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      03-20-2016, 11:42 AM   #102
raleedy
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Drives: 2016 228i 6-speed
Join Date: Jul 2005
Location: Portland, Oregon

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Quote:
Originally Posted by XutvJet View Post
I can't weight in on the ZF 8AT, but my guess is the tranny ecu neuters torque (ie torque managment) until ATF fluid is up to temp. Lots of late model autos do this. Driving a cold automatic hard is very very bad.
From my experience with the F10/N20 combination, it's my impression that the ZF 8-speed transmission is clutched nearly all the time it's not actually shifting, even when cold. To me the implication is that a light foot is important mostly for the sake of the engine and turbo (high torque demand at low rpm) at low operating temps. Either way, it seems best to drive moderately until everything's warmed up.
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