See also:

Registering satellite radio
Select Audio in the main function bar by sliding and turning the COMAND controller and press to confirm. Select Sat. Radio and press to confirm. Service information screen 1 Provid ...

Displaying service messages
Switch on the ignition. Press or on the steering wheel to select the Service menu. Press or to select the ASSYST PLUS submenu and press to confirm. The service due date a ...

SmartKey battery
Important safety notes It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. WARNING   Batteries contain toxic and c ...