
Not a jot to worry about. Had my GTTdi 115 for 8 months nowand no significant prob's, just minor niggles down to the odd flaw in build quality, eg; lovely red immobiliser light next to lock pin disappearing into the door.
Makes the most of the torque and you can worry some much quicker motors on A roads. I am however on a quest for a 'bit more' so am exploring chipping options. It is cheaper to buy @ 115 and chip to 150 than it is to buy a 150 by a long way, and I am reliably informed that this will not be detremental to the engine. Plus you get a nice 6 speed box. And nice mpg!!
A thought, look for a traded in 1 owner import at a dealers, you'll save ?1500+ (esp' if its not even on the forecourt and you don't bring a trade in), you'll get a v well spec'd car, I've got air-con AND an elec' glass roof, plus a years warranty and VW roadside assist. That's what I did and its worth it in the short term ie your pocket. Just don't be too picky re; colour. Mines Cosmic Green. Its grown on me!! It really is a matter of phoning the dealers every day and several times per day. It'll also probably have a full history. Mine was a 2001 car with 23000 warranted on the clock. Lovely.
Good hunting. I'll never buy petrol again unless i get 6 numbers on a sat' night. Make sure its a PDi unit though.