Audi A5-S5 (B9-F5) (2016-2023) Fuse Box Location & Diagram

When it comes to locating the fuse boxes and accessing their diagrams in the second-generation Audi A5/S5 (B9-F5), this article aims to provide comprehensive information. Covering model years from 2016 to the present, including 2016, 2017, 2018, 2019, 2020 and facelift models 2020, 2021, 2022, and 2023, the article serves as a reliable resource. Inside the car, you will find fuse panel locations, allowing you to identify the precise spots where the fuse boxes are situated. Additionally, the article provides detailed fuse layout information, offering insights into the assignment of each fuse. Whether you need to replace a blown fuse or simply understand the electrical system of your Audi A5 or S5, this resource will guide you effectively.

Fuse Box Locations 2016-2023

Front cockpit

There are two main locations where you can find the fuse boxes in the Audi A5 and S5. The first one is situated on the front side of the cockpit, specifically on the driver’s side.

The second location varies depending on whether it is a left-hand drive or right-hand drive vehicle. For left-hand drive vehicles, you can find the second fuse box in the driver’s footrest area. However, in right-hand drive vehicles, it is located behind the lid on the front passenger footwell. These two easily accessible locations ensure that you can locate the fuse boxes without hassle in your Audi A5 or S5.

Inside the trunk

The fuse box can be found behind the trim panel on the left side of the trunk.

Fuse Box Diagrams 2016-2020

Cockpit fuse box

The table below displays the assignment of fuses on the left side of the cockpit (driver side) from 2016 to 2020 vehicle model.

No.Description
12016-2018: Empty;
2019-2020: Vehicle opening/start (NFC)
2Telephone, mobile device charger
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, switch module
12Steering column electronics
132016-2018: Empty;
2019-2020: Particulate matter sensor for climate control system
14Infotainment system
16Steering wheel heating

Footwell fuse boxes

(LHD) Left-hand drive vehicles.

(RHD) Right-hand drive vehicles.

The table below displays the assignment of fuses in the footwell from 2016 to 2020 vehicle model.

No.Description
Fuse Holder A
22016-2018: Mass airflow sensor, camshaft adjustment, charge air cooler pump;
2019-2020: Engine components
32016-2018: Exhaust doors, fuel injectors, radiator inlet;
2019-2020: Exhaust doors, fuel injectors, radiator inlet, crankcase housing heating
42016-2018: Vacuum pump, hot water pump, particulate sensor, biodiesel sensor;
2019-2020: Vacuum pump, hot water pump, NOx sensor, particulate sensor, biodiesel sensor, exhaust doors
5Brake light sensor
6Engine valves, camshaft adjustment
72016-2018: Heated oxygen sensor, mass airflow sensor;
2019-2020: Heated oxygen sensors, mass airflow sensor, water pump
82016-2018: Water pump, high pressure pump, high pressure regulator valve;
2019-2020: Water pump, high pressure pump, high pressure regulator valve, mass airflow sensor, engine components
92016-2018: Hot water pump;
2019-2020: Hot water pump, engine relay
10Oil pressure sensor, oil temperature sensor
112016-2018: Clutch pedal position sensor;
2019-2020: Clutch pedal position sensor, engine start,
water pump
122016-2018: Engine valves;
2019-2020: Engine valves, engine mount
13Radiator fan
142016-2018: Fuel injectors;
2019-2020: Fuel injectors, engine control module
152016-2018: Ignition coils;
2019-2020: Ignition coils, heated oxygen sensors
16Fuel pump
Fuse Holder B
1Anti-theft alarm system
2Engine control module
32016-2019: Lumbar support
2020: Left front seat electronics, lumbar support, massaging seat
4Automatic transmission selector mechanism
5Horn
6Electromechanical parking brake
7Gateway control module
82016-2019: Interior headliner lights
2020: Roof electronics control module
92016-2018: Empty;
2019-2020: Emergency call system
10Airbag control module
11Electronic Stabilization Control (ESC)
12Diagnostic connector, light/rain sensor
13Climate control system
14Right front door control module
15A/C compressor
162016-2018: Empty;
2019-2020: Left neck heating
Fuse Holder C
1Front seat heating
2Windshield wipers
3Left headlight electronics
4Panorama glass roof
5Left front door control module
6Sockets
72016-2018: Right rear door control module;
2019-2020: Door control module, right rear window regulator
8AWD control module
9Right headlight electronics
10Windshield washer system/headlight washer system
112016-2018: Left rear door control module;
2019-2020: Door control module, left rear window regulator
122016-2018: Empty;
2019-2020: Parking heater
Fuse Holder D
12016-2018: Seat ventilation, rearview mirror, climate control system, rear climate control system controls, windshield heating, neck heating, front passenger’s airbag warning light;
2019-2020: Seat ventilation, rearview mirror, rear controls for climate control system, windshield heating, neck heating, front passenger airbag warning lamp, gateway diagnostics
22016-2018: Gateway, climate control system;
2019: Empty;
2020: Gateway diagnosis, vehicle electrical system control module
3Sound actuator/exhaust sound tuning
4Clutch pedal position sensor
52016-2018: Engine start;
2019-2020: Engine start, emergency shut-off
62016-2018: Empty;
2019-2020: Gateway
7Rear USB charging port
8HomeLink (Garage door opener)
92016-2018: Adaptive cruise control;
2019-2020: Adaptive cruise control, distance regulation
102016-2018: Empty;
2019-2020: Exterior sound, pedal module
11Video camera
12Matrix LED headlight/right LED headlight
13Matrix LED headlight/left LED headlight
142016-2018: Empty;
2019-2020: Transmission fluid cooling valve
152016-2018: Empty;
2019: Alarm and hands-free calling system
162016-2018: Empty;
2019: Rear Seat Entertainment preparation
Fuse Holder E
1Ignition coils
22016-2018: Empty;
2019-2020: Compressor coupling, CNG system, engine valves
52016-2018: Engine mount;
2019-2020: Left headlight
6Automatic transmission
7Instrument panel
8Climate control system (blower)
92016-2018: Engine mount;
2019-2020: Right headlight
10Dynamic steering
11Engine start

Inside the trunk fuse box

The table below displays the assignment of fuses inside the trunk from 2016 to 2020 vehicle model.

No.Description
Fuse Holder A
2Windshield defroster
3Windshield defroster
5Suspension control
6Automatic transmission
7Rear window defogger
8Rear seat heating
92016-2018: Tail lights;
2019-2020: Left tail lights
102016-2018: Left safety belt tensioner;
2019-2020: Airbag control module
112016-2018: Central locking system;
2019: Luggage compartment lid central locking, tank locking, rear sunshade
2020: Luggage compartment lid lock, fuel filler door lock, luggage compartment cover
122016-2018: Power luggage compartment lid, left neck heating;
2019-2020: Luggage compartment lid
Fuse Holder B
62016-2018: Empty;
2019-2020: Battery power interrupt
Fuse Holder C
2Telephone, safety belt microphone
32016-2019: Lumbar support
2020: Right front seat electronics, lumbar support
4Audi side assist
52019: Rear Seat Entertainment preparation
62016-2018: Ultrasonic sensors;
2019-2020: Ultrasonic sensors, tire pressure monitoring system
72016-2018: Empty;
2019-2020: Vehicle opening/start (NFC)
82016-2018: Smart module (tank);
2019-2020: Auxiliary heating radio receiver, smart module (fuel tank)
9Power top control module
102016-2018: Empty;
2019-2020: TV tuner, gateway
112016-2018: 12 Volt battery;
2019-2020: Auxiliary battery control module
12HomeLink (Garage door opener)
13Rearview camera, peripheral cameras
14Right tail lights
162016-2019: Right safety belt tensioner
2020-2020: Airbag control module
Fuse Holder E
1Right neck heating
22016-2018: Sound-amplifier;
32016-2018: AdBlue heating;
2019-2020: Engine components
4Power top control module
5Trailer hitch (right light)
7Trailer hitch
8Trailer hitch (left light)
9Trailer hitch (socket)
10Sport differential
112016-2018: AdBlue heating;
2019-2020: Engine components

Fuse Box Diagrams 2020-2023 (Facelift)

Front cockpit

(LHD) Left-hand drive vehicles.

(RHD) Right-hand drive vehicles.

The table below displays the assignment of fuses in the footwell from 2020 to 2023 (Facelift) vehicle model.

No.Description
Fuse Holder A
1Catalytic converter heating
2Engine components
3Exhaust doors, fuel injectors, air intake, motor heating
4Vacuum pump, hot water pump, NOx sensor, particulate sensor, biodiesel sensor, exhaust doors
5Brake light sensor
6Engine valves, camshaft adjustment
7Heated oxygen sensors, mass airflow sensor, water pump
8Water pump, high pressure pump, high pressure regulator valve, temperature valve, engine mount
9Hot water pump, motor relay, 48 V starter generator, 48 V water pump
10Oil pressure sensor, oil temperature sensor
11Clutch position sensor, 48 V starter generator, water pump, 12 V starter generator
12Engine valves, engine mount
13Engine cooling
14Fuel injectors, drive system control module
15Ignition coils, heated oxygen sensors
16Fuel pump
Fuse Holder B
1Anti-theft alarm system
2Drive system control module
3Left front seat electronics, lumbar support, massaging seat
4Automatic transmission selector lever
5Horn
6Parking brake
7Diagnostic interface
8Roof electronics control module
9Emergency call and communication control module
10Airbag control module
11Electronic Stabilization Control (ESC), Anti-Lock Braking System (ABS)
12Diagnostic connection, light/rain sensor
13Climate control system
14Right front door control module
15Climate control system compressor
16Brake system pressure reservoir, left neck heating
Fuse Holder C
1Front seat heating
2Windshield wipers
3Left headlight electronics
4Panoramic glass roof
5Left front door control module
612 volt socket
7Right rear door control module, right rear power window
8All wheel drive control module
9Right headlight electronics
10Windshield washer system/headlight washer system control module
11Left rear door control module, left rear power window
12Parking heater
Fuse Holder D
1Front seat electronics, seat ventilation, rearview mirror, rear climate control system control panel, neck heating, front passenger’s airbag warning light, diagnostic connection
2Diagnostic interface, vehicle electrical system control module
3Sound generator
4Clutch position sensor
5Engine start, emergency shut-off
6Diagnostic connection, traffic information antenna (TMC)
7USB connection
8Garage door opener
9Audi adaptive cruise control, adaptive distance regulation
11Front camera
12Right headlight
13Left headlight
14Transmission fluid cooling
Fuse Holder E
1Ignition coils
2Climate control system compressor
5Left headlight
6Automatic transmission
7Instrument panel
8Climate control system blower
9Right headlight
10Dynamic steering
11Engine start

Cockpit fuse box

The table below displays the assignment of fuses on the left side of the cockpit (driver side) from 2020 to 2023 (Facelift) vehicle model.

No.Description
1Convenience access and start authorization control module
2Audi phone box, USB connection
4Head-up display
5Audi music interface, USB connection
6Front climate control system control panel
7Steering column lock
8Center display
9Instrument cluster
10Volume control
11Light switch, switch module
12Steering column electronics
14Infotainment system
16Steering column electronics, steering wheel heating

Inside the trunk fuse box

The table below displays the assignment of fuses inside the trunk from 2020 to 2023 (Facelift) vehicle model.

No.Description
Fuse Holder A
2Windshield defroster
3Windshield defroster
5Suspension control
6Automatic transmission
7Rear window defogger
8Rear seat heating
9Left tail lights
10Airbag, driver’s side safety belt tensioner control module
11Luggage compartment lid lock, fuel filler door lock, convenience system control module
12Luggage compartment lid
Fuse Holder B
6Electric compressor
Fuse Holder C
1Exterior antenna
2Audi phone box, safety belt microphone
3Right front seat electronics, lumbar support, massaging seat
4Side assist
6Interior monitoring, anti-theft alarm system, tire pressure monitoring system
7Convenience access and start authorization control module
8Auxiliary heating, tank module
9Power top control module
10TV tuner, data exchange and telematics control module
11Auxiliary battery control module
12Garage door opener
13Rearview camera, peripheral cameras
14Right tail lights
162020-2021: Airbag control module
2022-2023: Airbag, front passenger’s side safety belt tensioner control module
Fuse Holder E
1Right neck heating
3Exhaust treatment
4Power top control module
5Right trailer hitch light
7Trailer hitch
8Left trailer hitch light
9Trailer hitch socket
10All wheel drive control module, sport differential
11Exhaust treatment

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