2011 Mercedes CLS-Class Owner's Manual - Page 150

219_AKB; 4; 54, en-US d2ureepe, 2009-05-11T16:21:02+02:00 - Seite 148 Version: 2.11.8.1 148 X Climate control system 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. Side air vents Controls in detail i For draft-free ventilation, move the adjustable center and side air vents to the middle position. Center air vents Example illustration driver's side : Left side defroster air vent, fixed ; Left side air vent, adjustable = Thumbwheel for air volume control for adjustable left side air vent X Opening/closing: Turn thumbwheel = in the required direction. : Left center air vent, adjustable ; Right center air vent, adjustable = Thumbwheel for air volume control for Front armrest storage compartment ventilation The front armrest storage compartment can be ventilated, for instance to cool its contents, when the climate control system is activated. The level of airflow to the front armrest storage compartment depends on the airflow and air distribution settings. The temperature of the air is approximately the same as that of the air flowing from the center air vents. adjustable right center air vent ? Thumbwheel for air volume control for adjustable left center air vent X Opening/closing: Turn thumbwheels = and ? upward or downward. ! Close the front armrest storage compartment air vent when heating the vehicle interior. Activate the air conditioning (cooling function) when the outside temperature is high. Otherwise, temperature-sensitive items stored in the front armrest storage compartment could be damaged.