i got my z from a dealer in may and had some major problems with it, started to think that it was the worst decision id made, then found a few internet sites that backed up the unreliability thing. ive had most of the usual problems with the car although mines a NA so cant comment on the TT
but after all that, i found this site and a few of the other forums and then found out that most of the problems are actually pretty common and most people have had experiences of them, i found help on diagnosing and in most cases fixed the problems and im not mechanical in anyway.
few examples were when car died on me - through forum pages i found that it was the PTU, got a new one and it was fixed, clutch was playing up, found step by step on adjusting it and fixed, car had bad hesitation and high idle, cleaned TBs and airflow reg and its fixed.
the wealth of knowledge and willingness to share has turned my mind from the worst buy of my life to a car that ill hopefully enjoy for along time yet!! have learnt alot in the process too. certainly wouldnt find that for a focus or something - that would have been dealer/garage whenever anything went wrong!!!
darren