Swapped motors with the motor from the 4G sunroof, and even worse (guess 5G motor is a little stronger). Guess I know why I got it so cheap....
Really pissed off now



Anyways, as I also purchased a 4G sunroof (plus assembly, minus motor) with a panel with much less rust on it, I decided to put that one back instead, I will treat the rust on this panel and then respray it.
Not sure what the issue is with the 5G moonroof, but I assume it's to do with the mechanism, and maybe needs a good greasing. I saw that was a lot of rust on the moonroof mounting brackets. Dunno if that would affect operation of the moonroof. As it's off the car, I'll look into maybe taking it apart and seeing if it's serviceable.
Anyone got any suggestions on where to start to get the moonroof sorted? Also, what grease should I use ?