SLK Kompressor Vert top problems closing.
 

hi everyone, i have a 1999 SLK KOMPRESSOR with a soft top.

the roof will not open (go down) if it does start it likes to jump and not go
very smoothly then i have problems getting it back up.

it has been to the dealer a couple times, ...they fix it...i go back home..
does it all over again.

has anyone had these problems before, or know of a solution to fix?

any help is great, thanks!