Some of the characteristics users view as 'issues' are simply functions and features of the transmission management. A feature we need to get to know and understand, if we want to get the best out of the AT.
The issue raised by the OP is definitely built in to the programming.
Quote:
Originally Posted by Icarium81
Floor it and take your foot off, it's as dull and winter witted as any other automatic I've driven. It sits at 5 to 7k and just let's it wind down.
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Upshift suppression is not a 'problem' or weakness in the programming. The characteristic is simply made evident in how we drive and use the accelerator.
I remember the first time I came across it in my E39 540i, I made a fast kick-down overtake and rapidly lifted off the pedal to zero position, the 'box didn't change up... First thought was, "what's going on?" When you understand the function, that it is programmed to anticipate brake action in this situation, it makes sense.
In the same manoeuvre, simply lift off more slowly and/or not to zero position and it up shifts as expected... it's all in the foot control.