94 S 600, rear windows wont roll down
 

and when on a cold day sun roof takes forever to roll back. on a warm day its like new????

not sure about the rear windows but your sunroof problem may be due to an incorrect or lack of service with the correct MB grease. Eventually the slowing will get worse and worse and finally manefest itself as a cable or motor failure. The sunroof in a 126 is a major PITA to deal with and I would guess that the 140 would be even worse.

Can i service my sunroof with grease myself ????
 

Thanks

Yes. Its pretty easy. I would not reccomend using a generic grease though since it tends to make a mess of things.

where and how do i apply grease to sun roof?? 94 S 600
 

thanks