See also:

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. ...

Useful information
This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific diffe ...

Even more agile: sports suspension and Dynamic Handling package as an option
In addition to the standard-specification AGILITY CONTROL suspension, the C‑Class offers two other options for adjusting the suspension's characteristics in line with drivers' personal prefe ...