Mercedes-Benz R-Class

R-Class is a 4-door, up to 7-passenger luxury sport-utility.
See also:
Engine number
Emission control information plate, including the certification of both
federal and Californian emissions standards
Engine number (stamped into the crankcase)
VIN (on the lower edge of the ...
System self-test
After you have switched on the ignition, the
system carries out a self-diagnosis.
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
• 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.
...
