See also:

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. ...

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 ...

The windshield wipers are obstructed
Leaves or snow, for example, may be obstructing the windshield wiper movement. The wiper motor has been deactivated. For safety reasons, you should remove the SmartKey from the ignition lock. ...