Hello all, I am newly registered on the forum. I have learned much from reading different threads. I had this exact problem, actually the only problem I have had with the M3 to date. Took it to the dealer twice, first time I was told it was the fuse; picked it up, drove it for a few miles and still the same situation. Took it back to the dealer and they looked more carefully. I was told it was analogous to an inflatable balloon that had popped. The piece was replaced; it now works perfectly and I have had no further problem. Service advisor was Maurice Bryant at Performance BMW in Chapel Hill and I'm sure he could tell you the specifics...I hope this helps and let me know if you have other questions! Take care!