[SweetBMW]

Start or get ista, and do adjustment of dsc unit.

i have ista,how i can do?

Do you have Ista-D or Ista-P?
With Ista D you go to Service Functions, then Suspension and look for DSC Options.
With Ista P you have to go to postprocessing (dont know the exact english name)

Dont have to use ISTA\P for this, if he had updated with ISTAP (which he hasnt) it would have done this job automatically. He updated with WinKFP