I have a 2007 GTI with DSG. The car gives a noise and vibration when the temperature is 10 degree C or so and the transmission is in neutral. By in Neutral, I can either put it in N (at any speed, even if I intentionally put the car in coasting), or if I'm at a red light and the gear box in N or D but with my foot on the break). When the weather is cold (say below 5 degree C) or hot (above 20 degree C) then there is nothing obviously wrong. The car still drives fine. The problem has been with the car for a year or so now. I tried to went to the dealer once, but the symptom doesn't reveal so I can't do anything. Maybe some one here can give me some insight? Thanks.