I know you guys in the states probably don't have much experience with the old oil burner engine but I was wondering if some of you kind gentlemen would help me with some advice ? When the turbo is spooling up I can hear what can only be described as a slight blowing noise which then dissappears when I bury the throttle. I don't know that much about Audi's but I've got a nasty feeling it may be a hole in one of the heavy duty rubber hoses connected to the turbo unit, maybe from the intercooler or something. I can't actually see the pipes because it looks like I have to take the front bumper and intercooler off etc. Please help !!!