guide serves as a practical resource for understanding the electrical system of the Audi Q8, ensuring that owners have the knowledge needed to maintain the functionality, reliability, and performance of this luxurious crossover.
In the cabin, there are two fuse blocks – on the left front side of the cockpit and in the driver’s footwell.
It is located under the cover on the left side of the luggage compartment.
Assignment of the fuses on the left side of the dashboard
Fuse Data
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№ Description A2 Audi phone box, roof antenna A3 2019: Climate control system, fragrance system, ionizer; A4 Head-up display A5 Audi music interface, USB sockets A7 Steering column lock A8 Upper/lower display A9 Instrument cluster A10 CD/DVD player A11 Light switch, switch panels A12 Steering column electronics A13 Volume control A14 MMI Infotainment system control module A15 Steering column adjustment A16 Steering wheel heating
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Driver’s footwell
Assignment of the fuses in the driver’s footwell (Panel A)
Fuse Data
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No. Description A1 2019: Not Used; A2 2019-2021: Engine components A3 2019-2021: Engine components A4 2019-2021: Engine components A5 Brake light sensor A6 2019-2021: Engine components A7 2019-2021: Engine components A8 2019-2021: Engine components A9 2019-2021: Engine components A10 Oil pressure sensor, oil temperature sensor A11 2019: Engine Start; A12 2019-2021: Engine components A13 Engine cooling A14 Engine control module A15 2019-2021: Engine sensors A16 Fuel pump
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Assignment of the fuses in the driver’s footwell (Panel B)
Fuse Data
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No. Description B1 Ignition coils B3 2019: Not Used; B4 2019: Not Used; B5 Engine mount B6 Windshield washer system control module B7 Instrument panel B8 Climate control system fresh air blower B9 Driver assist systems control module B10 Emergency call system B11 2019-2021: Engine start
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Assignment of the fuses in the driver’s footwell (Panel C)
Fuse Data
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No. Description C1 Front seat heating C2 Windshield wipers C3 Left headlight electronics C4 Panoramic glass roof C5 Left front door control module C6 Sockets C7 Right rear door control module C9 Right headlight electronics C10 Windshield washer system/headlight washer system C11 Left rear door control module C12 Parking heater
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Assignment of the fuses in the driver’s footwell (Panel D)
Fuse Data
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No. Description D1 2019-2020: Seat ventilation, seat electronics, rearview mirror, rear climate control panel, diagnostic connector D2 2019: Climate control module, gateway control module; D3 Sound actuator/exhaust sound tuning D4 2019: Transmission heating valve, Transmission fluid cooling valve; D5 2019-2021: Engine start D8 2019: Night vision assist; D9 2019-2020: Adaptive cruise assist, front radar D10 2019: Not Used; D11 Intersection assistant, driver assist systems D13 Left headlight D15 2021-2022: USB input
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Assignment of the fuses in the driver’s footwell (Panel E)
Fuse Data
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No. Description E1 Anti-theft alarm system E2 Engine control module E3 Front seat electronics, lumbar support E4 Automatic transmission selector lever E5 Horn E6 Parking brake E7 Gateway control module (diagnosis) E8 2019: Interior headliner lights; E9 2019: Not Used; E10 Airbag control module E11 2019: Electronic Stabilization Control (ESC); E12 Diagnostic connector, light/rain sensor E13 Climate control system E14 Right front door control module E15 2019: Climate control system, body electronics; E16 2022: Brake system pressure reservoir
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Assignment of the fuses in the trunk (Panel A)
Fuse Data
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No. Description A1 2019: Not Used; A5 Air suspension/damping A6 Automatic transmission A7 2019: Rear seat heating; A9 Central locking, left tail light A10 Front belt tensioner on driver’s side A11 2019: Central locking, rear blind; A12 Luggage compartment lid control module
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Assignment of the fuses in the trunk (Panel B)
Fuse Data
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No. Description B1 Rear climate control system blower B2 Sound-amplifier B3 Exhaust treatment, sound actuator B4 Rear climate control system control panel B5 Right trailer hitch light B6 Trailer hitch positioning motor B7 Trailer hitch release B8 Left trailer hitch light B9 Trailer hitch socket B10 All wheel drive sport differential B11 Exhaust treatment B12 Driver’s side rear safety belt tensioner
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Assignment of the fuses in the trunk (Panel C)
Fuse Data
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No. Description C1 Driver assist systems control module C2 Audi phone box C3 2019: Right front lumbar support; C4 Side assist C6 Tire pressure monitoring system C7 2021-2022: Exterior antenna C8 2019: Fuel tank monitoring; C10 2019: TV tuner; C11 Convenience access and start authorization control module C12 Garage door opener C13 Rearview camera, peripheral cameras C14 2019: Central locking, tail lights; C15 Passenger’s side rear safety belt tensioner C16 Front belt tensioner on front passenger’s side
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Assignment of the fuses in the trunk (Panel D)
Fuse Data
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No. Description D1 2020-2022: Active roll stabilization D2 2022: High-voltage battery D3 2022: High-voltage battery coolant pump D4 2022: Power electronics control module D5 2019: Brake system D6 Voltage converter D7 2022: Engine start D8 2022: Climate control system compressor D9 Auxiliary battery control module D10 2022: High-voltage battery D11 2022: Charging system D12 2022: Auxiliary heating and air conditioning radio receiver D14 2022: Thermal management, coolant pumps D15 2020-2022: Thermomanagement control module
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Assignment of the fuses in the trunk (Panel E)
Fuse Data
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No. Description E7 2019: Front seat heating; E9 2019: Exhaust treatment; E10 2022: Rear seat heating, rear climate control system controls E12 2019: Exhaust treatment;
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