2006 Mercedes SLK-Class Owner's Manual - Page 188

Controls in detail Climate control Air conditioning The cooling function, only operational when the engine is running, cools the vehicle interior down to the selected temperature. The cooling function also dehumidifies the air in the vehicle interior, thus preventing the windows from fogging up. Deactivating It is possible to deactivate the air conditioning (cooling) function of the climate control system. The air in the vehicle will then no longer be cooled or dehumidified. Press button 9 ( page 179). The indicator lamp on the button goes out. The cooling function switches off after a short delay. Activating Moist air can fog up the windows. You can dehumidify the air with the air conditioning. Press button 9 ( page 179) again. The indicator lamp on the button comes on. The air conditioning uses the refrigerant R134a. This refrigerant is free of CFCs which are harmful to the ozone layer. i Condensation may drip from underneath the vehicle. This is normal and not an indication of a malfunction. Warning! G If you turn off the cooling function, the vehicle will not be cooled when the weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others. 187