2009 Mercedes E-Class Owner's Manual - Page 189

Controls in detail Climate control system 4-zones automatic climate control You can set the air temperature for each of the 4 zones separately. You should raise or lower the temperature setting in small increments, preferably starting at 72‡ (22†). Rear zones X Adjusting air vents G Warning! When operating the climate control, the air that enters the passenger compartment through the air vents can be very hot or very cold (depending on the set temperature). This may cause burns or frostbite to unprotected skin in the immediate area of the air vents. Always keep sufficient distance between unprotected parts of the body and the air vents. If necessary, use the air distribution adjustment to direct the air to air vents in the vehicle interior that are not in the immediate area of unprotected skin. For best possible performance of the climate control: X Keep the air intake grille in front of the windshield free of snow, leaves, sticks, and any other debris. X Always keep all air vents and grilles in the passenger compartment free from obstruction. Press button 511 or Ñ12. Display 4 (Y page 182) comes on. X Increasing/decreasing: Press button Á or  until the desired temperature appears in display 4. After approximately 5 seconds after the last adjustment, display 4 switches back to its standard display. i You can also press button 5 or Ñ once more to switch back to the standard display. Rear climate control panel You can adjust the air temperature on each side of the rear passenger compartment. You should raise or lower the temperature setting in small increments, preferably starting at 72‡ (22†). X Increasing/decreasing: Press button Á or  until the desired temperature appears in display 2 (Y page 184). Front zones X Increasing/decreasing: Press button Á or  until the desired temperature appears in display 4 (Y page 182). 11 USA 12 Canada only only Z 187