I wanted to bring this topic back up because I am afraid it is happening to me. I also posted on the MB forums, do I dare take it to the dealer ? It doesnt happen all the time and it is very hard to replicate. Also who will be the first to say this could be a direct result from going hard with my renntech pulley and no tune ??? Kinda worried, I am under warranty till next summer or 15,000 miles I don't drive it in the winter so that gives me 2 and 1/2 months to figure it out or to fit with the dealer and have them replace my super charger lol IM SCREWED