2011 Mercedes CL-Class Owner's Manual - Page 259

Overview of climate control systems Automatic climate control control panel 257 Function : Sets climate control to automatic, left ; Sets the temperature, left = Sets the airflow, left ? Defrosts the windshield A Activates/deactivates airrecirculation mode i Notes/tips Activate climate control using the à rocker switch. The indicator lamp in the à rocker switch lights up. Set the temperature to 72 ‡ (22 †). Only use the "defrosting" function briefly until the windshield is clear again. Only use "air-recirculation" mode briefly, e.g. if there are unpleasant outside odors or when in a tunnel. The windows could otherwise fog up as, in airrecirculation mode, no fresh air is drawn into the vehicle. B Switches climate control on/ off C Switches the residual heat function on/off Use the residual heat function if you want to heat or ventilate the vehicle interior when the ignition is switched off. The "residual heat" function can only be activated or deactivated with the ignition switched off. D Switches the rear window defroster on/off E Sets the airflow, right Z Climate control