140 Climate controlIf no cooling or drying is required,switch the cooling system off to savefuel. When the cooling system isswitched off, no engine restart will berequested by the climate controlsystem during an Autostop.The display will indicate AC ON whencooling is activated or AC OFF whenthe cooling is deactivated.Air recirculation mode9 WarningThe exchange of fresh air isreduced in air recirculation mode.In operation without cooling the airhumidity increases, so thewindows may mist up from inside.The quality of the passengercompartment air deteriorates,which may cause the vehicleoccupants to feel drowsy.In warm and very humid ambient airconditions, the windscreen might mistup from outside, when cold air isdirected to it. If windscreen mists upfrom outside, activate windscreenwiper and deactivate s.Press button 4 once to activate themanual air recirculation mode.Activation is indicated by the LED inthe button.Basic settingsSome settings can be changed in themenu Settings in the Info-Display.Vehicle personalisation 3 119.Auxiliary heaterAir heaterQuickheat is an electric auxiliary airheater which automatically warms upthe passenger compartment morequickly.
