2009 Mercedes R-Class Owner's Manual - Page 194

Controls in detail 3-zone automatic climate control Rear automatic climate control Notes on 3-zone automatic climate control With the help of a sun sensor, the automatic climate control determines the relation of the sun to the vehicle and automatically adjusts the inside temperature for every individual zone. The automatic climate control is operational whenever the engine is running. It cools the vehicle's interior according to the angle and intensity of the sun's rays, the outside temperature and the selected temperature. You can operate the automatic climate control in either the automatic or manual mode. Nearly all dust particles, pollutants and odors are filtered out before outside air enters the passenger compartment through the air distribution system. as soon as possible at an authorized Mercedes-Benz Center. The air conditioning will not engage (no cooling) if the A/C mode is deactivated (Y page 193). 1 Increasing air volume 2 Temperature control 3 Air distribution and air volume (automatic G Warning! 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. Keep the air intake grille in front of the windshield free of snow and debris. mode) 4 Air distribution (directs air through the side air vents) 5 Air distribution (directs air through the footwells and side air vents) 6 Rear automatic climate control on/off 7 Decreasing air volume G Warning! 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 i If the vehicle interior is hot, ventilate the interior before driving off, see "Summer opening feature" (Y page 127). The climate control will then adjust the interior temperature to the set value much faster. 192