See also:

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. Observe the notes in the "Changing a wheel" sec ...

Changing the battery
You require a CR 2025 3 V cell battery. Take the mechanical key out of the SmartKey. Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery t ...

Crash-responsive emergency lighting
The interior lighting is activated automatically if the vehicle is involved in an accident. - To switch off the crash-responsive emergency lighting: press the hazard warning lamp button. or - ...