So, I usually buy parts from Pelican Parts, but they were out of stock when I needed a new regulator. I ordered the following part:
https://www.ecklersmbzparts.com/mercedes-window-regulator-manual-front-right.html
Is there supposed to be a plastic bushing that rides along the rail of the window slide? The picture of the part doesn't seem to show one, but I'm pretty sure that the one I removed had one in there (before I threw it away a month ago). The one I received does not have a bushing and the regulator rides metal-on-metal on the rail.
Does anybody know?