Sorry for the delay....spent ALL day at the shop getting various things done.
Snowman, if you'll give me or email me your email address, I'll send you a pix that shows the door and the MB instructions for getting that panel off.
regarding that nut, at the shop, the tech just used a small socket (like the kind that fit on the end of the nut driver wrench) to fit into that little hole.
1985 300SD - 'Grace' (198K mi.)
2010 Honda Fit Sport
2013 Honda Accord Sport
1996 Lexus LS400 (Retired)
1995 Ford Contour SE (Retired)
1976 Porsche 914 (Sold)
1972 Datsun 240Z (RIP)