Audi A7 (4K8) | 2018-2024 | Fuse Box Diagrams and Locations

The second-generation Audi A7 and S7 (chassis code 4K8), a sleek and luxurious sportback, has been available from 2018 to the present. Combining cutting-edge technology, striking design, and dynamic performance, the second-generation A7 and its high-performance S7 variant continue to redefine the luxury sportback segment.

In this article, you will find detailed fuse box diagrams for Audi A7 and S7 models produced in 2018, 2019, 2020, 2021 and 2024. These diagrams provide valuable insights into the vehicle’s electrical systems, helping owners and technicians understand the assignment of each fuse (fuse layout). This information is critical 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 second-generation Audi A7 and S7, ensuring that owners have the knowledge and tools required to maintain the functionality, reliability, and performance of these luxurious and innovative sportbacks.

Fuse Box Location

Passenger Compartment

In the cabin, there are two fuse blocks.

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

The location of the fuses in the passenger compartment: Audi A7 / S7 (2018, 2019, 2020...)

And the second is in the driver’s footrest on left-hand drive vehicles, or behind the lid on front passenger footwell on right-hand drive vehicles.

The location of the fuses in the passenger compartment: Audi A7 / S7 (2018, 2019, 2020...)

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Luggage Compartment

The fuses are under the lid on the trunk floor.

The location of the fuses in the trunk: Audi A7 / S7 (2018, 2019, 2020...)

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Fuse Box Diagrams

Cockpit fuse panel

Cockpit fuse panel diagram: Audi A7 / S7 (2018, 2019, 2020...)

Assignment of the fuses on the left side of the dashboard

№Description
Fuse panel A (black)
A2Steering column adjustment
A3CD/DVD player
A4Steering column electronics
A5Light switch, switch panels
A6Volume control
A7Instrument cluster
A8Front MMI display
A9Steering wheel heating
Fuse panel B (brown)
B2MMI Infotainment system control module
B3Audi music interface, USB connection
B4Head-up display
B5Climate control system, fragrance system, ionizer
B9Steering column lock

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Footwell fuse panel

*The fuse assignment “C” and “D” is in the opposite order on right-hand drive vehicles.

Footwell fuse panel diagram: Audi A7 / S7 (2018, 2019, 2020...)

Assignment of the fuses in the footwell

№Description
Fuse panel A (black)
A1from 2021: Catalytic converter heating
A2Engine components
A3Engine components
A4Engine components
A5Brake light sensor
A6Engine components
A7Engine components
A8Engine components
A92018-2020: Engine components
from 2021: Engine components, 48 V water pump, 48 V drivetrain generator
A10Oil pressure sensor, oil temperature sensor
A112018-2020: Engine start
from 2021: Engine components, 48 V water pump, 48 V drivetrain generator, 12 V drivetrain generator
A12Engine components
A13Radiator fan
A142018-2020: Engine control module
from 2021: Engine control module, fuel injectors
A152018-2020: Engine sensors
from 2021: Engine sensors, ignition coils, oxygen sensors
A16Fuel pump
Fuse panel B (red)
B1Anti-theft alarm system
B2Engine control module
B3Left front lumbar support
B5Horn
B6Parking brake
B7Gateway control module (diagnosis)
B82018-2020: Interior headliner lights
from 2021: Roof electronics control module
B9Driver assist systems control module
B10Airbag control module
B112018-2019: Electronic Stabilization Control (ESC);
from 2020: Electronic Stabilization Control (ESC), Anti-Lock Braking System (ABS)
B12Diagnostic connector, light/rain sensor
B13Climate control system
B14Right front door control module
B15Climate control system, body electronics
B162018-2020: Auxiliary battery control module
from 2021: Auxiliary battery control module, brake system pressure reservoir
Fuse panel C (red)
C1Engine ignition coils
C3from 2021: High-voltage heating, compressor
C5Engine mount
C6Automatic transmission
C7Instrument panel
C8Climate control system blower
C9Windshield wiper control module
C10Dynamic steering
C11Engine start
C12from 2021: Automatic transmission fluid pump
Fuse panel D (black)
D1Front seat heating
D2Windshield wipers
D3Left headlight electronics
D4Panoramic glass roof
D5Left front door control module
D6Sockets
D7Right rear door control module
D8All-wheel drive control module (quattro)
D9Right headlight electronics
D10Windshield washer system/headlight washer system
D11Left rear door control module
D12Parking heater
Fuse panel E (brown)
E12018-2019: Seat ventilation, seat heating, rearview mirror, climate control system, rear climate control system controls;
2020: Diagnostic connector, seat ventilation, |seat heating, rearview mirror, rear climate control system controls
from 2021: Seat ventilation, seat electronics, rearview mirror, rear climate control system control panel, diagnostic connection, traffic information antenna (TMC)
E22018-2019: Climate control system;
from 2020: Vehicle electrical system control module, gateway control module
E3Sound actuator/exhaust sound tuning
E4Transmission heating valve
E5Starter
E7from 2021: Active accelerator pedal
E8Night vision assist
E9Adaptive cruise assist
E112018-2019: Intersection assistant, driver assist systems;
from 2020: Intersection assistant, driver assist systems, traffic jam pilot
E12from 2021: Exterior sound generator
E15from 2021: USB connection

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Luggage Compartment Fuse Box

Trunk fuse box diagram: Audi A7 / S7 (2018, 2019, 2020...)

Assignment of the fuses in the trunk

№Description
Fuse panel A (black)
A1from 2021: Thermal management
A3Passenger’s side rear safety belt tensioner
A4Driver’s side rear safety belt tensioner
A5Air suspension
A6Automatic transmission
A7Rear sliding sunroof, rear spoiler
A8Rear seat heating
A92018-2019: Central locking, tail lights;
from 2020: Central locking, left tail light
A10Left front safety belt tensioner
A112018-2019: Central locking, rear blind;
2020: Central locking, rear blind, fuel filler door
from 2021: Luggage compartment lid central locking, fuel filler door, luggage compartment cover
A12Luggage compartment lid
Fuse panel B (red)
B1from 2021: Suspension stabilization control module
B2from 2021: Service disconnect switch
B4from 2021: Electric drive system, power electronics
B52018-2020: Brake system
from 2021: Brake system, brake booster
B6from 2021: High-voltage battery coolant pump
B7from 2021: Auxiliary climate control
B8from 2021: Climate control system compressor
B9Auxiliary battery control module
B10from 2021: High-voltage battery
B11from 2021: High-voltage charger
B14from 2021: Thermal management, coolant pumps
B15from 2021: Thermomanagement control module
Fuse panel C (brown)
C1Driver assist systems control module
C22018-2020: Audi phone box, park assist antenna
from 2021: Audi phone box
C32018-2020: Right front lumbar support
2021: Front seat electronics, right lumbar support
from 2022: Right lumbar support
C4Side assist
C5from 2021: Rear climate control system control panel, Infotainment system control panel
C6Tire pressure monitoring system
C7Emergency call system
C82018-2019: Not Used;
from 2020: Parking heater, radio receiver, fuel tank monitoring
C9Automatic transmission selector lever
C102018-2019: TV tuner;
from 2020: TV tuner, data exchange control module
C11Vehicle opening/start (NFC)
C12Garage door opener
C13Rearview camera, peripheral cameras
C142018-2020: Central locking, tail lights
from 2021: Convenience system control module, right tail light
C16Right front safety belt tensioner
Fuse panel D (black)
D1-D16Not assigned
Fuse panel E (red)
E2from 2021: Exterior antenna
E32018-2019: Exhaust treatment;
2020: Exhaust treatment, sound actuator, AC socket
from 2021: Exhaust treatment, sound actuator
E4Rear climate control system control panel
E5Right trailer hitch light
E7Trailer hitch
E8Left trailer hitch light
E92018-2021: Trailer hitch socket
from 2022: Trailer hitch socket, high-voltage battery
E102018-2020: Sport differential
from 2021: All wheel drive control module, sport differential
E11Exhaust treatment
E12from 2021: 48 V drivetrain generator

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