2003 Mercedes E-Class Owner's Manual - Page 175

Controls in detail Automatic climate control* The automatic climate control is a 4-zone intelligent climate control system. Your vehicle interior is divided into 4 zones. 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. You can set the temperature for each of the 4 zones separately. These settings can be assigned to a key and stored in memory ( page 144). 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. The activated charcoal filter, when switched on, markedly reduces odors and removes pollutants from the air entering the passenger compartment. ! If the interior has been heated, air the vehicle out before driving. Keep the air intake between the hood and the windshield free of snow. Do not cover the ventilation slot between the rear shelf and the rear window. 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. i Condensation may drip from underneath the vehicle. This is normal and not an indication of a malfunction. 175