Hello guys. From 3 days am happy owner of 2007 Audi A4 2.0T Q. The car have 95k miles on it and everything was ok to yesterday. First I wanna say sorry for my poor english. Yesterday start the engine wait 10 min i go to my job. But I saw while am driving how rpm arrow bouncing up and down around 1500-2000 rpm. And shake around 100 rpm up and down. I have about 30 min to get my job. A 10 before I get there the problem is gone. Please help me. I hope is nothing that will cost a lot of money. Thank you.