ahhh....the famous window regulator failure conspiracy that bmw has so much in stock of for some reason =x best thing i did for my self was do it my self! the dealer wanted 300 bucks for a regulator, and 2 hrs of labor....just get the regulator on ebay its about $80.00, and i installed it in under 30 minutes. ( make sure to plug in the harnesses correctly before you wonder what happens and you have to go on a forum and wait for advice, and not have your door locks, power window or park assist mirror not work for two days until i realized what the problem was!%^&$% ) ....but other than that it came out greattt!