2008 Mercedes CLK-Class Owner's Manual - Page 208

Controls in detail Automatic climate control Maximum cooling MAXCOOL If the left and right air distribution controls as well as the airflow volume control are set to U ( page 201) and there is a high need for cooling, the display "MAXCOOL" appears. This provides the fastest possible cooling of the vehicle interior (when side windows and tilt/sliding sunroof* or soft top 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 The air recirculation mode is activated automatically at high outside temperatures. The indicator lamp on button , is not lit when the air recirculation mode is automatically switched on. A quantity of outside air is added after approximately 30 minutes. Deactivating G Press button , ( page 201). The indicator lamp on the button goes out. 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 210) is activated, or press button P or 0. i The air recirculation mode is deactivated automatically: after 5 minutes if the outside temperature is below approximately 41°F (5°C) after 5 minutes if the air conditioning is turned off after 30 minutes if the outside temperature is above approximately 41°F (5°C) Activating Press button , ( page 201). The indicator lamp on the button comes on. 207