Soft top problem, 91SL

[Roger65]

This is my first post-great site here. I have a 500SL which I bought last August. The car is a dream come true, except for one thing.

The top on my 500SL will close fine automatically, but when I pull back on the switch to open, it pulls the top tighter against the body. It is as if the system does not realize that the top is closed. The top will close fine, but once the top is up, pulling the switch back or forward have the same result, I can hear the motor run and actually see the top being pulled against the windshield frame. I did a search on this site and it seems we have some good softtop gurus here, so I am hoping someone might have heard of this before.

Thanks,
Roger