Page 192 of 481
191 Controls in detail
4-zone automatic climate control
Canada only
1Air distribution, driver’s side
2Front window defroster
3Temperature rocker switch, driver’s
side
4Display
5Temperature rocker switch,
passenger side
6Rear window defroster
7Air distribution, passenger side
8Air distribution and air volume, pas-
senger side (automatic, manual)
9AC cooling on/off
aRear air-conditioning remote control
bIncreasing air volume
cClimate control on/off
dDecreasing air volume
eResidual heat/ventilation
fAir recirculation
gAir distribution and air volume, driv-
er’s side (automatic, manual)
Page 194 of 481
193 Controls in detail
4-zone automatic climate control
The air conditioning will not engage (no
cooling) if the A/C mode (
page 201) is
deactivated.Deactivating the climate control
systemDeactivating
Press button´ (page 190) or
(
page 191) until the display4
(
page 190) or (page 191) is
cleared.
Reactivating
Make sure the ignition is switched on.
Press button´ (page 190) or
(
page 191) again.
The previous settings are once again in
effect.
Warning!G
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A
clogged filter will reduce the air volume to
the interior and the windows could fog up,
impairing visibility and endangering you and
others. Have a clogged filter replaced as
soon as possible at an authorized
Mercedes-Benz Center.
Warning!G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iKeep the air intake grille in front of the wind-
shield free of snow and debris.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.
iIf the vehicle interior is hot, ventilate the in-
terior before driving off, see “Summer opening
feature” (
page 208). The climate control will
then adjust the interior temperature to the set
value much faster.
Warning!G
When the climate control is switched off, the
outside air supply and circulation are also
switched off. Only choose this setting for a
short time. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
iTo switch the system on, you can also press
another button, with the exception of 1 or
F and T (
page 190) or (page 191).
Page 195 of 481
194 Controls in detail
4-zone automatic climate control
Operating the climate control system
in automatic modeActivatingPress one buttonU (page 190) or
(
page 191) while the engine is run-
ning.
The indicator lamp on the button
comes on.
AUTO appears in display4
(
page 190) or (page 191). The air
volume and air distribution are adjust-
ed automatically.
Use temperature rocker switches3
and5 (
page 190) or (page 191)
to separately adjust the air tempera-
ture on each side of the passenger
compartment.
The temperature of the vehicle interior
is adjusted automatically.Deactivating
Press button orQ
(
page 190) or (page 191).
The
AUTO indicator in display4
(
page 190) or (page 191) goes
out. The automatic function for air vol-
ume is switched off, and air volume is
controlled according to the desired set-
ting.
or
Turn air distribution controls1
and7 (
page 190) or (page 191)
on each side of the passenger compart-
ment to the desired symbol.
The indicator lamp on the correspond-
ing button goes out. Automatic air dis-
tribution is switched off in the
corresponding zone, and air distribu-
tion is controlled according to the de-
sired position.
The automatic air volume remains
switched on.
iWhen operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off.
Warning!G
If you switch off the cooling function the
windows can fog up more quickly. Window
fogging may impair visibility and endanger
you and others.
iYou can switch the automatic climate con-
trol system on and off for each side of the pas-
senger compartment as desired.
Page 196 of 481
195 Controls in detail
4-zone automatic climate control
Setting the temperature
Use temperature control rocker
switches3 and5 (
page 190) or
(
page 191) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
The adjusted temperature appears in
display4 (
page 190) or (page 191).
The climate control will adjust to the set
temperature as fast as possible.Increasing
Push top of temperature control rocker
switch3 and/or5 (
page 190) or
(
page 191).
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing
Push bottom of temperature control
rocker switch3 and/or 5
(
page 190) or (page 191).
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Adjusting air distribution
Use air distribution controls1 and7
(
page 191) or (page 190) to separate-
ly adjust the air distribution on each side of
the passenger compartment.
The following symbols are located on the
controls:
iYou can also adjust the temperature in the
rear passenger compartment (
page 202).
iWhen operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
SymbolFunction
aDirects air through the center,
side and rear passenger com-
partment air vents
ZDirects air to the windshield
and through the side air vents
XDirects air into the entire vehi-
cle interior
YDirects air to the footwells
Page 197 of 481
196 Controls in detail
4-zone automatic climate control
Turn air distribution controls1
and7 (
page 191) or (page 190)
on each side of the passenger compart-
ment to the desired symbol.
The indicator lamp on the correspond-
ing button goes out and the automatic
air distribution is switched off for the
corresponding side. The air distribution
is controlled according to the thumb-
wheel setting.
Opening the center air vents
Turn thumbwheels 3 and 4
(
page 188) upward.
Side air vents 2 and 5 are open.Closing the center air vents
Turn thumbwheels3 and4
(
page 188) downward.
Side air vents2 and5 are closed.
Opening and closing side air vents
Turn thumbwheels 8 and a
(
page 188) in the required direction.
Side air vents 7 and b are open or
closed.
Adjusting air volume
Use buttonsU (
page 190) or
(
page 191) for automatic mode or air
volume buttons orQ
(
page 190) or (page 191) to adjust air
volume manually.
Nine blower speeds are available.
Press button to decrease or
buttonQ to increase air volume to
the desired level.
The
AUTO indicator for air volume in
display4 goes out (
page 190) or
(
page 191). The selected blower
speed is shown in display4. Automat-
ic air distribution remains switched on.
The indicator lamps on theU but-
tons remain lit.
iYou can also turn the air distribution control
to a position between two symbols.
Page 198 of 481
197 Controls in detail
4-zone automatic climate control
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.
Activating
Press buttony (page 190) or
(
page 191).
The indicator lamp on the button
comes on. Display4 (
page 190) or
(
page 191) is cleared.The climate control switches automatically
to the following functions:
cooling on to dehumidify
most efficient blower speed and
heating power, depending on out-
side temperature
air flows onto the windshield and
the front side windows
the air recirculation mode is
switched off
Deactivating
Press buttony (page 190) or
(
page 191) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.Windshield fogged on the outside
Switch windshield wipers on
(
page 56).
Press buttonU (page 190) or
(
page 191).
If the automatic mode of the climate con-
trol is switched off:
Turn air distribution control1 and 7
to a or Y (
page 190) or
(
page 191).
iKeep this setting selected only until the
windshield or the side windows are clear again.
iYou can adjust the air volume, air distribu-
tion and the temperature when the front defrost-
er is switched on.
iTo switch the front defroster off, you can
also press buttonU or ´ (
page 190) or
(
page 191).
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.
Page 199 of 481
198 Controls in detail
4-zone automatic climate control
Maximum cooling MAX COOL
(USA only)
You can use this setting to provide the fast-
est possible cooling of the vehicle interior
(when windows and tilt/sliding sunroof are
closed).
Activating
Press buttone (page 190).
MAX COOL appears in display4
(
page 190).
The air conditioning switches
automatically to the following functions:
maximum cooling
maximum blowing power
the air recirculation mode is
switched onDeactivating
Press buttone (page 190) again.
MAX COOL disappears in display4
(
page 190).
The previous settings are once again in
effect.
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.
iTo switch the maximum cooling function off,
you can also press button ´, U, y or
1 (
page 190).Warning!G
Fogged windows impair visibility, endanger-
ing 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 201) is activated, or
press buttony.
Page 203 of 481
202 Controls in detail
4-zone automatic climate control
Activating
Switch off the ignition.
Press buttonT (page 191).
REST in display4 (page 191) comes
on.
Deactivating
Press buttonT (page 191) again.
REST in display4 (page 191) goes
out.
Rear climate control
The rear climate control is adjusted via the
front climate control panel (
page 190) or
(
page 191) or the rear climate control
panel.
The rear climate control panel is located in
the rear center console.
iHow long the system will provide heating de-
pends on
the coolant temperature
the temperature set by the operator
The blower will run at speed setting1 regardless
of the air distribution control setting.
iThe residual heat is automatically turned off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
if the coolant temperature is too low
1Left rear center air vent, adjustable
2Right rear center air vent, adjustable
3Thumbwheel for air volume control
for right rear center air vent
4Temperature rocker switch, right
5Display
6Temperature rocker switch, left
7Thumbwheel for air volume control
for left rear center air vent
