Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key.
•► Open the driver's door.
•► Close the front-passenger door, the rear
doors and the trunk lid/tailgate.
•► Press the locking button.
•► Check whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs by hand, if necessary.
•► Close the driver's door.
•► 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 clockwise as far
as it will go to position 1.
•► Turn the mechanical key back and remove
it.
•► Make sure that the doors and the trunk lid/
tailgate are locked.
•► Insert the mechanical key into the
SmartKey.
See also:
Important safety notes
DISTRONIC PLUS regulates the speed and
automatically helps you maintain the
distance to the vehicle detected in front. It
brakes automatically in order to avoid
exceeding the set speed.
On lo ...
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical
key.
Open the driver's door.
Close the front-passenger door, the rear doors and the tailgate.
Press the locki ...
