See also:

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 ...

Engine
Display messages Possible causes/consequences and Solutions The coolant level is too low. – Add coolant, observing the warning notes when doing so. – If coolant needs ...

Restoring the factory settings
► Press the buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...