Mercedes-Benz M-Class Owners Manual

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Useful information
This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences ...

Before changing a fuse
  Park the vehicle and apply the parking brake.   Switch off all electrical consumers.   Remove the SmartKey from the ignition lock. The fuses are located in various fuse boxes: ...

Dialing a number from the phone book
You can use the mobile phone to enter new telephone numbers into the phone book (see COMAND). If your mobile phone is operational, you can select and dial a number from the phone book at any t ...