Don't know -- too new for me! I'm still in the W124 chassis. In that one, the switch is in the overhead lamp holder, it pushes over and pulls down for a bulb change, and the sunroof switch is right next to the lamp holder. Never taken one out, though.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!