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Audi S3 (2009) - fuse box diagram

avatar Jonathan Yarden Jan 31, 2021 · 5 min. read

In this article you will find a description of fuses and relays Audi, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2009

Instrument panel

Audi A3 - fuse box diagram - instrument panel

Number Equipment Ampere rating [A]
1 Manual headlight beam adjustment, automatic headlight beam adjustment, AFS control module, engine components, light switch (switch lighting/illumination), diagnosis socket 10
2 Automatic transmission, control module for CAN data transfer (gateway), electro -mechanical steering, shift gate automatic transmission engine relay, fuel tank control unit, engine control unit, brakes control (ABS), Electronic Stabilization Program (ESP), Anti -Slip Regulation (ASR), brake light switch 10
3 Airbag 5
4 Air-conditioning (pressure sensor, air quality sensor), button for Electronic Stabilization Program (ESP), Anti-Slip Regulation (ASRI, oil level sensor (WIVl, back-up light switch, front seat heating, Seat-occupancy recognition (on USA vehicles), navigation, garage door opener, automatic mirror dimming, Heated windshield washer nozzles,air conditioning (control module 5
5 AFS headlights (left side) 5
6 AFS headlights (right side) 5
7 — —
8 — —
9 — —
10 — —
11 — —
12 Central locking (front doors) 10
13 Central locking (rear doors) 10
14 Electronic Stabilization Program (ESP) (control module), shift gate automatic transmission 10
15 Interior lights, reading lights 10
16 Diagnostic connector, rain sensor, air conditioning (control module), tire pressure monitor display (control module) 10
17 Anti -theft alarm warning system 5
18 Terminal 15 5
19 All Wheel Drive 10
20 Magnetic ride 5
21 — —
22 Blower fan 40
23 Driver’s side power window, front 30
24 Power outlet front 20
25 Rear window defogger 30
26 Power outlet in luggage compartment 20
27 Fuel tank control module, fuel pump 15
28 Power window , rear 30
29 — —
30 — —
31 Automatic transmission (vacuum pump) 20
32 Headlight washer system 30
33 Sliding/pop-up roof 20
34 — —
35 — —
36 Lumbar support 10
37 Heated seats, front 20
38 Passenger side power window, front 30
39 Special function interface 5
40 Starter 40
41 Rear window wiper 15
42 Windshield wiper (washer pump) 15
43 Convenience electronics (control module) 20
44 Trailer control module 20
45 Trailer control module 15
46 — —
47 Cell phone package (VDA interface) 5
48 — —
49 — —

 

Engine compartment

Audi A3 - fuse box diagram - engine compartment

Variation (1) with 30 Plug-in Fuses

Number Equipment Ampere rating [A]
F1 — —
F2 Steering wheel electronics 5
F3 Battery voltage 5
F4 ESP valves, Anti -lock brake system (ABS) valves 20
30
F5 Transmission control module 15
F6 Steering wheel electronics, instrument cluster 5
F7 Transmission control module 30
F8 Navigation system, radio system 15
25
F9 Navigation system, digital radio, cell phone, TV equipment 5
F10 Engine control module, main relay 5
10
F11 — —
F12 Control module for CAN data transfer (gateway) 5
F13 Engine control module 15
25
F14 Ignition coils 20
F15 Tank diagnosis, oxygen sensor 10
15
F16 Vehicle electrical system control unit (right) 30
F17 Horn 15
F18 Audio amplifier 30
F19 Front windshield wiper system 30
F20 Water return -flow pump, volume regulator valve 10
20
F21 Oxygen sensor, vacuum pump 15
F22 Clutch pedal switch, brake light switch 5
F23 Engine relays, engine components 5
10
15
F24 Engine components, water return-flow pump 10
F25 Pump (ESP/ABS), ABS valve 30
40
F26 Vehicle electrical system control unit (left) 30
F27 Secondary air pump 40
F28 — —
F29 Fuse assignment in the left-side instrument panel (special equipment) 50
F30 Power supply relay terminal 15 50

 

Variation (2) with 54 Plug-in Fuses

Number Equipment Ampere rating [A]
F1 Vehicle electrical system control unit (right) 30
F2 ESP valves, Anti -lock brake system (ABS) valves 20
30
F3 — —
F4 Battery voltage 5
F5 Horn 15
F6 Engine components, fuel pump 15
F7 — —
F8 — —
F9 Engine components 10
F10 Fuel tank control, mass air flow sensor 10
F11 Oxygen sensors, in front of catalytic converter 10
F12 Oxygen sensors, behind catalytic converter 10
F13 Automatic transmission 15
F14 — —
F15 Water return-flow pump 10
F16 Volume control valve 20
F17 Steering wheel electronics, instrument cluster 5
F18 Audio amplifier 30
F19 Navigation system, radio system 15
25
F20 Navigation system, digital radio, cell phone, TV equipment 5
F21 — —
F22 — —
F23 Engine control modu le, main relay 10
F24 Control module for CAN data transfer (gateway) 5
F25 — —
F26 — —
F27 — —
F28 Engine control module 15
25
F29 Engine relays, eng ine components 5
F30 — —
F31 Front windshield wiper system 30
F32 — —
F33 — —
F34 — —
F35 — —
F36 — —
F37 — —
F38 Engine components 10
F39 Clutch pedal switch, brake light switch 5
F40 Ignition coils  20
F41 — —
F42 — —
F43 Ignition coils 30
F44 — —
F45 — —
F46 — —
F47 Left-side lighting (electric system control unit) 30
F48 Pump (ESP/ABS), ABS valve, Anti-lock brake systern (ABS) valves 30
40
F49 — —
F50 — —
F51 Secondary air pump 40
F52 Power supply relay terminal 15 50
F53 Fuse assignment in the left-side instrument panel (special equipment) 50
F54 — —

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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