General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged.
Check the battery in the
SmartKey and replace it if necessary.
Unlock the driver's door using the
mechanical key.
Lock the vehicle using the
mechanical key.
Have the starter battery and the
battery contacts checked at a qualified specialist workshop.
If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.
See also:
Genuine Mercedes-Benz parts
All Mercedes-Benz Centers maintain a supply of genuine Mercedes-Benz parts for
necessary service and repair work. In addition, strategically located parts delivery
centers provide for quick and re ...
R 300 CDI BlueEFFICIENCY: low fuel consumption MPV
As with all BlueEFFICIENCY models from Mercedes-Benz, the R-Class features a
whole range of measures to reduce fuel consumption. In addition to the
direct-injection diesel engine and the low-frict ...
Driving systems
Display messages
Possible causes/consequences and
Solutions
Based on specific criteria, ATTENTION ASSIST has determined that the
driver is tired or paying less attentio ...