2008 Mercedes SLK-Class Owner's Manual - Page 179

Controls in detail Climate control Deactivating Press button P ( page 174) again. The indicator lamp on the button goes out. The previous settings are once again in effect. 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 interior. 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. i The cooling remains switched on. Windshield fogged on the outside Switch the windshield wipers on ( page 56). Turn air distribution control 3 to position a or Y ( page 174). Deactivating G Press button , ( page 174) again. 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 180) is activated, or press button P. 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 Briefly press button , ( page 174). The indicator lamp on the button comes on. 178