What do you suggest lubricating with? I have been hesitant to spray stuff into my door. I thought about using WD40, but I don't want it to seep past the cylinder and onto the back side of my interior door panel.
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K