Releasing
Raise lever slightly, press the button and guide the lever down.
See also:
BMW Assist or ConnectedDrive
...
The concept
The iDrive combines the functions of a multitude
of switches. Thus, these functions can be operated
from a central location. ...
Switching off automatically
The system switches off and the LED goes out:
After approx. 160 ft/50 m when driving forward.
Above approx. 22 mph/36 km/h when driving
forward.
Switch on the system again if necessary. ...