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:
Activating/deactivating Lane Keeping
Assist
You can use the Lane Keep. Asst. function
to activate/deactivate Lane Keeping Assist or Active Lane Keeping Assist.
•► Press the button on the
steering wheel to select the DriveAssist
me ...
Search & Send
"Search & Send" is a destination entry
service. You can find further information on
"Search & Send" in the separate COMAND
operating instructions. ...
Cleaning the steering wheel and gear or
selector lever
•► Thoroughly wipe with a damp cloth or use
leather care agents that have been
recommended and approved by Mercedes-
Benz. ...
