2007 Mercedes R-Class Owner's Manual - Page 241

Controls in detail 3-zone automatic climate control* Windshield fogged on the outside Maximum cooling MAX COOL If the air distribution control as well as the airflow volume control are set to U and there is a high need for cooling, the MAX COOL function is activated. "MAX COOL" appears in the front and rear display. This provides the fastest possible cooling of the vehicle interior (when windows and tilt/sliding sunroof* or tilt/sliding panel* are closed). Air recirculation mode Switch to air recirculation mode to prevent unpleasant odors from entering the vehicle from the outside (e.g. before driving through a tunnel). This setting cuts off the intake of outside air and recirculates the air in the passenger compartment. Warning! i Keep this setting selected only until the windshield is clear again. Switch the windshield wipers on ( page 60). Press button U ( page 234). AUTO appears in the display e ( page 234). Air volume and air distribution are controlled separately for each zone. G If the automatic air distribution and air volume are switched off: Press buttons 8 and Y ( page 234). Fogged windows impair visibility, endangering you and others. If the windows begin to fog on the inside, switching off the air recirculation mode immediately should clear interior window fogging. If interior window fogging persists, make sure the air conditioning ( page 243) is activated, or press button 0. 240