2014 Audi A3 8V Fuse Box Diagram
The 2014 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)
Fifty-three positions in the cabin holder, fuse holder C, drawn as Audi's plate B8V-0217 prints it. F1 on end at the top left and F2 at the top right frame the relays R1 to R3; the large JCase positions are F3, F23, F31, F43 and F50, and the rest are MINI and ATO blades in rows read from the left. Under the top row F4 to F10 and F11 to F14 come F15 to F21 and the flat F22; then F23 with F24 to F28, F29 above F30 and F31; then F32 to F37 with F38 to F42 beside them, F40 dropped half a body lower than its neighbours. The lower part holds F43 to F49, F50 with F52 and F51 stacked below it, and F53 on the right lobe above relays R5 and R6, R4 at the bottom.
Reach it from the driver's side: the trim panel around the steering column carrying the AIRBAG label unclips from its lower right corner. On right-hand-drive cars the holder is behind a cover inside the glove box instead. The 2014 assignment is the European handbook's, the same one the 2013 cars use.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | Not used | ||
| 2 | 10 AMINI | Seat adjustment | |
| 3 | 40 AJCASE | Hydraulic pump for the soft top (Cabriolet) | |
| 4 | 7.5 AMINI | MMI control console and MMI components | |
| 5 | 5 AMINI | Gateway (data bus diagnostic interface) | |
| 6 | 5 AMINI | Anti-theft alarm system | |
| 7 | 10 AMINI | Air conditioner/heater control panel, selector lever (automatic gearbox), auxiliary heating, relay coil for the rear window heating | |
| 8 | 10 AMINI | Diagnostic connector, electronic parking brake switch, light switch, rain/light sensor, interior lighting | |
| 9 | 1 AMINI | Steering column switch module (1 A in every Audi edition; one fuse database prints 10 A) | |
| 10 | 5 AMINI | Display | |
| 11 | 25 AATO | Reversible belt tensioner, driver's side | |
| 12 | 15 AATO | MMI system (15 A or 20 A depending on equipment) | |
| 13 | 20 AATO | Control unit for suspension control (adaptive dampers) | |
| 14 | 30 AATO | Air conditioner blower (fresh air blower) | |
| 15 | 10 AMINI | Electronic steering column lock | |
| 16 | 7.5 AMINI | MMI system | |
| 17 | 5 AMINI | Instrument cluster | |
| 18 | 7.5 AMINI | Reversing camera | |
| 19 | 7.5 AMINI | Control unit for the convenience key system | |
| 20 | Not used | ||
| 21 | Not used | ||
| 22 | Not used | ||
| 23 | 40 AJCASE | Exterior lighting, right side (vehicle electrical system control module) | |
| 24 | 20 AATO | Panorama roof; soft top control unit and soft top lock (Cabriolet) (20 A or 30 A depending on equipment) | |
| 25 | 30 AATO | Driver's side door(s): electric windows and door control unit | |
| 26 | 30 AATO | Seat heating | |
| 27 | 30 AATO | Sound amplifier | |
| 28 | 5 AATO | Soft top control unit, electronics (Cabriolet) | |
| 29 | 7.5 AMINI | Interior lights | |
| 30 | Not used | ||
| 31 | 40 AJCASE | Exterior lighting, left side (vehicle electrical system control module) | |
| 32 | 7.5 AMINI | Driver assistance systems | |
| 33 | 5 AMINI | Airbag control unit | |
| 34 | 7.5 AMINI | Button/switch illumination, neck heating relay coil (Cabriolet) and socket relay, interior sound, reversing light switch, temperature sensor, oil level sensor | |
| 35 | 10 AMINI | Diagnostics, headlight range control, air quality sensor, automatic anti-dazzle mirrors | |
| 36 | 15 AMINI | Cornering light, right / LED headlight, right | |
| 37 | 15 AMINI | Cornering light, left / LED headlight, left | |
| 38 | Not used | ||
| 39 | 30 AATO | Front passenger's side door(s): electric windows and door control unit | |
| 40 | 20 AATO | Cigarette lighter and 12 V sockets | |
| 41 | 25 AATO | Reversible belt tensioner, front passenger's side | |
| 42 | 40 AATO | Central locking system | |
| 43 | 30 AJCASE | Windscreen washer system | |
| 44 | 15 AATO | Four-wheel drive (quattro) control unit | |
| 45 | 15 AATO | Electrically adjustable seat, driver's side (power seats also have self-resetting circuit breakers) | |
| 46 | Not used | ||
| 47 | 15 AATO | Rear window wiper | |
| 48 | Not used | ||
| 49 | 5 AMINI | Starter relays, clutch sensor | |
| 50 | Not used | ||
| 51 | Not used | ||
| 52 | Not used | ||
| 53 | 30 AATO | Rear window heating |
Engine compartment fuse box (fuse holder B)
Six bolt-down links cross the top of this holder, and thirty-two fuses fill the space below them — the six square JCase cartridges F1, F2, F11, F12, F14 and F24, and twenty-six flat blades.
Their arrangement on plate B8V-0173: F14 and F13 in the top left corner next to relay R4, F2 and F1 in the top right; then relay R3, the pair F12 and F11, and relay R5. The body of the holder is three columns, each counted downwards — the left one F15 to F21 (relays R1 and R2 below it), the middle one F31 to F38 (relays R8 to R10 beside it), the right one F3 to F10. At the foot, F22 above F23 on the left, F24 next to relay R7, and R6 across the bottom. The holder is on the left of the engine bay under a cover that unclips and holds the plastic fuse clip. Model year 2014 is still covered by the European handbook of the launch, whose ratings this page uses; the Saloon and Cabriolet, which joined the range late in 2013, use the same holder.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 40 AJCASE | ESC (ABS) control unit | |
| 2 | 40 AJCASE | ESC (ABS) control unit | |
| 3 | 15 AATO | Engine control unit, petrol or diesel (15 A or 30 A depending on engine) | |
| 4 | 5 AATO | Engine cooling, engine components, supplementary heater relay coils, secondary air pump relay (5 A or 10 A depending on engine) | |
| 5 | 7.5 AATO | Engine components, tank system (7.5 A or 10 A depending on engine) | |
| 6 | 5 AATO | Brake light sensor | |
| 7 | 7.5 AATO | Engine components, coolant pumps (7.5, 10 or 15 A depending on engine) | |
| 8 | 10 AATO | Lambda (oxygen) sensor heating (10 A or 15 A depending on engine) | |
| 9 | 5 AATO | Engine components, exhaust flap, glow period control unit (5, 10 or 20 A depending on engine) | |
| 10 | 15 AATO | Fuel injectors, fuel pump control unit (15 A petrol, 20 A diesel) | |
| 11 | 40 AJCASE | Supplementary (auxiliary air) heater, heating element 2 | |
| 12 | 40 AJCASE | Supplementary (auxiliary air) heater, heating element 3 | |
| 13 | 15 AATO | Automatic gearbox (S tronic mechatronics) control unit (15 A or 30 A depending on gearbox) | |
| 14 | Not used | ||
| 15 | 15 AATO | Horn | |
| 16 | 7.5 AATO | Ignition coils (20 A) or CNG shut-off valve on the g-tron (7.5 A) | |
| 17 | 7.5 AATO | ESC control unit, engine control unit | |
| 18 | 5 AATO | Terminal 30 reference voltage | |
| 19 | 30 AATO | Windscreen wipers | |
| 20 | 10 AATO | Horn (the anti-theft alarm horn: the 2017+ editions name it the anti-theft alarm system) | |
| 21 | Not used | ||
| 22 | 5 AATO | Terminal 50, diagnostics | |
| 23 | 30 AATO | Starter | |
| 24 | 40 AJCASE | Supplementary (auxiliary air) heater, heating element 1 | |
| 31 | 15 AATO | Vacuum pump | |
| 32 | 5 AATO | LED headlights | |
| 33 | Not used | ||
| 34 | Not used | ||
| 35 | Not used | ||
| 36 | Not used | ||
| 37 | 20 AATO | Auxiliary heating (parking heater); not listed in the 2015-2016 US editions | |
| 38 | Not used |