I have a 2006 A3 2.0 TDI.
It is completely standard but has turbo issues.
It had a new turbo fitted under warranty in December 2008 with only 32000 miles on the car from new.
I now have 38000 miles on the car and the turbo is screaming its head off.
It actually soulnd like police sirens behind me most of the time.
I took it to my local dealer and the mechanic drove it and says it needs another new turbo.
My dealer says as the car is now outside warranty i have to pay for this, no warranty with the new turbo that was fitted 6000 miles ago.
I have lodged a complaint with Audi UK as i feel 6000 miles on a new turbo which now needs replaced is very poor.
It is booked in for a diagnostic this Monday coming and Audi agreed the would fund 50% of the fee leaving me £50 to pay.
A report will then be sent to Audi UK and they will decide if they can help.