See also:

Units of measure
To set the respective units of measure, miles or km for the odometer and ℃ or ℉ for the external temperature. The setting is stored for the remote control currently in use. ...

Mobile communication devices in the vehicle
Mobile communication devices in the vehicle It is advised that you do not use mobile communication devices, e.g., mobile phones, inside the vehicle without connecting them directly to the ex ...

Remove unnecessary cargo
Additional weight increases fuel consumption. ...