I have on occasion while in eco and comfor mode after driving very lightly for a bit, suddenly use half to full throttle, the car almost goes into 'neutral' (like a manual GB with clutch in while driving), where u have ur foot on the throttle, but the revs just build up with no movement for like 2 secs even and then suddenly the gear engages and the continues on..This I am not sure yet is an actual issue or just the 'confused' gearbox.
Ah! The Phantom False Neutrals or Box-full of Neutrals scenario !
I've only three times experienced this in 3000 miles.
1st occasion - After using LC 4 times in a row, after 10 mins cool down, pulled into my road, shifted from D into R to reverse onto driveway - no gear. Lots of revs, but car would not go backwards. Selected N-D-N, waited 2 secs, selected R again, and car moved backwards. Never been able to replicate this again.
2nd occasion - Intending to turn right across oncoming traffic, used paddles to downshift from 5 to 2, still rolling, tried to accelerate to turn R into side road - no gear - but half a second later, it selected a gear, and off I went after a mild heart attack. I *think* I paddle downshifted at *exactly* the same time as the gearbox did, so it jumped 2 gears down (on the same shaft) thus the delay in engaging. Never been able to replicate this again (To reduce the likelihood of this happening again, I now tend to downshift by pulling the lever into S, it kinda readily downshifts for me).
3rd occasion - Motorway in 50mph roadworks zone, part throttle. Roadworks ended, Lane 3 was available. Floored the throttle, it jumped down 2 gears, lots of revs, but seemingly didn't go anywhere. It seemed like a whole 2 seconds before the car picked up and accelerated with ferocity (sounds like your scenario above). Reviewing the on-board camera footage later, watching the speed display, there was a audible "slurring" of the revs (like slipping the clutch) while it changed gears and then acceleration. But the timecode showed that this was all under 1 second, although I was prepared to swear on oath in court, that at the time, it felt like a long 2 seconds. The speed display also confirmed an increase in speed during this "slurring", although not as ferocious as 1 second later. Further research confirms that the DSG box will, in this scenario, try to give you the "smoothest" change, as opposed to the "fastest" change. Not been able to replicate this again.
If you downshift while accelerating - it will slip the clutches to give you the smoothest change, watch the rev counter as you do this.
If you downshift while off the throttle - it will "snap" and give you the quickest change, watch the rev counter as you do this.
I guess if I had been in a manual car in scenario 3, I would have anticipated the overtaking/acceleration opportunity earlier, changed down in anticipation, and then when the moment presented itself, I would have had instant acceleration. Doing the same with the DSG would have yielded the same results, but the box does lend itself to being lazy, and maybe encourage less anticipation, if you had to stir the gears manually yourself !
