Larry:
I had the Windshield replaced on mine a while back and tried out my new digital camera. The installer used a cardboard shim - didn't need to remove the wiper. Here are the pics on the shim process (right about the time the camera battery died, so I don't have the shots of him using the electric caulking gun or placing the glass
).
1) Removing the trim retaining clips on one side so glass can be removed. Damaged glass area is from a large chunk of metal which fell off a car in front on the freeway.
2) Clips removed - re-attached with rivets later
3) Removing the lower windshield trim
4) Cutting out the lower windshield seal
5) Cardboard shim in place, ready for tape
6) Cardboard shim taped and pulled forward, ready for glass placement.
A detail tip: If you want to replace the white 'Daimler' sticker from the detailer, get the sticker before you do the windshield. Have the glass installer place your damaged glass on the bench, put down some towels, and lay the new windshield on top of the old one. Line up the new Daimler sticker over the old one, and apply. Can't help with the blue factory inspection sticker, however, as there are no replacements for those, according to the dealers.
Also, according to the installer, an electric caulking gun and uniform bead were essential to a leak-free replacement windshield. He used the PPG glass with the factory star from the dealer. PPG has proven to be very soft and prone to pits when I had my C230 done several years ago. I wanted Sigla or Sekurit, but he spent a week trying to find these brands, and they weren't available in LA or Orange county at the time, except as used items. PPG now makes the MB factory glass, and the other 2 brands are very hard to find, apparently.