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" ...

High-beam flasher
To switch on: turn the SmartKey in the ignition lock to position 1 or 2 or start the engine. Pull the combination switch in the direction of arrow 3. ...

Windows fogged up on the outside
Switch on the windshield wipers. Press the button repeatedly until the or symbol appears in the display. You should only select this setting until the windshield is clear again. ...