Well, my car's problem is progressing typical with others on this thread. I borrowed a friend's PC and spent some time perusing my CD shop manual. I decided to leave the repair to MB. My dealer offered 50% warranty for the upper wire harness, and diagnosed the idle speed control switch ("closed throttle position switch" - #140-545-01-14)as the culprit. I thought that 50% warranty was honorable, considering the high mileage (109K)of my car. I did have a Starmark warranty transferred to me by the prior owner, but it expired at 100K. The PO bought the car from my dealer, so there was a connection.
I got the car back after a two-day wait for the parts. I drove straight home and barely drove it the next day. That brings us up to today, when with less than ten miles since the repair, the ASR light kicked on again.
I expect it will be the throttle actuator. I think I'll shop around. I'll keep you posted
1995 E320 Wagon Moonstone Grey/Parchment 106K mi.
2007 E63 AMG Graphite/designo 75K mi