I have the same issue with left side a bit loose and the right side stopped moving but I can hear motor turning. I pulled mine apart and found the motor also loose when you take off the housing, but it looks like the housing should keep in in place tight enough but before trying the epoxy fix it looks like the gears are a bit worn in the housing, does anyone know if the motor or motor housing parts are available or do you have to buy the whole mirror assembly? There is a repair kit mentioned in RealOEM wesite (LEFT MEMORY DRIVE REPAIR KIT 1 67138381997 $188.25
04 RIGHT MEMORY DRIVE REPAIR KIT 1 67138381998 $188.25) but it does not look like the motor or housing.

Anyone know if parts are available? If not what type of epoxy should I use?