Sunroof Help!!!

[ML320Mommy]

Well my son opened my sunroof a few weeks back and low and behold it doesn't close all the way now. It gets close, about two inches. I went to the dealership and they tried the manual crank and could not get it closed. They said the motor may be going out...funny I can open it fine and when is attempting to close it's fine, but just doesn't get there. Noe the deflector, but a little black plastic peice was found.....any ideas? I just don't want it open for the weather here in Indiana.
TIA

[bigcatny]

There are a few small black plastic pieces attached to the mechanism for the wind deflector. They can break over time and something jammed in place can prevent the roof from closing. worth taking a look around up there.