MTUpower may have it right. I have now ordered the replacement as per the catalog - not even close and the 1996 E300 sliding jaw which looks similar to mine but also will not work - no way to attach the cable ends. So I went to the Mercedes dealer with my regulator and all the sliding jaws I had acquired. According to them, the jaw is not sold separately. You have to buy the whole unit for $399! We called a mechanic out from service and he verified that the sliding jaw is not replaceable. He pointed out how the cable pulleys are spot welded to the rail thereby making it impossible to replace the sliding jaw. I am thoroughly disgusted at the moment. I am about to go MTUpower's route.