 I purchased a 2009 Jetta TDI in June of 2009. I put a lot of miles on cars & I have put 36875 miles on this one in less than a year. It has been in the shop 2X for engine problems.  First time it wouldn't start or even try to start. Had it towed to the dealer, they said there was nothing wrong with it. It's in the shop now with 2 bad fuel injectors, a bad fuel pressure sensor and a clogged DPF. I told the dealer many times that it  would run rough, but they said there was nothing wrong with it. Luckily I had bought the 60k mile extended warranty, it covers everything except the DPF, & it was not covered by the extended warranty or the Federal Emissions Warranty. Wish I never bought this car!