I have an 1980 280SE W126 eruo spec. It has manual crank windows. The windows are not going up and down with the crank. Luckily the window is staying up, except 1/2 inch as it is a bit cool here in NY warmer than normal but not good weather to have a window down! I was wondering if the manual windows use the same sliding jaws? I figured that I would get the front and rear before tearing the door open so I do not have to drive around without the panel while waiting for the parts. Thanks in advance!

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Currently
1991 Mazda Miata 174000
1991 Subaru 189,000 Winter beater

got rid of:
1984 VW Vanagon 195,000
1976 350SE Euro 185,000 KM
1973 280SE 4.5 (boy do I regret that)
1980 280SE European W126 4 speed manual (miss it)
1989 BMW 735iL 119000 (good riddance)

I would imagine that you need to replace the window regulator. These wear out after awhile. Pretty straight forward replacement once you remove the door panel.

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Jim