Thread: 6MT Notes
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      05-07-2023, 09:24 PM   #2
Squidget
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Drives: 2023 G87, 2011 E90 335i
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Quote:
Originally Posted by zero21 View Post
Has anyone noticed how much easier it is to have a smooth shift in "Efficiency" mode vs anything else? What programming is taking place to make the manual transmission so much jerkier by putting the engine into any other mode?
Hmm. There's no computer control over the clutch/gears/layshaft/etc, AFAIK. Nor, I think the CDV, which is a simple hydraulic fitting.

So maybe it's RPM management? The ECU is probably more sensitive to pulldown/pullup of RPMs when the clutch is biting. It's feathering the throttle to minimize shock. Just guessing.

I guess it's maybe also physically possible the e-diff is deciding to slip if it senses a big delta between the driveshaft RPMs and the rear wheels. But I don't know if e-diffs can actually slip to 0% on both rears at the same time.

Totally guessing TBH.
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