SmartKey

See also:

Increased vehicle weight due to optional equipment
This is the combined weight of all standard and optional equipment available for the vehicle, regardless of whether it is actually installed on the vehicle or not. ...

Changing the settings of the locking system
You can change the setting of the locking system in such a way that only the driver's door and the fuel filler flap are unlocked. This is useful if you frequently travel on your own. - To chang ...

2011 Mercedes-Benz S-Class Review by Scott Burgess
Luxury comes with nuances. Little things denote one fine ride: The look of the thread on the dashboard stitching, the smell of the leather, the crystal-like headlamps. Even the sound of the trun ...