2009 Mercedes SLK-Class Owner's Manual - Page 199

Controls in detail Climate control system X X Switch the windshield wipers on (Y page 88). Press button U12. The indicator lamp in the button comes on. Air distribution and air volume are adjusted automatically. Turn air distribution control to a or Y. 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. X A quantity of outside air is added after approximately 30 minutes. Deactivating: Press button , again. The indicator lamp in the button goes out. or X Maximum cooling MAX COOL MAX COOL is only available in vehicles with automatic climate control. If the air distribution controls as well as the air volume control are set to U and there is a high demand for cooling, MAX COOL is activated. MAX COOL appears in display c . This provides the fastest possible cooling of the vehicle interior (when retractable hardtop is closed). G Warning! 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 is activated, or press button y. X i The manually selected air recirculation mode is deactivated automatically: Rafter 5 minutes if the outside temperature is below approximately 41‡ (5†) Rafter 5 minutes if the air conditioning is turned off Rafter 30 minutes if the outside temperature is above approximately 41‡ (5†) Activating: Press button ,. The indicator lamp in the button comes on. Residual heat and ventilation With the engine switched off, it is possible to continue to heat or ventilate the interior for up to 30 minutes. This feature makes use of the residual heat produced by the engine. i The air recirculation mode is activated automatically at high outside temperatures. The indicator lamp in button , is not lit when the air recirculation mode is automatically switched on. i If you switch on the residual heat function when outside temperatures are high, only the ventilation will be switched on. i How long the system will provide heating depends on the coolant temperature and Z 12 Vehicles with automatic climate control 197