See also:

Issuing a warning
If the vehicle begins leaving the lane and a lane marking has been detected, the steering wheel begins vibrating. If the turn signal is set before the lane is changed, a warning is not issued. ...

Priority options
The driver has priority The source selected via iDrive in the front is output on the vehicle loudspeakers and can be selected but not operated from the rear. Other audio or video sources ...

Operating from the inside
Operating from the inside Via the button for the central locking system. If the vehicle has been locked from inside, the fuel filler flap remains unlocked. If an accident of a certain severity ...