My 1999 SLK 230 has all of a sudden developed a problem with the roof raising and lowering. It does go up and down but if it is down I have to shut off the car and restart to raise it back up again, and the same for lowering it. Everything else seems to be fine but this could be an issue, well, it already is in my book> I looked for a discussion on this but did not find this exact problem. My apologies as a newbie if I somehow missed it. Thanks!