I'm pretty sure thats the sunroof motor.

No diagram, but the first thing to test is to try jumping the motor to power, then there are some little contacts that sense where it is in its rotation, try separating or shorting some of them. Use very thin wire when trying to short them, so if there is a short circuit, your wire melts instead of the ones in the antenna.

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Ich liebe meine Autos!

1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete
1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday...
1981 Mercedes-Benz 300SD | Rear ended, retired in garage.
2009 Yamaha AR230HO | Das Boot

Excessive speeding? It ain't excessive till I redline!