ok i greased and cleaned everything... the sunroof now closes smoothly and quite well but the drivers side still will not go up.... what should my next step be ... how do you take these things apart, i really don't want to break anything.

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1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it