2006 Mercedes CLS-Class Owner's Manual - Page 207

Controls in detail 4-zone automatic climate control Windshield fogged on the outside Maximum cooling MAX COOL If the left and right air distribution controls as well as the airflow volume control are set to U and there is a high need for cooling, the display "MAX COOL" appears in the front and rear display. This provides the fastest possible cooling of the vehicle interior (when windows and tilt/sliding sunroof are closed). Air recirculation mode Switch to air recirculation mode to prevent unpleasant odors from entering the vehicle from the outside (e.g. before driving through a tunnel). This setting cuts off the intake of outside air and recirculates the air in the passenger compartment. Warning! i Keep this setting selected only until the windshield is clear again. Switch windshield wipers on ( page 54). Press button U ( page 198) or ( page 199). The indicator lamp on the button comes on. AUTO appears in the display 4 ( page 198) or ( page 199). The air volume and air distribution are adjusted automatically. If the automatic mode of the climate control is switched off: Turn air distribution control 1 and 7 to a or Y ( page 198) or ( page 199). G Fogged windows impair visibility, endangering you and others. If the windows begin to fog on the inside, switching off the air recirculation mode immediately should clear interior window fogging. If interior window fogging persists, make sure the air conditioning ( page 209) is activated, or press button 0. 206