Spent all afternoon & evening on the drivers door. Finaly got my clumsy fingers up in small space at the top of the door where the window died in the almost up position, got the clip, star washer, & the plastic washer off with only a few minor blood donations to the MB gods. Got the the actuator loose, Could'nt get it out, bolted the actuator back in place, took the motor off the actuator using the three small holes.(now I know what they are for) Took weather stripping out of the window opening in the door, took the front window track loose & got up high enough to get motor out past the crash bar.
It looks like the reason for the failure is one of the brushes is sticking. It looks like it is a brand new motor, very clean & very little wear on the brushes.
I'll work on that tomorrow.
Lou