SmartKey functions
■ To unlock centrally: press the 
button.
If you do not open the vehicle within approximately 40 seconds of unlocking: • the vehicle is locked again.
• the theft deterrent locking system is armed again.
■ To lock centrally: press the 
button.
The SmartKey centrally locks/unlocks: • the doors • the tailgate • the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm that the vehicle has been locked. The audible signal can be activated and deactivated using the on-board computer .
When it is dark, the surround lighting also comes on if it is activated in the on-board computer .
See also:
Setting the center air vents
Center air vents
1 Center air vent, left
2 Center air vent, right
3 Center vent thumbwheel, right
4 Center vent thumbwheel, left
► To open/close: turn thumbwheels 3
and 4 to the right or ...
Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may
affect its safe operation, we urge you to
contact an authorized Mercedes-Benz Center
immediately to have ...
Reporting safety defects
USA only:
The following text is reproduced as required
of all manufacturers according to Title 49,
Code of U.S. Federal Regulations, Part 575
pursuant to the National Traffic and Motor
Vehicle Sa ...