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1977 530i Automatic does not shift.


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My automatic transmission on my 1977 BMW 530i (zf 3hp-22) will not shift up through the gears when it is cold. After it has warmed up (5 minutes), it seems to work fine. I have changed the filter & put in fresh fluid but the problem persists. Does anyone have any ideas that might cure this problem. Is there a magic additive out there that I could try ? Any input on this problem would be greatly appreciated.



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  • 5 months later...

When you changed the filter, did you see two magnets at the bottom of the sump and if so, did they look like hedgehogs?

I had the same symptoms as you and now my Alpina gearbox is pressurising - forcing up fluid through the dipstick tube.

New gearbox is on order...

Best wishes,


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