Enabling operation in the rear
Only possible via the iDrive in the front.
1. "Settings"
2. "Allow rear control"
3. Select the desired priority.

See also:
Malfunction
A Check Control message is displayed.
On the Control Display, the areas in front of and
behind the vehicle are shaded. PDC has failed.
Have the system checked.
To ensure full operability:
...
All around the headliner
1 Emergency Request
2 Panoramic glass sunroof
3 Indicator lamp, front
passenger
airbag
4 Reading lamps
5 Interior lamps ...
Remove unnecessary cargo
Additional weight increases fuel consumption. ...
