I have a 07 Audi A3 FSI - 70k miles. This very strange thing happens if I drive more than 3 hours straight. Almost like clock work on the third hour I get misfiring and and lose acceleration power for short moments and then it regains quickly back. After it happens for the first time it usual does it every 2 minutes or so until I get to my destination. I forget the exact code but misfiring was one of them. I did get into a fender bender a while back and the repair shop for sure threw a **** intercooler in there. Could this be the problem? I was thinking fuel pumps, sensors or filter but it only happens when the car gets to a certain temp. Maybe heat soak? Any help?