Unlocking the driver's door (mechanical key)
If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered.
Take the mechanical key out of
the SmartKey.
Insert the mechanical key into the
lock of the driver's door as far as it will go.

Turn the mechanical key
counterclockwise to position 1.
The door is unlocked.
Turn the mechanical key back and
remove it.
Insert the mechanical key into the
SmartKey.
See also:
Adjusting the exterior mirrors
WARNING
Exercise care when using the passenger-side
exterior rear view mirror. The mirror surface
is convex (outwardly curved surface for a
wider field of view). Objects in mirror are
close ...
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 ...
Displays in the COMAND display
WARNING
Use of rear view camera can be dangerous if
you are color-blind or have impaired color
vision.
Only use rear view camera if you can see and
distinguish all colored guidelines shown by ...
