See also:

Notes
At high temperatures, the charge function of the mobile phone can be limited where appropriate and the functions are no longer executed. When the mobile phone is used via the vehicle, ...

Remove attached parts following use
Remove auxiliary mirrors, roof or rear luggage racks which are no longer required following use. Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption. ...

The concept
The system issues a two-phase warning of a danger of collision at speeds above approx. 10 mph/15 km/h. The collision warning is available even if cruise control has been deactivated. It resp ...