In my 2002 X5, the driver's side window just started going up and down very slowly. Once that happened, I stopped operating it when it got back to the close position. I didn't want to end up with the window stopped fully or partially open, as I have had happen in my 3 series when the "comfort switch" went out. As I only cycled it once or twice, I'm not sure if the one touch was even operating correctly. I'm trying not to operate it prior to bringing it back to the dealer. Does this sound like the window regulator? IS it covered under Certified?