Took me S3 in for service today, not had it long, happy with service, but bad news, makes a right noise on start up, slight rattle on tick over, been told oil feed on top of engine and sump need dropping, needs sorting asap, could cause alot of trouble, for as time goes on, matter just gets worse, comes down to previous owners not letting turbo cool down, one cam sensor is playing up related to this matter, anybody come across this and how much would it cost to repair, their getting back to me with price , just picking brains, thanks