I have an '81 280E with a '79 OM617 installed in it.
It has power windows. They all operate correctly, except when mobile. When mobile, the drivers window rolls down, but will not roll up, unless the car is stopped, turned off and the key turned back on. The other windows work fine when mobile.
I have searched on "power windows", but I seem to get a stack of posts, none of which I have found throw any light on my problem.

Would anyone have a suggestion on where I should start the diagnosis. I am a bit frustrated at present and can't think straight.

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.

Am no expert on power windows but have heard the switch is weak link in the system. Interesting that reboot from shutting the car off solves the problem, thats worth remembering. And are there any electrical relays involved that might be sticking?