2006 Mercedes SL-Class Owner's Manual - Page 190

Controls in detail Automatic climate control i Press and hold button ,. The windows will open. The opening of the windows can be immediately halted by releasing button ,. At outside temperatures above 79°F (26°C) the system will not automatically switch back to outside air. Air conditioning The air conditioning (cooling) function is operational when the engine is running and cools the vehicle interior down to the selected temperature. In addition, the cooling function dehumidifies the air in the vehicle interior, thus preventing the windows from fogging up. Deactivating It is possible to deactivate the cooling function of the automatic climate control system. The air in the vehicle will then no longer be cooled or dehumidified. Press button 2 ( page 181). The indicator lamp on the button goes out. The cooling function switches off after a short delay. i Condensation may drip out 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 weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others. 189