Page 82 of 198

Downloaded from www.Manualslib.com manuals search engine PRINCIPLE OF
OPERATION
Outside air
Always keep the air intakes forwardof the front windscreen free of snow,leaves etc., to allow the system tofunction effectively.
Recirculated air
Note: It is not recommended to userecirculated air for more than 30minutes as there is no air exchangeand the windows may mist up.
When recirculated air is selected, onlythe air currently in the passengercompartment will be circulated.Outside air will not enter the vehicle.
Fresh air filter/activecarbon filter
The fresh air filter removes mostpotentially harmful particles such aspollen, industrial fallout and road dustfrom the air entering the vehicle’sinterior. The active carbon filterremoves odours.
In an automatic car wash, you shouldswitch off the ventilation blower toprevent the filter collecting waxdeposits.
Blower
The blower motor may emit noises.
Heating
The heating depends upon thecoolant temperature and is thereforeonly effective when the engine iswarm.
Air conditioning
Note: The air conditioning systemonly operates when the temperatureis above +5 ºC, the engine is runningand the blower is switched on.Operating the air conditioning leadsto higher fuel consumption.
The air is directed through thecoolant heat exchanger where it iscooled if the air conditioning isswitched on. In addition, humidity isextracted from the air to help keepthe windows free of mist.
The resulting condensation isdirected to the outside of the vehicle.It is therefore quite normal if younotice a small pool of waterunderneath the parked vehicle.
General notes oncontrolling the climate inthe vehicle’s interior
Close all the windows completely.
To warm the interior effectively, directthe heated air to the footwell area. Incold or humid weather, direct someof the air towards the frontwindscreen and side windows.
To cool the interior effectively, directthe cooled air towards the face level.
80
Climate control
Page 87 of 198

Downloaded from www.Manualslib.com manuals search engine To toggle between °Celsius and°Fahrenheit, press both blowerbuttons and the recirculated airbutton simultaneously for at least twoseconds.
Blower and air distribution
The amount of air and air distributioncan be set manually using thebuttons. The settings are indicatedin the display. See Manual climatecontrol (page 81). To return to AUTOmode, press the AUTO button.
Switching the airconditioning on and off
Press the A/C button to switch theair conditioning on and off. ECOappears in the display when the airconditioning is switched off. A/Cappears in the display when the airconditioning is switched on.
Switching the automaticclimate control on and off
Note: Switching the automaticclimate control off is recommendedonly when driving with the windowsand/or sunroof open. This ensuresthat the automatic function does notwork against the additional air flowthrough the windows and/or sunroof.
Press OFF to switch off theautomatic climate control. Thesettings remain stored. The heating,ventilation and air conditioningsystem is switched off andrecirculated air is selected.
Press OFF or AUTO to switch thesystem back on. If another button ispressed, the stored settings will bechanged accordingly when thesystem is switched on.
85
Climate controlE72155 E72156 E72157
Page 98 of 198

Downloaded from www.Manualslib.com manuals search engine Press the + button repeatedly to raisethe temperature. Pressing the –button repeatedly will lower thetemperature. The number ofilluminated lights beside the buttonindicates the selected step. Theheater setting is indicated in red, thecooler setting in blue. When no lightis illuminated, the ventilation of theseat is switched off.
Recommended settings
Use step 1 or 2 for ventilation of theseat with a comfortable temperaturefor longer periods. The steps 4 and5 are only recommended for shortperiods with a high difference intemperature.
When the seat is being ventilated, theheater may be switched onautomatically. This is to prevent theflow of air becoming uncomfortablycool.
The air in the vehicle interior is usedto ventilate the seats. The coolingeffect therefore depends on thetemperature of the vehicle interior.Switch on the air conditioning ifnecessary and set the air distributionto the footwell. See Climate control(page 80).
96
Seats