I've had 2 different problems with windows in my 190D's. One was the door switch, which would keep the console switch from working properly as well. The other problem was with the thermal overload protection on the window motor itself. I've been told that it's OK to bypass the thermal overload on the motor (by an electric motor repair guy).

If the switches check out, take a look at the thermal overload protection.

SteveM.

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'93 190E/D 2.5 Turbodiesel 5-speed (daily driver)
'87 190D 2.5 Turbo rustbucket - parts car
'84 Dodge Rampage diesel - Land Speed Record Holder
'13 Ram 2500 Diesel
'05 Toyota 4Runner