I've wanted an A4 Avant for some time now, and finally got one around 2 months ago - but I fear my 'dream' car is going to turn into a nightmare.... The car in question is a 2.0FSI on an 03 plate with 37k miles, bought from a main dealer - the deal was good and I got free servicing, so I was a pretty happy bunny. After a few days, I noticed it idled really badly, and was dropping revs below 400rpm (and occassionally stalling) at roundabouts/junctions etc. so it went in for some remedial work. To be honest, I had a list of things to be dealt with, which were all sorted including a knock sensor to cure the idle problem. Since then the car drives great most days, but on others it has no power - feels like the engines being 'strangled' and every now and again when holding a cruising speed (either 'manually' or with cruise control) theres a little misfire/hiccup thing going on. Sometimes it won't start either - or if it does, it starts, literally at zero revs - chugging up to 800 or so rpm. Today, I had a flurry of amber lights show up - first ECP, followed by Traction Control and later the Engine Management System light... The car's booked in on Monday to look at the issues in the previous paragraph, but the warning lights concerned me, so I dropped in to the dealer on my way home from the office. They hooked up the diagnostics and confirmed a fault with the throttle position sensor (or something like that), but also some "spurious engine management codes that required further investigation". I was told that in their opinion, it was dangerous to drive my car. I can't fault the dealer at all (I just hope the service continues). I turned up very close to closing time, but they still took the time to check things out and sent me away in a courtesy car, promising to contact me tomorrow once they had done some investigating. I'm just getting concerned I've been sold/bought a lemon. Sure, I've got a warranty, and the dealer ought to have the chance to sort things out (right?) - it's just that I've only had the car 2 months, in which time it's been at the dealer and bodyshop for 2 weeks dealing with various warranty repairs and bits'n'pieces.... Will things get better? Should I look out for other "known problems" at this age/mileage? I worry that this car is just going to end up costing me money....I don't think I'm in a position to get a replacement car, although I guess it might come to that if the problems persist and the dealer can't fix them.... Hopefully it's just a dodgy start Anybody experienced similar problems, but had a happy ending?