I'm aware of the pump/injectors problems on the 2.0 TDCI mate. I didn't think the 1.8 TDCI in the focus suffered so badly? The 2.0 TDDI in the mondeo was also less troublesome IRRC.

This is why I'm trying to steer him in the VAG direction! The 1.9 TDi is not immune from problems but does seem to last the distance better than most when looked after