The rear doors should have switches for the windows. The front doors are only done from the center console. If the door switch operates the window, you know for sure the switch in the center console is bad. If it doesn't, you may have wiring issues or a dead window motor.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)