Hi, I have a 2002 TDI 138k and have the issue ( which seems to be quite often reported ) of power loss . If I rev past 3600rpm and hold it for more than a moment it stutters a little then the power reduces approx 50%. If I stop and turn the engine off then immediately on it's cured. My local garage has replaced the Pierburg presure converter , turbo inlet and the turbo with very little improvement . Alas I think they are guessing and just replacing parts which is getting expensive. The car runs fine- it's smokey on start up then it's fine . I'm located near Plymouth - maybe there's an A2 specialist somewhere nearby. Any ideas much appreciated .