Removed the DV and it was C revision but no rips on rubber. As I had G revision, went ahead and changed it, but no luck. Loud whistling screeching noise and no power.
What else can it be? No errors on VCDS
Damn. I lose a hypothetical tenner then. Looks like some further investigation is required...
A screeching noise screams boost leak to me (pardon the pun). The intercooler hose connections are another weak link. Oil around a joint can be indicative of a bad seal.
If you get to the point where you've physically checked everything you can it might help to do some logging with VCDS. This goes further than the usual fault code troubleshooting. Often there's a fault or two that don't actually throw a code - so live data logging can tell you more.
@Pudding & @Dan_FR both know their stuff with logging, and can hopefully tell you the specifics.
NOTE... Can somebody properly tag Kev and Dan for me please, I'm yet to find a way of doing it on Tapatalk. Cheers :)