2008 Audi TT Quattro Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 2008 Audi TT Quattro
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2008 Audi TT Quattro ProblemsFlasher Relay Failure Can Cause Erratic Turn Signal Operation
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
A creaking type noise may be noted from the front suspension. Replacement of the front sway bar may be required to correct this issue.
Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:
- Succession of loud pops from rear of vehicle
- Pops go away, and fuel economy decreases
- Check engine light illuminates
- OBD trouble code P2404 and/or P0441 is stored
- Engine will not start after refueling (must crank for over 30 seconds)
- Vibration when slowing to a stop
The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank.
Correction of the issue is to replace the N80 valve with the latest revision.
2008 Audi TT Quattro RecallsInterior Side Trim Panels May Become Detached
The retainers clips for the C-pillar trim panels may not retain the panels sufficiently. In a collision, the trim panel may become a projectile and injure an occupant. Dealers will install an improved retainer clip. The Audi recall number is 70D1/JX. This recall began on March 7, 2008.