Thread: Hard 1-2 shift
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Old 08-03-2006, 04:55 PM
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AzNMpower32 AzNMpower32 is offline
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Is this problem occuring when you're on a cold engine/transmission or if you've just driven uphill? I've attached an informative (kind of long) document that does explain some of the programming behind the adaptive transmission. I know its the ZF 6AT on the 5-series, but it's similar to our 5AT.

I know for some reason the X3s seem to have a more aggressive shift pattern and consequently it likes to run the revs higher in each gear as opposed to say, every other BMW. Maybe it's a way of compensating for the modest power....? I do agree the upshifts occur a bit later than I prefer for normal driving.
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File Type: pdf steptronic.pdf (150.6 KB, 1047 views)
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