i need to fix the sunroof, when i push the relay no noise no movement i guess i should figure out where the motor is, WHERE IS IT? my stupid a/c doesn't work rightblows half *** warm air and drains gas like i cut a hole in the line(but i didn't), and need to locate and know the name of the center triangle vent plastic peice on the w201 where the sunroof and other two relays go?

 

The sunroof motor is located in your backtrunk at your left side. Remove the plastic-sealing and you will find it.
I experienced the same problem as you describe with the sunroof on my old 190e. But in my case the cablewire that goes from the sunroof-motor where broken.

good luck