 In June, 2014 I took my 2006 VW TDI with 112K mi to the dealer for a timing belt change.  I also needed a fuel filter change.  Did I ever get a shock - not just sticker shock!  When the service guy first called me it was to tell me my fuel filter was BLACK and that meant my injectors were shot.  He also said that with this model, this year car, that there was a 50/50 chance that the cam shaft and lifting arms would need to be replaced.  He explained that VW had designed these poorly with dissimilar metals and that they fail.  Sure enough - a bill to the tune of $4k.  So I sent 2 letters to the VW Customer Care center - I've never heard 'I apologize so many times in my life!  Run far and fast