Thread: DCT tranny
View Single Post
      11-23-2012, 01:06 AM   #8
Major General
SamS's Avatar

Drives: 2018 X3 M40i
Join Date: Jul 2010
Location: Dallas, TX

iTrader: (0)

Originally Posted by RPM90 View Post
Plus, the ZF can do multi gear downshifts and skip gears whereas the dual clutch trannies can not. In the ZF if you go from 6th to 3rd it will only need to do one shift and you're in 3rd. The dual clutch needs to shift down each gear even though it does it very fast. The ZF feels faster on downshift because it can skip.
Upshifts are just as fast with the sport ZF as dual clutches, and that's per ZF who also make the DCT.

This is simply untrue. BMW DCT can downshift without going through each gear. You give it judicious acceleration, and hold the downshift lever. It can go directly from 7th to 4th, no problem.
2018 X3 M40i - current
2016 M3 - sold
2013 ActiveHybrid 3 - sold
2012 M3 coupe - sold