I found a way to solve this problem slk window leak

1. Open the door panel
a. Find the three philips screws that hold on the slk panel. One under the SRS panel (it wont go off) and two hidden inside the pull handle that prys apart and pops off easily.
b. remove three other small plastic plates.
c. door pops off with a little tug against a number of friction studs.
2.disconect the mini speaker wire and the wire linkage to the door opener by popping apart.
3.leave the plastic sheeting alone on the inner door but notice the two 10mm set bolts at the left and right end of the door with big washers .These are the stops you are looking for. Note if they are loose or show signs of slipping. Mark their position carefully. Loosen and raise your 2mm and tighten. then reset the window up and it will travel further. Slam door . correction close door carefully to make final adjustments and retighten set bolts .
4. Reassemble .
5. Door may close with a little more resistance until rubbers learn new setting.

Any comments from real mechanic appreciated as this is just how I did it on my slk.

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EricJ Bwana Benz