2011 Mercedes G-Class Owner's Manual - Page 108

106 Overview of climate control systems Vehicle equipment i This manual describes all the standard and optional equipment of your vehicle which was available at the time of purchase. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safetyrelevant systems and functions. Overview of climate control systems Important safety notes This will speed up the cooling process and the desired vehicle interior temperature will be reached more quickly. i The integrated filter can filter out most particles of dust and completely filters out pollen. A clogged filter reduces the amount of air supplied to the vehicle interior. For this reason, you should always observe the interval for replacing the filter, which is specified in the Service Booklet. As it depends on environmental conditions, e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet. Climate control 6 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 as soon as possible at an authorized Mercedes-Benz Center. 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. Automatic climate control controls the temperature and the humidity in the vehicle interior and filters undesirable substances from the air. Automatic climate control is only operational when the engine is running6. Optimum operation is only achieved when you drive with the side windows and the sliding sunroof closed. i Ventilate the vehicle for a brief period during warm weather, e.g. using the convenience opening feature (Y page 71). The "residual heat" function can only be switched on/off if the ignition is switched off.