Originally Posted by JCL

I have never used a reverse camera, so maybe I am missing something. I see the benefit of using it when you are lining up the hitch ball for hook up, but why would you want the camera on when you are backing up the trailer? Doesn't the trailer block your rear view?

On the E53, when the OEM wiring harness was installed for trailer lighting, plugging in a trailer disabled the rear PDC, to avoid the incessant beeping. You may have answered this in your response, as it sounds like the PDC and rear camera are wired together, so perhaps that feature is disabled on the E70.

Did the PDC volume adjustment shown in the owner's manual work?