See also:

Cleaning the steering wheel and gear or selector lever
Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes-Benz. ...

Activating/deactivating climatecontrol
Important information WARNING   When the climate control system is deactivated, the outside air supply and circulation are also deactivated. Only choose this setting for a short time. O ...

Problems with the cooling with air dehumidification function
When you press the button, the indicator lamp in the button flashes three times or remains off. You can no longer switch on the cooling with air dehumidification function. Consult a qualifi ...