2007 Mercedes R-Class Owner's Manual - Page 237

Controls in detail 3-zone automatic climate control* Deactivating the automatic climate control system Reactivating Press button U ( page 234). Warning! 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. Warning! G i You can also press button ´ ( page 234) on the automatic climate control panel. If you press button 0 ( page 234) to reactivate the automatic climate control system, the defrosting mode is activated. i Severe conditions (e.g. strong air pollution) may require replacement of the filter before its scheduled interval. A clogged filter will reduce the air volume to the interior. If the vehicle interior is hot, ventilate the interior before driving off, see "Summer opening feature" ( page 254). The automatic climate control will then adjust the interior temperature to the set value much faster. Keep the air intake grille in front of the windshield free of snow and debris. When the automatic climate control system 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. Deactivating Press button ´ ( page 234) until the display e ( page 234) is cleared. The indicator lamp on the button comes on. 236