See also:

Panic alarm
To activate: press button 1 for at least one second. An alarm sounds and the exterior lighting flashes. To deactivate: press button 1 again. or Insert the SmartKey into the ign ...

SmartKey battery
Important safety notes It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. WARNING   Batteries contain toxic and c ...

Convenience opening feature
You can ventilate the vehicle before you start driving. To do this, the key is used to carry out the following functions simultaneously: - unlock the vehicle - open the side windows - ope ...