I am considering the TDI option, but two factors in particular cause me >concern:
>
>1. All mechanical diesel injection systems are famous for their reliability.
>Is this also true of the electronic injection system used by the TDI? >
>2. Has anyone lost a diesel engine due to the timing belt jumping the
>sprockets or outright breakage? If so, what are chances that VW will redesign
>the OHC drive to a gear or roller-chain drive both of which are durable,
>time-proven mechanical designs?
The VW diesel can easily go 300+K miles if serviced properly.
They will never change to a gear or chain, too heavy, too costly.
Timing belts, in my experience, are the biggest factor to long term VW diesel life.
BTW, everything on a TDI is very, very, very expensive to repair.
The injection pump can go several thousand dollars at the dealer, the glow plugs and injectors are equal to a small mortgage payment.
VWs are great cars till they break off warranty.