Do you really want to buy this car? Lets see new engine, new fuel pump, new oil and water pump ( they are variable output ?), separate cooling loops for the block and cylinder head....oh and a new exhaust manifold with the intercooler as part of it. A smaller fuel tank ( 13.2 gal ), a 1 year or 10k miles VW supplied service, while the last is minor.
I bought a 2009 JSW and had the fun of moding my 2003 Jetta and acting as crew chief for my Dad's NB so I thought I knew about the long term care and feeding of TDIs. I don't think I would buy another new engine or body style for it's first year. My aux fuel pump went south with 65K miles where my 03s pump is still doing its thing with three time the milage. And I'm unsure what the service will cost for the DPF when it is full of ash?
We have no crystal ball here but a wealth of past experience. So how many miles will be trouble free........who knows, do a lot of reading here about general information and your model type and year. Remember it's new.
Jump62
aka Paul