2016 Audi A3 8V Fuse Box Diagram
The 2016 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)
The 2016 edition prints this holder without any ratings and rearranges part of its list. F6 becomes the automatic gearbox's selector lever and the anti-theft alarm moves into F8's group; the plug-in hybrid brings F38 (high-voltage battery) and F48 (outer noise amplifier); F42 picks up the windscreen washer system, F43 is named for the headlights and lighting, and F45, the driver's power seat, drops out of the table.
Access is unchanged: pull the AIRBAG-labelled cover in the steering-column area away from its lower right corner on a left-hand-drive car, or open the glove box and take off the cover inside it on a right-hand-drive one. The plate is B8V-0217 and reads in rows from the left — F1 and F2 on end at the top with relays R1 to R3 between them, the large F3 next to F4 to F10 and F11 to F14, F15 to F21 with F22 below them, the large F23 with F24 to F28 and F29 over F30, the large F31, then F32 to F37 and F38 to F42 (F40 sitting half a body low), and finally F43 to F49, the large F50 above F52 and F51, and F53 over relays R5 and R6 with R4 at the bottom.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 30 AATO | Engine components (SCR/AdBlue system) | |
| 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 | Selector lever (automatic transmission); rating not published - the 2013-2015 editions rated this position 5 A for the anti-theft alarm | ||
| 7 | 10 AMINI | Climate/heating control panel, auxiliary heating, rear window defogger relay coil | |
| 8 | 10 AMINI | Diagnostic connector, electromechanical parking brake switch, light switch, rain/light sensor, interior lighting, anti-theft alarm system, communication box (e-tron) | |
| 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 | Adaptive dampers control module; service plug (e-tron) | |
| 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 | Convenience key system control module, tank system | |
| 20 | 7.5 AMINI | Tank system (single source: 2015 US edition) | |
| 21 | Not used | ||
| 22 | Not used | ||
| 23 | 40 AJCASE | Exterior lighting, heated washer fluid nozzles (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 (vehicle electrical system control module) | |
| 32 | 7.5 AMINI | Driver assistance systems | |
| 33 | 5 AMINI | Airbag control unit | |
| 34 | 7.5 AMINI | Button illumination, coils for the neck heating relay (Cabriolet) and socket relay, interior sound, reversing light switch, temperature sensor | |
| 35 | 10 AMINI | Function lighting, diagnostics, headlight range control, air quality sensor, automatic dimming rear view mirror | |
| 36 | 15 AMINI | Cornering light, right / LED headlight, right | |
| 37 | 15 AMINI | Cornering light, left / LED headlight, left | |
| 38 | High-voltage battery (e-tron plug-in hybrid); rating not published | ||
| 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 components, windscreen washer system | |
| 43 | 30 AJCASE | Headlights, lighting (vehicle electrical system control module); 30 A from the 2013-2015 editions | |
| 44 | 15 AATO | Four-wheel drive (quattro) control unit | |
| 45 | Not used | ||
| 46 | Not used | ||
| 47 | 15 AATO | Rear window wiper | |
| 48 | Outer noise amplifier (e-tron plug-in hybrid); rating not published | ||
| 49 | 5 AMINI | Starter relays, clutch sensor, headlight relay coil, high-voltage battery (e-tron) | |
| 50 | Not used | ||
| 51 | Not used | ||
| 52 | Not used | ||
| 53 | 30 AATO | Rear window heating |
Engine compartment fuse box (fuse holder B)
Model year 2016 is when the e-tron plug-in hybrid reaches this holder: F16 takes the power electronics, F24 the brake booster, F31 the water pump, and F33 to F35 the brake-booster accumulator, its control and a relay — the last two printed without ratings, as the 2016 edition prints none at all.
The box itself is unchanged. Find it on the left-hand side of the engine compartment, under the cover whose underside holds the plastic fuse clip. On plate B8V-0173 the top edge carries six bolt-down links; under them, reading left to right, F14 and F13 with relay R4, then the cartridges F2 and F1; the next band is relay R3, the cartridges F12 and F11, and relay R5. Below that the plate divides into three columns numbered downwards — F15 to F21 (left), F31 to F38 (centre, flanked by relays R8 to R10), F3 to F10 (right) — and the bottom holds F22 over F23, then F24 with relays R7 and R6.
| 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, 10 or 15 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 time control module, SULEV valve (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 (7.5 A); power electronics on the e-tron | |
| 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 heater heating element 1; brake booster on the e-tron | |
| 31 | 15 AATO | Vacuum pump; water pump on the e-tron | |
| 32 | 5 AATO | LED headlights | |
| 33 | 30 AATO | Brake booster accumulator (e-tron); 30 A from the workshop list (brake system accumulator, gearbox oil pump), single source | |
| 34 | Brake booster control (e-tron); rating not published | ||
| 35 | Relay (e-tron); rating not published | ||
| 36 | Not used | ||
| 37 | 20 AATO | Auxiliary heating (parking heater); not listed in the 2015-2016 US editions | |
| 38 | Not used |