2006 Audi TT Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2006 Audi TT

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2006 Audi TT Problems

Loss of Power Due to Torn Rubber Valve

The Audi TT 2.0T FSI engine looses power if the turbocharging system has a leak. The most common turbo boost leak is a torn rubber diaphragm on the diverter valve, which is intended to open only if pressure gets too high. Common symptoms are increased turbo noise when letting off of the gas pedal, power loss, and engine code P0234.

If there is a turbocharging system leak, the system will need to be inspected, and the defective seals and/or valve will require replacement. 

Rattling From the Transmission May Be Heard When Engine is Cold

The flywheel for the 2006-2009 Audi TT 2.0L Turbo is a non-conventional "Dual Mass" flywheel. It is known to make light rattling noise when the engine is cold, and should subside once the engine temperature raises. If the rattle doesn't go away when the engine warms, the flywheel may have failed.

If the dual mass flywheel has failed, the only solution is to replace the flywheel.

Inspection of Water Pump and Timing Belt

The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.

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