SmartKey functions

See also:

Speed rating
The speed rating is part of the tire identification. It specifies the speed range for which the tire is approved. ...

Rear axle level control
The vehicle automatically sets the vehicle level at the rear axle. Rear axle level control ensures the best possible suspension and that the ground clearance remains constant even when the veh ...

The electronic guardian angel: PRE-SAFE has a preventive effect
Occupant protection in the new Mercedes-Benz R-Class begins well before an accident. The Mercedes-Benz invention PRE-SAFE is able to activate preventive measures reflexively when it recognises the ...