RJ: Thanks for reigniting my passion for this topic. I am also suffering as I beg to disagree - this lag is still present!
Although I have vehemently argued in the past that some sort of purposeful adaptation routine, that attempts to intelligently modify the DCT software to the user driving style, absolutely does not exist, my lag has grown from truly imperceptible to clearly present, annoying and bad enough to be borderline unsafe at times. It can be particularly bad under circumstances which also under prior software versions could cause lag. Medium, even speed, perhaps in the 40-60 mph range, gentle to medium (street level) braking, then followed by a medium throttle applied rapidly and immediately after letting off the brake. I've experienced lag which can be about 1 full second. The car simply feels as if it is completely ignoring the throttle application (and it really is).
What can we do to get some resolution to the issue? I'm long off or my factory warranty and also had a terrible go around with BMW NA not taking care of an issue that occurred just under 50k miles but ended up at the dealer at around 50,030.
Can we revisit the issue with the NHTSA? Look for a lawyer to take a class action? Letter writing campaign?
The DCT continues to amaze me with its performance, character and adjustability but as I have said prior this lag issue is like the giant pimple on the nose of the supermodel. Well of course also not covered by this analogy is that this situation is borderline or perhaps even definitely dangerous.
Are others continuing to suffer from this lag?