I have a B5.5 Passat 1.9 PD 130 AWX, 157k now, never misses a beat, and a Mk 4 Golf 1.9 PD 115 AJM - the baby of the fleet at only 51k miles after 23 years from new...imported it brand new back in 2000 from a main VW dealer called Grimm in Hamburg. Back in the days when you could bypass the whole UK dealer network and save a fortune as UK prices were silly compared to the rest of Europe.
Full UK spec car, drove it out the Hamburg showroom. 1.9 PD....bulletproof, and before diesels got silly - only a simple EGR....no DPF or adblue, swirl flaps etc.
They map nicely too.
Keep oil topped up and changed every 5k...you just can't go wrong.