See also:

The M-Class also protects its occupants after a crash
As part of the POST-SAFE® functions, the new M-Class can activate a variety of systems which can contribute towards avoiding post-accident risks. After a more serious crash, the hazard warning lig ...

Panic alarm
► To activate: press button 1 for at least one second. An alarm sounds and the exterior lighting flashes. ► To deactivate: press button 1 again. or ► Insert the SmartKe ...

Rear seat head restraints
WARNING For safety reasons, always drive with the rear head restraints in the upright position when the rear seats are occupied. Keep the area around head restraints clear of articles (e.g. c ...