Hi guys I have searched for this but no body has written a ffull on explanation of the symptoms, Audi a4 2.0tdi 170 version, was driving it yesterday and oil pressure light came on. I got it hhome but there was nno power and it made a wierd slurping noise as if you would slap a thick liquid to the floor, it's been said it could be the shaft or the turbo, any help would be great tnx