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Audi A4 (B9) 2015-2023

Driver's side dashboard fuse box · Audi

F1 · 5 A · Instrument cluster / virtual cockpit 5 F1 F2 · 10 A · MMI infotainment control unit 10 F2 F3 · 15 A · Hazard warning lights 15 F3 F4 · 10 A · Central locking control unit 10 F4 F5 · 15 A · Horn 15 F5 F6 · 20 A · Heated rear window 20 F6 F7 · 10 A · Heated and folding mirrors 10 F7 F8 · 15 A · ABS/ESC hydraulic control unit 15 F8 F9 · 10 A · Reversing lights 10 F9 F10 · 15 A · Brake lights and brake light switch 15 F10 F11 · 20 A · Front wiper motor 20 F11 F12 · 10 A · Rear washer pump (Avant) 10 F12 F13 · 15 A · Fuel pump control module 15 F13 F14 · 10 A · Engine control unit, low-current circuits 10 F14 F15 · 5 A · OBD diagnostic connector 5 F15 F16 · 10 A · Dashboard and switch illumination 10 F16 F17 · 15 A · 12V power sockets 15 F17 F18 · 20 A · Front power windows 20 F18 F19 · 20 A · Rear power windows 20 F19 F20 · 10 A · Driver assistance control unit (adaptive cruise, lane assist) 10 F20 F21 · 15 A · Alarm and immobilizer 15 F21 F22 · 10 A · Interior light with time delay 10 F22 F23 · 5 A · Airbag control unit 5 F23 F24 · 10 A · Seat belt pretensioners 10 F24 F25 · 10 A · Turn signals 10 F25 F26 · 15 A · Matrix LED headlight control unit 15 F26 F27 · 10 A · Rear fog light 10 F27 F28 · 5 A · Number plate light 5 F28 F29 · 10 A · Quattro all-wheel-drive control unit 10 F29 F30 · 15 A · Front heated and ventilated seats 15 F30 F31 · 10 A · Rear heated seats 10 F31 F32 · 15 A · Panoramic sunroof motor 15 F32 F33 · 10 A · Parking sensors and 360-degree camera 10 F33 F34 · 10 A · Adaptive air suspension control unit (S line/Avant) 10 F34 F35 · Not used F35 F36 · 10 A · Windscreen washer pump 10 F36 F37 · 10 A · Interior blower control module 10 F37 F38 · 5 A · Start-stop system battery sensor 5 F38 F39 · 10 A · Premium sound amplifier 10 F39 F40 · Not used F40 R1 · Wiper relay R1 RELAY R2 · Fuel pump relay R2 RELAY R3 · Heated rear window relay R3 RELAY R4 · Quattro coupling relay R4 RELAY AUTOFIXPEDIA

Tap a fuse to highlight it in the table.

Legend:Mini fuseStandard fuseMaxi fuseRelay
Colour by rating:5 A7 A10 A15 A20 A25 A30 A40 A

Location

Located on the driver's side, below the dashboard end panel near the door. Open the small hinged cover (or remove the trim panel on some trims) to access the fuses.

This is the main interior box on quattro-equipped A4s; front-wheel-drive versions leave the quattro coupling fuse and relay position unused. Driver assistance and matrix LED circuits are specific to higher trim levels, so some fuses may be unused depending on equipment. Fuse assignment varies by equipment level and production year. Always confirm with the label on the fuse box cover or the owner's manual.

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No.AmpsTypeProtected circuit
F15 AMini fuseInstrument cluster / virtual cockpit
F210 AMini fuseMMI infotainment control unit
F315 AMini fuseHazard warning lights
F410 AMini fuseCentral locking control unit
F515 AMini fuseHorn
F620 AMini fuseHeated rear window
F710 AMini fuseHeated and folding mirrors
F815 AStandard fuseABS/ESC hydraulic control unit
F910 AMini fuseReversing lights
F1015 AMini fuseBrake lights and brake light switch
F1120 AStandard fuseFront wiper motor
F1210 AMini fuseRear washer pump (Avant)
F1315 AMini fuseFuel pump control module
F1410 AMini fuseEngine control unit, low-current circuits
F155 AMini fuseOBD diagnostic connector
F1610 AMini fuseDashboard and switch illumination
F1715 AMini fuse12V power sockets
F1820 AStandard fuseFront power windows
F1920 AStandard fuseRear power windows
F2010 AMini fuseDriver assistance control unit (adaptive cruise, lane assist)
F2115 AMini fuseAlarm and immobilizer
F2210 AMini fuseInterior light with time delay
F235 AMini fuseAirbag control unit
F2410 AMini fuseSeat belt pretensioners
F2510 AMini fuseTurn signals
F2615 AMini fuseMatrix LED headlight control unit
F2710 AMini fuseRear fog light
F285 AMini fuseNumber plate light
F2910 AMini fuseQuattro all-wheel-drive control unit
F3015 AMini fuseFront heated and ventilated seats
F3110 AMini fuseRear heated seats
F3215 AMini fusePanoramic sunroof motor
F3310 AMini fuseParking sensors and 360-degree camera
F3410 AMini fuseAdaptive air suspension control unit (S line/Avant)
F35—Empty slotNot used
F3610 AMini fuseWindscreen washer pump
F3710 AMini fuseInterior blower control module
F385 AMini fuseStart-stop system battery sensor
F3910 AMini fusePremium sound amplifier
F40—Empty slotNot used
R1—RelayWiper relay
R2—RelayFuel pump relay
R3—RelayHeated rear window relay
R4—RelayQuattro coupling relay

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