Unfortunately, there is no way to inspect the oil chain without taking off the oil pump or crankshaft sprocket.
If you meant is there a writeup, yes there is:
background info: http://www.myturbodiesel.com/1000q/b5/oil-pump-failure-passat-tdi.htm
procedure:http://www.myturbodiesel.com/1000q/b5/oil-pump-Passat-TDI-replacement.htm
If you meant is there a writeup, yes there is:
background info: http://www.myturbodiesel.com/1000q/b5/oil-pump-failure-passat-tdi.htm
procedure:http://www.myturbodiesel.com/1000q/b5/oil-pump-Passat-TDI-replacement.htm