Hi, I have an 03 Passat 1.8t (everything stock) and I've been going crazy over this boost leak. I finally decided to plug the output side of the turbo and pressure test there. It seems there is air leaking into the engine block from the intake side of the turbo (I could feel air pressure coming from open end of throttle body). Also, I could hear oil dripping when I applied air pressure which leads me to believe a seal is broken and air is escaping through the oil line. Before I get a new turbo, I just wanted to confirm that this is the case.