2003 Mercedes ML-Class Owner's Manual - Page 126

Controls in detail Automatic climate control The automatic climate control is operational whenever the engine is running. You can operate the climate control system in either the automatic or manual mode. The system cools or heats the interior depending on the selected interior temperature and the current outside temperature. Nearly all dust particles, pollutants and odors are filtered out before outside air enters the passenger compartment through the air distribution system. Warning! 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. Keep the air intake grille in front of the windshield free of snow and debris. Do not touch the interior temperature sensor to maintain a precise temperature. The set value is indicated by a lighted segment on the control wheels. Automatic mode Switching on Briefly press button U ( page 125). The indicator lamp lights up. The temperature, air volume and distribution are controlled automatically. Adjust the temperature with the temperature control 4 ( page 125). Temperature control is switched off in the extreme position (blue or red dot). 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. 126