BMW E70 from 9/2010 with MOST Bus AMP
One common complaint I see is no sound from the audio system and the Comfort Access system not working.
Check fuse F132 in the trunk It is most likely blown.
This fuse controls the Comfort Access and the Amp (because BMW)
Check for one or more shorted outer door handles causing this issue.
Nice, similar issue happens on F10 and F01 vehicles where the DSC (ABS) lights are on along with no communication to the DSC (ABS). One of the outer door handles blows a fuse shared with the DSC (ABS). I've seen some guys shotgun a DSC module and be in a heap of trouble.