2004 Audi TT Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Audi TT

2004 Audi TT Problems

No Start after Refueling and Popping Noise from Trunk

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. 

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.

Engine Oil Leaks

Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.

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2004 Audi TT Questions

took cluster out to get repaired car won't start. Any connection? (1 answer)

took cluster out to get repaired, car won't start. Any connection?

What is the repair anaylsis for a 2004 Audi TT 4 cylinder turbo with 80000 miles (1 answer)

Trying to figure out what the general problems of a 2004 Audi TT would be and it would be helpful for information like, "in general transmission goes out after so many mile, or anythign else you all know.

Thanks!

cause of split inner cv boot (1 answer)

I sent my car in to have the front panel replaced after someone ran into the left front part of my car. I was told it was only a cosmetic damage. I wasn't pleased with the garage then as i had to bring in a few more times with 'noises' coming from the same part of the car. 6 months do...

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2004 Audi TT Recalls

The Clutch May Fail Prematurely

145 vehicles were assembled with a seam at the clutch that was not welded to specifications. This could lead to degraded performance of the clutch inside the gearbox. As a result, the clutch could fail without warning, disabling the vehicle and increasing the risk of a crash. This recall began on April 30, 2004. The Audi recall number is JA.

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2004 Audi TT Reviews

Rated
based on 1 customer reviews
transmission just went out at 42K miles and will cost 7grand to replace. Nice. No help from AUDI even given the low miles. INstrument cliuster failure at the same time, that's another grand to fix. I missed the class action law suit extension of warranty by a few months. Nice. Will never buy audi again. Lots of reported electrical issues and now a new Tranny already, insane.

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