2010 Mercedes E-Class Owner's Manual - Page 160

158 Climate control system Air conditioning The air conditioning is operational while the engine is running and cools the interior air to the temperature set by the operator. In addition, the air conditioning dehumidifies the interior air and helps prevent window fogging. air volume and air distribution are adjusted automatically. In automatic mode, cooling with dehumidification is switched on. This function can be switched off if necessary. G Warning! Controls in detail G Warning! If you deactivate the air conditioning, 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. If you deactivate the air conditioning, 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. Dual-zone automatic climate control X i Condensated water may drip out from underneath the vehicle. This is normal and not an indication of a malfunction. The air conditioning uses the refrigerant R134a. This refrigerant is free of CFCs which are harmful to the ozone layer. Deactivating It is possible to deactivate the air conditioning. The interior air will then no longer be cooled or dehumidified. X Press button ¿. The indicator lamp above the button goes out. The cooling function switches off after a short delay. Set the desired temperature (Y page 159). X Activating: Press button Ã. The indicator lamp above the button comes on. The air volume and air distribution are adjusted automatically. X Deactivating: Press rocker switch F or G (Y page 153). or X Press button ¬ or button Ù (USA only) The indicator lamp above button à goes out. 3-zone automatic climate control X Activating Moist air can fog up the windows. You can dehumidify the interior air with the air conditioning. X Press button ¿. The indicator lamp above the button comes on. Set the desired temperature (Y page 159). X Activating: Press button Ã. The indicator lamp above the button comes on. The air volume and air distribution are adjusted automatically. X Press rocker switch G (Y page 155) up or down and select the desired level. The automatic air conditioning settings: FOCUS Air flow high/air distribution via the center and side air vents MEDIUM Air flow medium/air distribution via the center and side air vents DIFFUSE Air flow low/air distribution via the center, side and defroster air vents Automatic mode When operating the climate control system in automatic mode, the interior air temperature,