Question about 2007 BMW 750Li Sedan

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1990 BMW 750il Auto Transmission Switch Problem

I have an issue with my 1990 BMW 750il automatic transmission auto/manual switch wanting to disengage from running on auto to manual after 16 seconds of driving. Each time I move the switch to auto, it seems like it would default to manual mode. Can anyone provide some input?

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Try clearing computer of fault codes "trans program" , first disconnect battery (-) first then (+) cover battery with towel to prevent (arcing) then using a long screw driver clamp (using vice grips) terminals to screwdriver (wait 1 hour) this will clear computer of fault codes also make sure key is in ignition to position (2) . After on hour replace terminals on battery (+) first then (-) computer will read "PPPP" reset time , then start engine run for (5) minutes then shut off remove key your car should run OK after that . . . JJR '91 750il

Posted on Jul 19, 2012

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Have your bmw dealers check switch it might need to be replace.

Posted on May 08, 2009

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