I just bought my 20th AE GTI 2 days ago, and where is it today? In the shop for 3 days. I was driving on the highway when all of a sudden I hear a noise like there is a huge hole in the engine and every time I press the gas a tremendous amount of air is passed through it. So I take back to the dealer and they tell me that my blow off valve is busted and they have to order a new one and it will take 3 days. I was pretty upset as the car only has 250 miles on it. The dealer offered me a free service visit for my trouble. Has anybody has these issues? And should I just go buy diverter valve and be done with it. Does the D/V void the warranty?