Hi all Im Antony and have just bought an 04 A3 2.0tdi sport Loving the car so far. I am a bit of a car nut and love to tune and fiddle with them (cars). The one thing I have noticed on my A3 is the turbo whistle. Is this normal? It only happens under load, and I can not see excessive amounts of black smoke for the exhaust. Anyways, just wanted to say hi! Love the site and hope to be here for a good few years Cheers A!