See also:

General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. - Check the battery in ...

Styling
The 2012 M-Class retains many of the previous generation's styling cues, like a wide front grille and forward-swept C-pillars, but the new design looks more substantial and imposing. Contributing ...

Adjusting the rear seat head restraint angle
Adjust the head restraints so that they are as close as possible to your head. You can only adjust the two outer head restraints. X Pull or push the top of the head restraint until it is in the de ...