2006-2014 Audi TT Fuse Box Diagram
The various electrical circuits are protected by fuses. The fuses are clustered in a centralized unit. The unit is located behind the face panel at the end of the instrument panel.
Two spare fuses and a sticker identifying the fuses are located on the inside of the fuse box cover. Fuse Location, Instrument Panel left.
| • Never replace a fuse with one that has a higher amperage rating.
• A fuse with a too high amperage could damage the electrical part and cause a fire. • On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause fire. • If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed. |
Some of the equipment items listed are optional or only available on certain model configurations.
Note that the following table is accurate at the time of going to press and is subject to change. In the event of discrepancies, the label on the inside of the cover always takes precedence.
The power seats are protected by circuit breakers, which automatically reset after a few seconds after the overload has been remedied.
Fuse Location, Instrument Panel left
| No. | A | Description |
|---|---|---|
| 1 | 10 | Engine relay, fuel tank control unit, Airbag Off light, light switch (switch illumination), diagnostic connector |
| 2 | 5 | ABS, ASR, ESP, brake light switch |
| 3 | 5 | AFS headlight (left) |
| 4 | 5 | Oil level sensor (extended maintenance interval) (WIV), tire pressure monitoring system, switch for Electronic Stability Program (ESP), AFS headlights (control unit), A/С system (pressure sensor), backup light switch |
| 5 | 5 | Automatic headlight range control, AFS headlight (right) |
| 10 | Manual headlight range control, halogen headlights | |
| 6 | 5 | Control unit for CAN data transfer (gateway), electromechanical steering, automatic transmission shift gate |
| 7 | 5 | Acoustic Park Assist, automatic dipping interior rear view mirror, garage door opener, heatable windshield washer nozzles, washer pump, wind deflector relay (Roadster) |
| 8 | 5 | Haldex clutch |
| 9 | 5 | Control unit Audi magnetic ride |
| 10 | 5 | Airbag control unit |
| 11 | 5 | Mass airflow sensor, crankcase heating |
| 10 | Mass airflow sensor, crankcase heating | |
| 12 | 10 | Door control unit (central locking driver/passenger) |
| 13 | 10 | Diagnostic connector |
| 14 | 5 | Rain sensor, automatic transmission shift gate |
| 15 | 5 | Roof light (interior lighting) |
| 16 | 10 | A/С system (control unit) |
| 17 | 5 | Tire pressure monitoring system (control unit) |
| 18 | - | Not used |
| 19 | - | Not used |
| 20 | - | Not used |
| 21 | 10 | Fuel injectors (gasoline engine) |
| 22 | 30 | Roadster: Wind deflector |
| 23 | 20 | Horn |
| 24 | 15 | Transmission (control unit) |
| 25 | 30 | Coupe: Heater rear window |
| 20 | Roadster: Heated rear window | |
| 26 | 30 | Driver's side power window |
| 27 | 30 | Passenger's side power window |
| 28 | - | Not used |
| 29 | 15 | Washer pump |
| 30 | 20 | Cigarette lighter |
| 31 | 40 | Starter |
| 32 | 5 | Steering column module |
| 33 | 5 | Instrument cluster |
| 34 | 15 | Radio navigation system, radio |
| 35 | 30 | Audio amplifier |
| 36 | 10 | Engine (control unit) |
| 37 | 5 | CAN (Gateway) |
| 38 | - | Not used |
| 39 | - | Not used |
| 40 | - | Not used |
| 41 | - | Not used |
| 42 | - | Not used |
| 43 | - | Not used |
| 44 | - | Not used |
| 45 | - | Not used |
| 46 | - | Not used |
| 47 | 5 | SDARS tuner, cell phone package, TV tuner |
| 48 | 5 | VDA interface |
| 49 | 5 | Not used |
Fuse location, left side of engine compartment
| No. | A | Description |
|---|---|---|
| 1 | - | Not used |
| 2 | - | Not used |
| 3 | - | Not used |
| 4 | - | Not used |
| 5 | 5 | Anti-theft warning system (sensor), anti-theft warning system (horn) |
| 6 | 30 | Headlamp washer system |
| 7 | 15 | Electric fuel pumps (supply) |
| 10 | Volume control valve | |
| 8 | 30 | Windshield wipers |
| 9 | 25 | Heated seats (driver and passenger) |
| 10 | 10 | Lumbar support (driver and passenger) |
| 11 | - | Not used |
| 12 | 40 | Ventilation blower |
| Fuse holder (brown) | ||
| 1 | 15 | Fuel pump (6-cylinder) |
| 2 | 10 | O2 sensors (6-cylinder) |
| 3 | 5 | Mass airflow sensor (6-cylinder) |
| 4 | 10 | O2 sensors (6-cylinder) |
| 5 | 5 | Relay coil relay volume control valve (4-cylin-der) |
| 6 | 10 | Secondary air pump valve (6-cylinder), O2 sensors (4-cylinder) |
| 7 | 10 | Positioning valves pre-wired engine harness |
| 8 | 20 | 4-cylinder: Ignition coils |
| 30 | 6-cylinder: Ignition coils | |
| 9 | 25 | Engine (control unit) |
| 10 | 10 | Water pump delayed-off |
| 11 | 5 | Feed (clutch pedal, brake pedal) |
| 12 | 10 | Activated charcoal filter/charge pressure control valve (4-cylinder) |