Hi guys,not had my audi long so still working my way round it but on fitting an n75h valve the other day i noticed oil depositsin the DV and the inside of the intake pipe! this got me thinking the turbo might be tired (just gone 100000miles, FVAGSH ) so i fitted a boost gauge and its only boosting to 0.5bar [>:]and unless im mistaken my UK 99.5 1.8TQ should go to 0.8bar.Car is standard apart from a filter.I changed the n75 back with no change.Any opinions greatly recieved