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2015 Audi A3 8V Fuse Box Diagram

The 2015 Audi A3 (8V) has 2 fuse boxes. Choose the one you’re looking at.

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Instrument panel fuse box (fuse holder C)

Model year 2015 adds two entries to the cabin holder that earlier editions left blank: F1 becomes the SCR system's engine components at 30 A and F20 the tank system at 7.5 A, with the tank system also joining F19's convenience-key module. This is the last US edition to print ratings at all, so its values carry forward to the years after it.

The holder is behind the steering-column trim on a left-hand-drive car — the panel with the AIRBAG label, pulled away from its lower right corner — or behind a glove-box cover on a right-hand-drive one. Plate B8V-0217 numbers fifty-three positions: F1 and F2 on end at the top corners with relays R1 to R3 between, the large F3 beside the rows F4 to F10 and F11 to F14, then F15 to F21 with F22 under them; the large F23, the row F24 to F28, F29 over F30, the large F31; F32 to F37 and F38 to F42 with F40 half a fuse lower; and along the bottom the large F43, F44 to F49, the large F50 with F52 and F51 beneath, and F53 on the right lobe above relays R5, R6 and R4. Rows read left to right.

R1R2R3R4R5R63030301101010240404037.57.57.54555555561010107101010811195551025252511151515122020201330303014101010157.57.57.516555177.57.57.5187.57.57.5197.57.57.52021224040402320202024303030253030302630303027555287.57.57.52930404040317.57.57.532555337.57.57.53410101035151515361515153738303030392020204025252541404040423030304315151544151515454615151547485554950515230303053
No.FunctionAmpDescription
130 AATOEngine components (SCR/AdBlue system)
210 AMINISeat adjustment
340 AJCASEHydraulic pump for the soft top (Cabriolet)
47.5 AMINIMMI control console and MMI components
55 AMINIGateway (data bus diagnostic interface)
65 AMINIAnti-theft alarm system
710 AMINIAir conditioner/heater control panel, selector lever (automatic gearbox), auxiliary heating, relay coil for the rear window heating
810 AMINIDiagnostic connector, electronic parking brake switch, light switch, rain/light sensor, interior lighting
91 AMINISteering column switch module (1 A in every Audi edition; one fuse database prints 10 A)
105 AMINIDisplay
1125 AATOReversible belt tensioner, driver's side
1215 AATOMMI system (15 A or 20 A depending on equipment)
1320 AATOControl unit for suspension control (adaptive dampers)
1430 AATOAir conditioner blower (fresh air blower)
1510 AMINIElectronic steering column lock
167.5 AMINIMMI system
175 AMINIInstrument cluster
187.5 AMINIReversing camera
197.5 AMINIConvenience key system control module, tank system
207.5 AMINITank system (single source: 2015 US edition)
21Not used
22Not used
2340 AJCASEExterior lighting, right side (vehicle electrical system control module)
2420 AATOPanorama roof; soft top control unit and soft top lock (Cabriolet) (20 A or 30 A depending on equipment)
2530 AATODriver's side door(s): electric windows and door control unit
2630 AATOSeat heating
2730 AATOSound amplifier
285 AATOSoft top control unit, electronics (Cabriolet)
297.5 AMINIInterior lights
30Not used
3140 AJCASEExterior lighting, left side (vehicle electrical system control module)
327.5 AMINIDriver assistance systems
335 AMINIAirbag control unit
347.5 AMINIButton/switch illumination, neck heating relay coil (Cabriolet) and socket relay, interior sound, reversing light switch, temperature sensor, oil level sensor
3510 AMINIDiagnostics, headlight range control, air quality sensor, automatic anti-dazzle mirrors
3615 AMINICornering light, right / LED headlight, right
3715 AMINICornering light, left / LED headlight, left
38Not used
3930 AATOFront passenger's side door(s): electric windows and door control unit
4020 AATOCigarette lighter and 12 V sockets
4125 AATOReversible belt tensioner, front passenger's side
4240 AATOCentral locking system
4330 AJCASEWindscreen washer system
4415 AATOFour-wheel drive (quattro) control unit
4515 AATOElectrically adjustable seat, driver's side (power seats also have self-resetting circuit breakers)
46Not used
4715 AATORear window wiper
48Not used
495 AMINIStarter relays, clutch sensor
50Not used
51Not used
52Not used
5330 AATORear window heating

Engine compartment fuse box (fuse holder B)

Three columns of blade fuses make up most of this holder and are read from the top down: F15 to F21 on the left, F31 to F38 in the middle, F3 to F10 on the right. Around them sit the six green JCase cartridges — F14 at the top left with the blade F13 and relay R4, F2 and F1 at the top right, F12 and F11 between relays R3 and R5 in the band beneath, and F24 at the bottom next to relay R7. F22 and F23 are stacked in the bottom left corner, relay R6 lies along the bottom edge, and six bolt-down links run across the top of the plate.

The holder is fuse holder B, in the left of the engine compartment under a snap-off cover with the fuse clip inside it. The model-year 2015 US book is the last American edition to print ratings, and it is the source for the engine-dependent values on F5 (tank system) and F9 (exhaust flap, glow-plug control, SULEV valve). F37, the auxiliary heating position, appears in no US edition at all and is carried here from the European handbook.

Bolt-down links (not numbered on the plate)R4R3R5R8R9R10R1R2R7R640404014040402151515355547.57.57.5555567.57.57.57101010855591515151040404011404040121515151314151515157.57.57.5167.57.57.517555183030301910101020215552230303023404040241515153155532333435362020203738
No.FunctionAmpDescription
140 AJCASEESC (ABS) control unit
240 AJCASEESC (ABS) control unit
315 AATOEngine control unit, petrol or diesel (15 A or 30 A depending on engine)
45 AATOEngine cooling, engine components, supplementary heater relay coils, secondary air pump relay (5 A or 10 A depending on engine)
57.5 AATOEngine components, tank system (7.5, 10 or 15 A depending on engine)
65 AATOBrake light sensor
77.5 AATOEngine components, coolant pumps (7.5, 10 or 15 A depending on engine)
810 AATOLambda (oxygen) sensor heating (10 A or 15 A depending on engine)
95 AATOEngine components, exhaust flap, glow time control module, SULEV valve (5, 10 or 20 A depending on engine)
1015 AATOFuel injectors, fuel pump control unit (15 A petrol, 20 A diesel)
1140 AJCASESupplementary (auxiliary air) heater, heating element 2
1240 AJCASESupplementary (auxiliary air) heater, heating element 3
1315 AATOAutomatic gearbox (S tronic mechatronics) control unit (15 A or 30 A depending on gearbox)
14Not used
1515 AATOHorn
167.5 AATOIgnition coils (20 A) or CNG shut-off valve on the g-tron (7.5 A)
177.5 AATOESC control unit, engine control unit
185 AATOTerminal 30 reference voltage
1930 AATOWindscreen wipers
2010 AATOHorn (the anti-theft alarm horn: the 2017+ editions name it the anti-theft alarm system)
21Not used
225 AATOTerminal 50, diagnostics
2330 AATOStarter
2440 AJCASESupplementary (auxiliary air) heater, heating element 1
3115 AATOVacuum pump
325 AATOLED headlights
33Not used
34Not used
35Not used
36Not used
3720 AATOAuxiliary heating (parking heater); not listed in the 2015-2016 US editions
38Not used