2007 Mercedes CLS-Class Owner's Manual - Page 200

Controls in detail 4-zone automatic climate control Front defroster You can use this setting to defrost the windshield, for example if it is iced up. You can also defog the windshield and the side windows. The air conditioning switches automatically to the following functions: cooling on to dehumidify maximum blowing and heating power (depends on cooling temperature) air flows onto the windshield and the front side windows the air recirculation mode is switched off Windshield fogged on the outside i Keep this setting selected only until the windshield is clear again. Switch windshield wipers on ( page 57). Press button U ( page 192) or ( page 193). If the automatic mode of the climate control is switched off: Turn air distribution control 1 and 7 to a or Y ( page 192) or ( page 193). i Keep this setting selected only until the windshield or the side windows are clear again. Activating Press button P or 0 ( page 192) or ( page 193). The indicator lamp on the button comes on. Display 4 ( page 192) or ( page 193) is cleared. i If you have switched on the defrost function using the 0 button, you cannot make any other settings. Deactivating Press button P or 0 ( page 192) or ( page 193) again. The indicator lamp on the button goes out. Defrosting is turned off. The previous settings are once again in effect. i The cooling remains switched on. 199