See also:

Mercedes-Benz M-Class Owners Manual
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Cup holder in the rear seat armrest
Do not sit on or support your body weight on the rear seat armrest when it is folded down, as you could otherwise damage it. ► Fold down the rear seat armrest. Cup holder 1 is in the r ...

Text reader settings
Setting the text reader speed Select Vehicle by turning the COMAND controller and press to confirm. Select System and press to confirm. Select Text Reader and press to confirm. ...