I started this thread with the purpose of determining if the mirror camera was a user-adjustable item. Ultimately I just decided to live with it, as I don't use the overhead view that much anyway.

This week I had BMW install the towing package. Fairly obviously they 'updated' my cars' programming, as I now have a few more choices during phone calls (hold, conference, keypad dialing from the in-call screen), etc. I knew the car would need coding after having read these forums, I didn't know I'd get a software upgrade.

And, magically, the right side camera is displaying correctly. The only change was the programming. I checked the receipt, and was only charged for the towing parts/labor, no mention of even touching the camera. (I asked service about it before this installation and got blank stares, so I don't think they go around checking and adjusting the cameras for fun).

I think the computer, when upgraded, 'fixed' the wonky display angle in the view itself. It sounds distinctly odd, but it's the only explanation I've got. It's perfect now.

Weird.