Activating/deactivating pre-entry climate control using the button
WARNING Danger to life due to exposure to extreme heat or cold in the vehicle
If people, particularly children, are exposed to extreme temperatures over an extended period of time, there is a risk of serious injury or danger to life.
Never leave persons, children in particular, unattended in the vehicle.
Requirements
The ignition is switched off
The vehicle interior can continue to be air-conditioned for up to 30 minutes, e.g. if the journey is interrupted.
To switch on/off:
press the top or bottom section of rocker switch 
. The specified temperature for pre-entry climate control corresponds to the temperature most recently set on the climate control operating unit.
The red or blue indicator lamp on the 
button will go on or off.
The colours of the indicator lamp have the following meanings when the ignition is switched off:
Blue: cooling activated
Red: heating activated
Yellow: departure time preselected