My passenger front and my driver side rear stop working. I check the switch and it works. The electric schematic shows a window relay. Does anyone know where it is located

According to the FSM for my 1985 300D (W123), the power window relay is behind the instrument cluster. However, the failure mode suggests a fuse, as none of the windows would work if the relay failed.. Passenger front and driver's rear run off of Fuse F4, as near as I can read the poor image in my CD-ROM FSM. The inside of your fuse box cover will also have this information.

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Man, it seems as though we just covered this issue earlier today.