A friend told me he heard that the 1.8T are prone to clogging their oil pickup tube and oil pump.

a) Is that a known issue for high mileage 1.8T?
b) Is it advise to change the pickup tube and the oil pump?
c) What is involved to do the job?

 

This is true. There's a sticky at the top of the B5 forum containing info on buying the parts.