See also:

Important safety notes
WARNING Make sure the tailgate is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsci ...

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 ...

Distance warning function (vehicleswith DISTRONIC)
This function provides a warning from a speed of approximately 20 mph(30 km/h), if: • for a period of several seconds, the distance to the vehicle in front is too short for the speed at which you ...