Menu navigation
You can use the thumbwheel and buttons 1 to navigate through the menus.
▷ Turn the thumbwheel: select a menu item.
▷ Press the arrow buttons: change between
fields.
▷ 
Press the button: activate the
menu item.
See also:
Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if necessary. ...
Maintenance and repairs
Advanced technology, e.g., the use of modern
materials and high-performance electronics, requires suitable maintenance and
repair methods.
Therefore, have this work performed only by a
BMW cent ...
Switching off
The system can be deactivated as follows:
▷ Press the button.
▷ Switch off the ignition. ...