All, I had the jerky acceleration when shifting from 1-2 and 2-3 as well. Tried the reset but not much difference. I have 70k miles on my 2013 535i. I just changed the spark plugs (kind of a bitch getting to plugs 4-5-6 keep in mind), and now it's incredibly smooth.
Can't say definitively that the reason for the fix is from the plugs, but all I know is something has changed for the better.
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