The sunroof on my C250D (W202 body), is stuck closed. The motor operates, but only moves the roof about 1/2inch. When i move the switch to tilt, the back right corner lifts, but the back left corner doesnt move. the motor on the 202 is in the roof, near the int light, above the windshield. How do I get in to it?. Does the inner cover of the moving bit come off?. I tried pulling the headcloth down a bit but this didnt help. Thanks in advance for help. Great site you guys.