I get an issue where my air con display goes black for a second or so randomly. No other lights go out and even the button LED's on the air con panel stay lit.

Dealer has had the car 5 times now, each coming back no fault found. Even though the car is under warranty, they now tell me that to do any further more in-depth investigations may lead to me having to pay if they can't find anything.

Is it likely that this is the same issue or is mine a faulty Climate Controller panel? Is the SIB North America only or Worldwide? Last one I took them about the transmission update they dismissed as NA only, but after several rants, 'found' one applicable to Europe. BMW customer service gets more like Ford every year