I am new to this forum (used to be part of Bimmerforums but was pointed towards here).
I purchased my 2005/05 BMW E64 645ci Convertible last week - I LOVE IT!
Just have one problem with it unfortunately...the passenger side window goes up and down really slowly compared to the driver side. It sounds as though the rubber may be really dry and the resulting friction causing it to raise and drop really slowly.
I would really appreciate it if somebody can please advise me on what to do?
I will post up some photos of the car in due course.