See also:

Speedometer with segments
The segments in the speedometer indicate which speed range is available. DISTRONIC activated: One or two segments in the set speed range light up. DISTRONIC detects a vehicle in front: T ...

Problems with the SmartKey
Problem Possible causes/consequences and  Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged ...

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 ...