On my 99' E320 my sunroof recently would not close. After some jiggling of the switch, it finally closed. My local MB mechanic said the switch is going bad. Since this is part of the whole dome light assembly its expensive! I wanted to inspect the switch and see if cleaning the contacts would help. I removed the clear lenses in the dome light, and tried a few different methods to release / remove the dome light assembly. What is the trick??!!