The automatic climate control is operation-al whenever the engine is running. You can operate the climate control system in ei-ther the automatic or manual mode. The system cools or heats the interior depend-ing on the selected interior temperature and the current outside temperature.
Nearly all dust particles, pollutants and odors are filtered out before outside air en-ters the passenger compartment through the air distribution system.
The air conditioning will not engage (no cooling) if the economy mode ACOFF mode is selected (컄page 151).
Setting the temperature
Use temperature controls 1 and 14 for the left side or 6 and 7 for the right side to separately adjust the air temperature on each side of the passenger compartment.
You should raise or lower the temperature setting in small increments, preferably starting at 72°F (22°C).
Increasing
왘 Push temperature control 1 and/or 6.
The automatic climate control system will correspondingly adjust the interior air temperature.
Decreasing
왘 Push temperature control 7 and/or 14.
The automatic climate control system will correspondingly adjust the interior air temperature.
Adding outside air
왘 Turn thumbwheel 5 in dashboard (컄page 150) to increase flow of out-side air through air vents for center, left and right sides and rear passenger compartment.
Warning!
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Follow the recommended settings for heat-ing and coolheat-ing given on the followheat-ing pag-es. Otherwise the windows could fog up, impairing visibility and endangering you and
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If the vehicle interior is hot, ventilate the interior before driving off.
Keep the air intake grille in front of the windshield free of snow and debris.
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When operating the climate control system in automatic mode, you will only rarely need to adjust the tempera-ture, air volume and air distribution.
Controls in detail Automatic climate control* (Canada only)
Adjusting air distribution
Use air distribution controls 2 and 5 (컄page 151) to separately adjust the air distribution on each side of the passenger compartment. The following symbols are found on the controls:
Adjusting manually
왘 Press left or right U button.
The air distribution can be adjusted manually.
Adjusting automatically
왘 Press left or right U button again.
The air distribution is adjusted auto-matically.
Windshield fogged on the outside
왘 Switch the windshield wipers on.
왘 Switch to manual mode.
왘 Turn the air distribution control to a or Y.
Adjusting air volume
Adjusting manually
Seven blower speeds are available.
왘 Press left M or right Q side of air volume control switch until the re-quested blower speed is attained.
The display “Auto” disappears and the automatic mode is switched off. The selected blower speed is shown in the display.
Adjusting automatically
왘 Press left or right U button.
The air volume is adjusted automatical-ly.
Symbol Function
a Directs air through the center, side and rear pas-senger compartment air vents
Z Directs air to the windows X Directs air into the entire
vehicle interior
Y Directs air to the footwells
Controls in detail
Automatic climate control* (Canada only)
Maximum cooling MAXCOOL
If the left and right air distribution controls as well as the airflow volume control are set to U and there is a high need for cooling, the display “AUTO MAXCOOL” ap-pears.
This provides the fastest possible cooling of the vehicle interior (when windows and panorama sliding/pop-up roof* are closed).
Defrosting
Activating
왘 Press button P (컄page 151).
The indicator lamp on the button lights up
왘 Switch off air recirculation, if selected.
왘 Press button O (컄page 151).
The indicator lamp on the button goes out.
왘 Close center air vents.
왘 Adjust side air vents upwards.
Deactivating
Air recirculation mode
Switch to air recirculation mode to prevent unpleasant odors from entering the vehicle from the outside. This setting cuts off the intake of outside air and recirculates the air in the passenger compartment.
Activating
왘 Press button O (컄page 151).
The indicator lamp on the button lights up.
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These settings should only be selected for a short time.
Warning!
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When the outside temperature is below 41°F (5°C), only switch to air recirculation mode for short periods to prevent window fogging.
Controls in detail Automatic climate control* (Canada only)
Deactivating
왘 Press button O (컄page 151).
The indicator lamp on the button goes out.
The air recirculation mode is deactivated automatically:
앫 after five minutes if the outside temper-ature is below approximately 41°F (5°C)
앫 after five minutes if the air conditioning is turned off
앫 after 30 minutes if the outside temper-ature is above approximately 41°F (5°C)
At outside temperatures above 79°F (26°C) the system will not automatically switch back to outside air. A quantity of outside air is added after approximately 30 minutes.
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If you keep button O pressed, the side windows and the panorama slid-ing/pop-up roof will be closed.
The air recirculation mode is activated automatically:
앫 at high outside temperatures
앫 if the concentration of carbon mon-oxide and nitrogen mon-oxide in the out-side air increases, for example in a tunnel (charcoal filter activated) The charcoal filter must be activated (컄page 156) for the air recirculation mode to be activated automatically.
If you have turned off the air condition-ing (컄page 157) or the outside temperature is below 41°F (5°C), the air recirculation mode will not switch on automatically.
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If you keep button O pressed the side windows and the panorama slid-ing/pop-up roof will be returned to their previous position.
Controls in detail
Automatic climate control* (Canada only)
Charcoal filter
An activated charcoal filter markedly re-duces bad odors and removes pollutants from air entering the passenger compart-ment.
Activating
왘 Press button e (컄page 151).
The indicator lamp on the button lights up.
The system switches automatically to the air recirculation mode if the carbon monoxide (CO) or nitrogen oxide (NOX) concentration of the outside air increases beyond a predetermined level.
Deactivating
왘 Press button e (컄page 151).
The indicator lamp on the button goes out.
The automatic air recirculation mode does not function if economy mode ACOFF is se-lected or if the outside temperature has fallen below 41°F (5°C).
The activated charcoal filter should be switched off when windows fog up on the inside, or if the passenger compartment needs to be quickly heated or cooled down.
Rear window defroster
The rear window defroster uses a large amount of power. To keep the battery drain to a minimum, switch off the defrost-er as soon as the rear window is clear. The defroster is automatically deactivated af-ter approximately 6 to 17 minutes of oper-ation depending on the outside
temperature.
Activating
왘 Press button F (컄page 151).
The indicator lamp on the button lights up.
Deactivating
왘 Press button F (컄page 151) again.
The indicator lamp on the button goes out.
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If you keep button e pressed, the side windows and the panorama slid-ing/pop-up roof* will be closed.
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If you keep button e pressed, the side windows and the panorama slid-ing/pop-up roof will be returned to their previous position.
Controls in detail Automatic climate control* (Canada only)
Air conditioning
The air conditioning is operational while the engine is running and cools the interior air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-tioning (cooling) function of the automatic climate control system. The air in the vehi-cle will then no longer be cooled or dehu-midified.
왘 Press button ACOFF (컄page 151).
The indicator lamp on the button ACOFF lights up.
Activating
Moist air can fog up the windows. You can dehumidify the air with the air condition-ing.
왘 Press ACOFF again (컄page 151).
The indicator lamp on the button ACOFF goes out.
The air conditioning system uses the refrig-erant R134a. This refrigrefrig-erant is free of CFCs which are harmful to the ozone layer.
Warning!
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Any accumulation of snow and ice should be removed from the rear window before driv-ing. Visibility could otherwise be impaired, endangering you and others.
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If the rear window defroster switches off too soon and the indicator lamp starts blinking, this means that too many electrical consumers are operat-ing simultaneously and there is insuffi-cient voltage in the battery. The system responds automatically by deactivating the rear window defroster.
As soon as the battery has sufficient voltage, the rear window defroster au-tomatically turns itself back on.
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Condensation may drip out from under-neath the vehicle. This is normal and not an indication of a malfunction.
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If the air conditioning cannot be turned on again, this indicates that the air con-ditioning system is losing refrigerant.
The compressor has turned itself off.
Have the air conditioning system checked at the nearest authorized Mercedes-Benz Center.
Controls in detail
Automatic climate control* (Canada only)
Residual heat and ventilation*
With the engine switched off, it is possible to continue to heat or ventilate the interior for up to 30 minutes. This feature makes use of the residual heat produced by the engine.
Activating
왘 Turn the key in the starter switch to position 1 or remove it from the starter switch.
왘 Press button T (컄page 151) The indicator lamp on button T comes on.
Deactivating
왘 Press button T (컄page 151).
The indicator lamp on button T goes off.
앫 after about 30 minutes
앫 if the battery voltage drops
Rear passenger compartment adjust-able air vents
Adjusting the air volume
왘 Turn thumbwheel 2.
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How long the system will provide heat-ing depends on the coolant tempera-ture and the temperatempera-ture set by the operator. The blower will run at speed setting 1 regardless of the air distribu-tion control setting.
Item
1 Left center air vent 2 Thumbwheel 3 Right center air vent 4 Air vent, closed 5 Air vent, opened 6 Blower
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Four blower speeds are available.
The temperature at the air vents for rear passenger compartment 1 and 3 is the same as at the dashboard center air vents.