Vinceman,
That's the way mine works, too. You have to slam the top shut and check that it latches on each side. There are supposed to be two 1" square rubber pads (1/8" thick?) glued to the underside of the soft top lid. They protect the metal from the posts on the soft top frame.
Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both tops
1994 E420