well...this all looks just too complicated....just bribe some friend working at BMW to somehow get it for you. transmission is not cheap thing to play with and there is a reason, there are hours of testing put in place by either zf and bmw, but still, there is no interest from bmw even keep it going for long, as they don't even recommend the oil change...they are at the end evil thinking
i have changed oil by dripping method unaware that it should be flushed with machine, and on top, there is a function in DISv57 called OIL CHANGE, which I am trying to figure what for and thinking it might be there for changing gears during oil change or maybe relearning the oil viscosity after the actual change? another function there is reset adaptations......
saying this, I think anyone wishing smoothing up and upgrade their tranny should start there....and then you can upgrade the software.....but first, change the oil and reset adaptations, me thinking.....
last thing: my transmission got damaged by actual oil change, not using the zf oil, not using flush machine, and not resetting up adaptations and using the oil change function in DIS....
good luck