2003 Mercedes E-Class Owner's Manual - Page 176

Controls in detail Automatic climate control* Nearly all dust particles, pollutants and odors are filtered out before outside air enters the passenger compartment through the air distribution system. The air conditioning will not engage (no cooling) if the economy mode ACOFF is selected ( page 174). Warning! i 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 obstruct air flow by placing objects on the air flow-through exhaust slots below the rear window. Setting the temperature Use temperature control 3 for the left side or 5 for the right side to separately adjust the air temperature on each side of the passenger compartment. You should raise or lower the temperature setting in small increments, preferably starting at 72°F (22°C). Increasing Push top of temperature control rocker switch 3 and/or 5. The automatic climate control system will correspondingly adjust the interior air temperature. Decreasing Push bottom of temperature control rocker switch 3 and/or 5. The automatic climate control system will correspondingly adjust the interior air temperature. Heating: Only in manual air distribution mode is it possible to lower the temperature in the headroom by adding outside air using thumbweel 7 ( page 172) in the dashboard. 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. i When operating the climate control system in automatic mode, you will only rarely need to adjust the temperature, air volume and air distribution. 176