We've updated our reliability stats for the TT to include owner experiences through September 30, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 26, low, very small sample size
2008 TT: 65, moderate, small sample size
2001 TT: 59, low

We'll have further updates in February and in May. The more owners participate, the more comprehensive and precise these will be.

To see how competitors compare, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

We've updated our reliability stats for the TT to include owner experiences through December 31, 2013.

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 25, low, very small sample size
2008 TT: 86, high, small sample size
2002 TT: 85, moderate, very small sample size
2001 TT: 54, low, small sample size

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

To see the repairs behind these stats, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

Our reliability stats for the TT now include owner experiences through March 31, 2014, making them nearly a year ahead of other sources.

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 16, low, very small sample size
2008 TT: 83, moderate, small sample size
2002 TT: 88, moderate, very small sample size
2001 TT: 56, low

Thank you, once again, everyone who has been helping. Next update in August.

For a deeper dive, including the stats for other cars and repair descriptions, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

No data for 2004 Coupe? I'm considering purchasing a used one and looking for more info.

 

Not enough owners signed up with the 2004 yet, unfortunately.

We've updated our reliability stats for the TT to include owner experiences through June 30, 2014 (making them about 14 months ahead of some others).

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 16, low, very small sample size
2008 TT: 84, high, small sample size
2002 TT: 92, moderate, very small sample size
2001 TT: 53, low, small sample size

Next updates in November and in February. The more owners participate, the more comprehensive and precise these will be.

For repair descriptions, the stats of other cars, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

We've updated our reliability stats for the TT to include owner experiences through September 30, 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 44, low, very small sample size
2008 TT: 72, moderate, small sample size
2002 TT: 103, moderate, very small sample size
2001 TT: 51, low, small sample size

Additional participants very much needed (I'd love to drop the disclaimers and cover more model years).

To view the repairs behind these numbers, check the stats for other cars, and sign up to help improve this information (next update in February):

Audi TT reliability ratings and comparisons

 

We've updated our reliability stats for the TT to include owner experiences through the end of 2014.

Repair frequencies, in terms of repair trips per 100 cars per year:

2009 TT: 36, low, very small sample size
2008 TT: 56, moderate, small sample size
2002 TT: 100, moderate, very small sample size
2001 TT: 56, low, small sample size

We'll have further updates in May and in August. The more owners participate, the more comprehensive and precise these will be.

For the details, including how competitors compare, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

So, how have these cars been doing lately?

Our reliability stats for the TT now include owner experiences through March 31, 2015. (Others are nearly a year behind.)

In terms of repair trips per 100 cars per year ("low" is best):

2009 TT: 38, low, very small sample size
2008 TT: 55, moderate, small sample size
2002 TT: 86, moderate, very small sample size
2001 TT: 60, low, small sample size

No stat for a model year? Then we very much need more participants for it. Same for those with small sample size notes. Next updates in August and November.

For repair descriptions, the stats for other cars, and to sign up to help improve this information:

Audi TT reliability

 

Our reliability stats for the TT now cover the year ending June 30, 2015. (Others are over a year behind, and so report how these cars were doing when a year younger.)

Repair trips per 100 cars:

2009 TT: 57, moderate, very small sample size
2008 TT: 65, moderate
2002 TT: 95, moderate, very small sample size
2001 TT: 80, low

If a model year isn't listed, or its sample size is small, then we especially need more owners involved.

For the descriptions of all reported repairs, results for other models, and to sign up to help improve this information:

Audi TT reliability ratings and comparisons

 

My 2012 TT with 16k miles had ENGINE FAILURE and now ENGINE REPLACED (still not sure if its a new one or remanufactured one as it says NEW LONG BLOCK INSTALLED)...so audi TT is NOT a reliable car