How do you access the sunroof motor in a 1984 Mercedes 300 SD?

The sunroof motor on my 83 300SD is in the trunk on the driver's side. Just pull back the carpet panel, and it is right there. You may not know it, but you can manually pull it open and shut through that motor also, just in case it decides to act up on you in a rain storm! haha! I hope this helped you out. There are ways of breathing new life into those old motors also, as long as you can feel the motor getting hot, it is still working. Just regrease the gears, because they are often just locked up, and this goes for the window motors as well.