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      03-13-2013, 12:49 PM   #16
swartzentruber
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Drives: 2011 E90 M3
Join Date: Oct 2008
Location: Chicago NW suburbs, IL

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Quote:
Originally Posted by swamp2 View Post
Lag is typically observed in D4 for me.
I was going to ask what you considered lag, but reread your post, and found your pretty good description. I've noticed that somewhat too, though I've always attributed that to DCT wanting to not downshift aggressively to save gas, not lag. If you don't brake hard, it seems like it will stay in 7 very long, so once you hit the gas, it has to downshift a lot of gears. I've noticed if I brake more aggressively, it downshifts quicker, and I don't see the issue (but that's a workaround). I'm not a DCT expert, but would 7 and 3 share the same clutch, and if it has to do that shift, it's somewhat slow? I don't think I've ever had my software updated, so I have no experience to compare to.
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2011 Jerez Black/Fox Red E90 M3 DCT, ZCP, ZCV, ZCW, ZP2, BMW Apps
2004 VW R32 (track car)
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