B7 A4 TDI help

[TL1000R]

I've been offered a B7 A4 cab with the 2.0 TDI 140 engine and am looking for any advise on things to look out for. I understand that these may have an issue with the oil pump but am not sure if this covers all cars or a certain range so any advise would be very welcome. Is there a way of checking if a particular car will have this problem?

Also any other things to watch out for?
It's a 2 owner car with just over 100k on the clock, manual and seems clean & a good price but don't want to buy a timebomb.