Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2005 Audi TT Base, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| ABS Control Module (W/EDL) (1.8L) | At left side of engine compartment. See Figure . |
| ABS Control Module (W/EDL) (3.2L) | Left side of engine compartment. See Figure . |
| Air Bag Control Module | Beneath center of dash, on central tunnel. See Figure . |
| All Wheel Drive Control Module | Under rear of vehicle. See Figure . |
| Central Locking Control Module | Behind left trim panel. See Figure . |
| Coolant Fan Control (FC) Module | On left front of engine compartment. See Figure . |
| ESP Sensor Unit | Behind left side of dash. See Figure . |
| Fresh Air Blower Control Module | Under right side of dash. See Figure . |
| Garage Door Opener Control Module | Right side of grille. See Figure . |
| Headlight Beam Adjusting Control Module (Coupe) | Behind left trim panel. See Figure . |
| Headlight Beam Adjusting Control Module (Roadster) | On bulkhead behind seats. See Figure . |
| Headlight Range Control Module | Below rear bench seat. See Figure . |
| Lamp Control Module | In 13 fold relay panel. See Figure . |
| Left Headed Door Lock Control Module | In driver's door. See Figure . |
| Motronic Engine Control Module (ECM) | At base of windshield, in center of plenum. See Figure . |
| Radar Interior Monitoring Control Module | In center console. See Figure . |
| Throttle Valve Control Module (1.8L) | On throttle body. See Figure . |
| Throttle Valve Control Module (3.2L) | On throttle body. See Figure . |
| Wind Deflector Control Module (Cabrio) | In 13 fold relay panel. See Figure . |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.