2008 Mercedes CLS-Class Owner's Manual - Page 194

Controls in detail 4-zone automatic climate control Warning! G i Keep the air intake grille in front of the wind- Deactivating shield free of snow and debris. Do not obstruct air flow by placing objects on the air flow-through exhaust slots below the rear window. Severe conditions (e.g. strong air pollution) may require replacement of the filter before its scheduled replacement interval. A clogged filter will reduce the air volume to the interior and the windows could fog up, impairing visibility and endangering you and others. Have a clogged filter replaced as soon as possible at an authorized Mercedes-Benz Center. Press button ´ ( page 190) or ( page 191) until the display 4 ( page 190) or ( page 191) is cleared. Reactivating Make sure the ignition is switched on. Press button ´ ( page 190) or ( page 191) again. The previous settings are once again in effect. i If the vehicle interior is hot, ventilate the interior before driving off, see "Summer opening feature" ( page 208). The climate control will then adjust the interior temperature to the set value much faster. Deactivating the climate control system The air conditioning will not engage (no cooling) if the A/C mode ( page 201) is deactivated. Warning! Warning! G i To switch the system on, you can also press another button, with the exception of 1 or F and T ( page 190) or ( page 191). G Follow the recommended settings for heating and cooling given on the following pages. Otherwise the windows could fog up, impairing visibility and endangering you and others. When the climate control is switched off, the outside air supply and circulation are also switched off. Only choose this setting for a short time. Otherwise the windows could fog up, impairing visibility and endangering you and others. 193