See also:

Requirements
Via the Control Display, set a language that is also supported by the voice activation system so that the spoken commands can be identified. Set the language. ...

Transmitting the settings
Your personal settings can be taken with you to another vehicle equipped with the Personal Profile function. For more information, contact your service center. Transmission takes place via: & ...

Remove attached partsfollowing 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. ...