Im experiencing this problem too, But not when im driving I was thinking it may be due to my EGR not working properly due to my engine management light showin? I plugged a vag-com and the code showed up as the Egr I still havent cleaned it. Could this be bad for the engine and should i just buy a deleat pipe ?
I never got a log book with it only the green slip from the dealer! he only brought it a week prior to me purchasing it so the log book ain't come through yet. The dealer knocked off an additional 40 quid for the V62 and said it would be easier if I sent off for one?