188 Controls in detailAutomatic climate controlAir distribution in automatic mode
You can separately adjust the air distribu-
tion for each side of the passenger com-
partment.
Activating
Press control button1 or 5
(page 185).
The control button is engaged.
TheU symbol on the control button
comes on. Air distribution for the re-
spective side of the passenger com-
partment is adjusted automatically.
Deactivating
Press control button 1 or 5
(page 185) once more.
The control button sticks up slightly.
The U symbol on the control button
goes out. Automatic air distribution for
the respective side of the passenger
compartment is switched off. Adjust
the air distribution manually
(page 189).Air volume in automatic mode
The air volume settings are the same for
the entire passenger compartment.
Activating
Press control button 9 (
page 185).
The control button is engaged.
TheU symbol on the control button
comes on.
Deactivating
Press control button 9 (
page 185)
once more.
The control button sticks up slightly.
The U symbol on the control button
goes out. Adjust the air volume manu-
ally (
page 190).
Setting the temperature
Use temperature controls6 andb
(page 185) 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 automatic climate control will adjust
to the set temperature as fast as possible.
Increasing
Turn temperature control6
and/orb (
page 185) slightly
clockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing
Turn temperature control6
and/orb (
page 185) slightly
counterclockwise.
189 Controls in detail
Automatic climate control
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Adjusting air distribution
Use air distribution controls1 and5
(page 185) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:
Press control button 1 or 5
(page 185) until the control button
sticks up slightly and the U symbol
on the control button is out.Automatic air distribution for the re-
spective side of the passenger com-
partment is switched off.
Turn control button to the desired sym-
bol.
The air distribution is adjusted accord-
ing to the chosen setting.
Opening the center air vents
Turn thumbwheel 7 (
page 184) up-
ward to the first stop.
Center air vents 2 and 4
(
page 184) are open.
Opening the cockpit air vent and center
air vents
Turn thumbwheel 7 (
page 184) up-
ward all the way.
Cockpit air vent 3 and center air vents
2 and 4 (
page 184) are open.Closing the cockpit air vent and center
air vents
Turn thumbwheel 7 (
page 184)
downward.
Cockpit air vent 3 and center air vents
2 and 4 (
page 184) are closed.
Opening the side air vents
Turn thumbwheel 6 and 8
(page 184) upward.
The corresponding side air vent is
open.
Closing the side air vents
Turn thumbwheel 6 and 8
(page 184) upward.
The corresponding side air vent is
closed.
Symbol
Function
h
Directs air through the cen-
ter and side air vents
j
Directs air to the windows
V
Directs air into the entire
vehicle interior
k
Directs air to the footwells
i
You can also turn the air distribution control
to a position between two symbols.
i
The air vents are continuously variable.
190 Controls in detailAutomatic climate controlAdjusting air volume
Use air volume control9 (
page 185) for
both automatic (
page 187) and manual
air volume adjustment. Nine blower
speeds are available.
Press control button9 (
page 185).
The control button sticks up slightly.
The U symbol on the control button
goes out. Automatic air volume control
is switched off. The air volume is ad-
justed corresponding to the set blower
speed.
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, MAXCOOL is activated.
“MAX COOL” appears on the temperature
controls 6 and b (
page 185).
This provides the fastest possible cooling
of the vehicle interior (when retractable
hardtop is closed).
Automatic climate control panel with
MAXCOOL activated
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.i
Keep this setting selected only until the
windshield or the side windows are clear again.
191 Controls in detail
Automatic climate control
Activating
Press button P (
page 185).
The indicator lamp on the button
comes on.
The air conditioning switches to the fol-
lowing functions automatically:
cooling on to dehumidify
maximum blower speed and
heating power
air flows onto the windshield
and the front side windows
the air recirculation mode is
switched off
Deactivating
Press button P (
page 185).
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are in effect
again.Windshield fogged on the outside
Switch the windshield wipers on
(page 57).
If the automatic air distribution and air vol-
ume are switched off:
Turn air distribution controls1 and 5
(page 185) to position h ork.
or
Press control buttons 1, 5 and 9
(page 185).
The control buttons are engaged. The
U symbol on the control buttons
come on. Air distribution and air vol-
ume are adjusted automatically.
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.
i
The cooling remains switched on.
i
Keep this setting selected only until the
windshield is clear again.
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 193) is activated, or
press buttonP.
192 Controls in detailAutomatic climate controlActivating
Briefly press button,
(page 185).
The indicator lamp on the button
comes on.Deactivating
Briefly press button,
(page 185).
The indicator lamp on the button goes
out.
At outside temperatures above 79°F
(26 °C) the system will not automatically
switch back to outside air.Air recirculation mode with conve-
nience closing or opening feature
Activating
Press and hold button,.
The indicator lamp on the button
comes on. The air recirculation mode is
activated. The windows will close.
i
The air recirculation mode is activated auto-
matically
at high outside temperatures
if the concentration of carbon monoxide
(CO) and/or nitrogen oxide (NO
x) in the out-
side air increases, for example in a tunnel
The indicator lamp on button, is not lit when
the air recirculation mode is automatically
switched on.
A quantity of outside air is added after approxi-
mately 30 minutes.
i
The manually selected air recirculation
mode is deactivated automatically
after 5 minutes if the outside temperature is
below approximately 41°F (5 °C)
after 5 minutes if the air conditioning is
turned off
after 30 minutes if the outside temperature
is above approximately 41°F (5 °C)
Warning!
G
Never operate the windows if there is the
possibility of anyone being harmed by the
closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the windows
can be immediately halted by releasing
the, button or by pressing and pulling
the respective window switch.
193 Controls in detail
Automatic climate control
Deactivating
Press and hold button,.
The indicator lamp on the button goes
out. The air recirculation mode is deac-
tivated. The windows will return to their
previous position.
Air conditioning
The air conditioning (cooling) function is
operational when the engine is running and
cools the vehicle interior down to the se-
lected temperature. In addition, the cool-
ing function dehumidifies the air in the
vehicle interior, thus preventing the win-
dows from fogging up.Deactivating
It is possible to deactivate the cooling
function of the automatic climate control
system. The air in the vehicle will then no
longer be cooled or dehumidified.
Press button 2 (
page 185).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
i
A window will only return to its previous po-
sition if it has not moved to another position us-
ing the respective window switch after it was
closed with button
,
.
i
Condensation may drip out from underneath
the vehicle. This is normal and not an indication
of a malfunction.Warning!
G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
194 Controls in detailAutomatic climate controlActivating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button 2 once more
(page 185).
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134A. This refrigerant is free of CFCs
which are harmful to the ozone layer.
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
With the SmartKey:
Turn the SmartKey in the starter switch
to position1 or0, or remove it from
the starter switch.
Press button T (
page 185).
The indicator lamp on the button
comes on.
With KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* start/stop button and
open the driver’s door (with the driver’s
door open, the starter switch is in posi-
tion 0, same as with the SmartKey re-
moved from the starter switch)
Press button T (
page 185).
The indicator lamp on the button
comes on.
!
If the 2 button on the automatic climate
control panel starts to flash, this indicates that
the air conditioning is losing refrigerant. The
compressor has turned off. The air conditioning
cannot be turned on again.
Have the air conditioning checked at the
nearest authorized Mercedes-Benz Center.
i
How long the system will provide heating de-
pends on the coolant temperature and the se-
lected temperature. The blower will run at low
speed regardless of the air distribution control
setting.
195 Controls in detail
Automatic climate control
Deactivating
Press button T (
page 185).
The indicator lamp on the button goes
out.
The residual heat is automatically turned
off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
Ventilated glove box
The glove box has its own air vents that al-
low for cooling ventilation when the auto-
matic climate control system is activated.Glove box1Thumbwheel
2Air ventOpening the air vent
Make sure the air vent in the glove box
is unobstructed.
Turn thumbwheel1 upwards.
Closing the air vent
Turn thumbwheel1 downwards.
i
You should keep air vent 2 closed when
outside temperatures are low.