Restoring the factory settings
Press the 
and
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice.
See also:
DOT (Department of Transportation)
DOT marked tires fulfill the requirements of
the United States Department of
Transportation. ...
Opening
You can open the trunk lid/tailgate
automatically using the SmartKey or the
handle in the trunk lid/tailgate.
•► Press and hold the button on the
SmartKey until the trunk lid/tailgate
...
2009 Mercedes-Benz CL-Class Review
Sometimes, being the only car of a particular type or price can put you in a
lonely place — lonely enough that automakers usually avoid it, preferring to
make their own copy of what everyone else ...