I know I can downgrade/upgrade the software to kick it into Euro mode and get the split screen back - I am trying to avoid that though as my dealer seems keen to fix the coding issue if a correct means of doing so with the unit in US mode exists. I was quite surprised they held onto the car for a full day just trying to figure this out even checking the wires behind the dash.

As I noted in my first post somebody once mentioned something about special coding that had to come from Germany but I can not now find that info. I figured I could provide that info to the dealer to point them in the right direction of getting this problem officially sorted - it works correctly in new X5s from the factory so I don't see why it cann't work for retrofits. Either way they'll get a 5 for effort on this visit.