Audi TT (8J) | 2006-2014 | Fuse Box Diagrams and Locations

In this article, we focus on the second-generation Audi TT (chassis code 8J), a refined and sporty luxury coupe and roadster produced from 2006 to 2014. Praised for its iconic design, impressive performance, and advanced features, the second-generation TT elevated the model’s reputation as a standout in the sports car segment.

Here, you will find detailed fuse box diagrams for Audi TT models produced in 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014. These diagrams offer critical insights into the vehicle’s electrical systems, helping owners and technicians understand the assignment of each fuse (fuse layout). This information is essential for troubleshooting electrical issues, performing maintenance, or carrying out repairs efficiently.

This guide serves as a practical resource for understanding the electrical system of the second-generation Audi TT, equipping owners with the knowledge they need to maintain the reliability, functionality, and performance of this iconic sports car.

The cigar lighter (power outlet) fuses in the Audi TT are fuse No.30 and fuse No.38 (applicable since 2010) located in the Instrument Panel Fuse Box.

What’s Included

Passenger Compartment Fuse Box

Fuse Box Location

The location of the fuses in the passenger compartment: Audi TT (2006-2014)

The fuse block is located at the front left side of the cockpit.

Fuse Box Diagram

Assignment of the fuses on the left side of the dashboard

№	Description	Amps
1	Engine relay, fuel tank control unit, Airbag Off light, light switch (switch illumination), diagnostic connector	10
2	ABS, ASR, ESP/ESC, brake light switch	5
3	AFS headlight (left)	5
4	Oil level sensor (extended maintenance interval) (WIV), tire pressure monitoring system, switch for Electronic Stability Program (ESP / ESC), AFS headlights (control unit), A/C system (pressure sensor), backup light switch	5
5	Automatic headlight range control, AFS headlight (right) / manual headlight range control, halogen headlights	5/10
6	Control unit for CAN data transfer (gateway), electromechanical steering, automatic transmission shift gate	5
7	Acoustic Park Assist, automatic dipping interior rear view mirror, garage door opener, heatable windshield washer nozzles, washer pump, wind deflector relay (Roadster)	5
8	Haldex clutch	5/10
9	Control unit Audi magnetic ride	5
10	Airbag control unit	5
11	Mass airflow sensor, crankcase heating	5/10
12	Door control unit (central locking driver/passen-ger)	10
13	Diagnostic connector	10
14	Rain sensor, automatic transmission shift gate	5
15	Roof light (interior lighting)	5
16	A/C system (control unit)	10
17	Tire pressure monitoring system (control unit)	5
18	Not used	–
19	Not used	–
20	Not used	–
21	Fuel injectors (gasoline engine)	10
22	Wind deflector (Roadster)	30
23	Horn	20
24	Transmission (control unit)	15
25	Heater rear window Coupe/heated rear window Roadster	30/20
26	Driver’s side power window	30
27	Passenger’s side power window	30
28	Not used	–
29	Washer pump	15
30	Cigarette lighter	20
31	Starter	40
32	Steering column module	5
33	Instrument cluster	5
34	Radio navigation system, radio	15/20
35	Audio amplifier	30
36	Engine (control unit)	10
37	CAN (Gateway)	5
38	2008-2009: Not used; 2010-2014: Cigarette lighter	20
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	SDARS tuner, cell phone package, TV tuner	5
48	VDA interface	5
49	Not used	–

Engine Compartment Fuse Box

Fuse Box Location

The location of the fuses in the engine compartment: Audi TT (2006-2014)

Fuse Box Diagram

Assignment of the under-hood fuses.

№	Description	Amps
	Fuse holder A (black)
A1	Not used	–
A2	Not used	–
A3	Not used	–
A4	Not used	–
A5	Anti-theft warning system (sensor), anti-theft warning system (horn)	5
A6	Headlamp washer system	30
A7	Electric fuel pumps (supply) / Volume control valve / Interrelais (5-cyl.)	15/10
A8	Windshield wipers	30
A9	Heated seats (driver and passenger)	25
A10	Lumbar support (driver and passenger)	10
A11	Not used
A12	Ventilation blower	40

	Fuse holder B (brown)
B1	Fuel pump (6-cylinder)	15
B2	O2 sensors (6-cylinder) / Electric fuel pump (5-cyl.)	10/30
B3	Mass airflow sensor (6-cylinder)	5
B4	O2 sensors (6-cylinder)	10
B5	Relay coil relay volume control valve (4-cylinder) / O2 sensors (5-cyl.)	5/10
B6	Secondary air pump valve (6-cylinder), O2 sensors (4-cyl., 5-cyl.)	10
B7	Positioning valves pre-wired engine harness	10
B8	Ignition coils (4-cyl., 5-cyl.)/ignition coils (6-cylinder)	20/30
B9	Engine (control unit)	25
B10	Water pump delayed-off	10
B11	Feed (clutch pedal, brake pedal)	5
B12	Activated charcoal filter/charge pressure control valve (4-cylinder)	10