See also:

Automatic locking feature
The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are turning at a speed of more than 9 mph (15 km/h). You could therefore be locked out when: • ...

DEF
Important safety notes For BlueTEC vehicles only. DEF is a non-flammable, non-toxic, colorless, odorless and water-soluble fluid. Rinse surfaces that have come into contact with DEF immediately ...

Body: high energy absorption in the event of a front impact
The extremely robust occupant compartment of the Mercedes-Benz M-Class, together with the front and rear deformation zones, forms an effective basis for the occupant protection system. The focus o ...