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 ...

Comfort tuning
In Comfort mode, the driving characteristics of your vehicle are more comfortable. Select this mode if you prefer a more comfortable driving style, but also when driving fast on straight roads ...

Checking the coolant level
Only check the coolant level when the vehicle is on a level surface and the engine has cooled down. Turn the SmartKey to position 2 () in the ignition lock. On vehicles with KEYLESS-GO, press ...