2006 MERCEDES-BENZ C55AMG climate control

186 Controls in detail
Automatic climate control* (Canada only)
The automatic climate control is operation-
al whenever the engine is running. You can
operate the automatic climate control sys-
tem in either the automatic or manual
mode. The system cools or heats the inte-
rior depending on the selected interior
temperature and the current outside tem-
perature.Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the passenger compartment
through the air distribution system.
The air conditioning will not engage (no
cooling) if the modeA/C is deactivated
(
page 194).
Warning!G
When operating the automatic climate
control, the air that enters the passenger
compartment through the air vents can be
very hot or very cold (depending on the set
temperature). This may cause burns or frost-
bite on unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution control (
page 189) to
direct the air to air vents in the vehicle
interior that are not in the immediate area of
unprotected skin.
Warning!G
Follow the recommended settings for
heating and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
i
Severe conditions (e.g. strong air
pollution) may require replacement of
the filter before its scheduled interval.
A clogged filter will reduce the air
volume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off, see
“Summer opening feature”
(
page 241). The automatic climate
control will then adjust the interior
temperature to the set value much fast-
er.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing
objects on the air flow-through exhaust
slots below the rear window.

187 Controls in detail
Automatic climate control* (Canada only)
Deactivating the automatic climate
control system
Deactivating
Press button´ (page 185).
The indicator lamp on the button
comes on.
Reactivating
Press button´ (page 185).
The indicator lamp on the button goes
out.Operating the automatic climate con-
trol system in automatic modeActivatingPress buttonU (page 185) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.
1Temperature, left
2Blower speed
3Temperature, right
Use temperature controls3 and
dor6 and b (
page 185) to sepa-
rately adjust the air temperature on
each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Warning!G
When the automatic climate control is
switched off, the outside air supply and cir-
culation 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.
i
When operating the automatic climate
control system in automatic mode, you
will only rarely need to adjust the
temperature, air volume and air
distribution.
In automatic mode, cooling with dehu-
midify is switched on. This function can
be switched off if necessary.
i
The automatic climate control system
can be switched on or off separately for
the left and right sides of the passenger
compartment, as required.

188 Controls in detail
Automatic climate control* (Canada only)
Deactivating
Press buttonU (page 185) again.
The indicator lamp on the button goes
out. The automatic operation of air vol-
ume and air distribution switches off.
Setting the temperature
Use temperature controls3 andd for
the left side or6 andb for the right side
(
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 22°C (72°F).
The automatic climate control will adjust
to the set temperature as fast as possible.Increasing
Press temperature button3
and/or6 (
page 185) until the de-
sired temperature appears in the con-
trol panel display4 (
page 185).
The automatic climate control system
will correspondingly adjust the interior
air temperature.Decreasing
Press temperature buttonb
and/ord (
page 185) until the de-
sired temperature appears in the con-
trol panel display4 (
page 185).
The automatic climate control system
will correspondingly adjust the interior
air temperature.
i
If you increase the temperature for one
side of the vehicle to the highest ad-
justable value then you will see the
message
HI in the display. This also in-
creases the temperature for the other
side of the vehicle at the same time.
i
If you decrease the temperature for
one side of the vehicle to the lowest ad-
justable value then you will see the
message
LO in the display. This also de-
creases the temperature for the other
side of the vehicle at the same time.

189 Controls in detail
Automatic climate control* (Canada only)
Adjusting air distribution
Use air distribution controls1 and8
(
page 185) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:
Turn air distribution control1 or8
(
page 185) to the desired symbol.
The indicator lamp on the buttonU
(
page 185) goes out.
The automatic air distribution is
switched off. The air distribution is
controlled according to the selected
control setting.Opening center and side air vents
Turn thumbwheels 3, 4, 7 and 8
(
page 184) upward.
The center air vents 5 and 6 and side
air vents 2 and 9 (
page 185) are
open.
Closing center and side air vents
Turn thumbwheels 3, 4, 7 and 8
(
page 184) downward.
The center air vents 5 and 6 and side
air vents 2 and 9 (
page 184) are
closed.
SymbolFunction
aDirects air through the center,
side and rear passenger
compartment air vents
ZDirects air to the windshield
and the side defroster vents
bDirects air into the entire
vehicle interior
YDirects air to the footwells
i
You can also turn the air distribution
control to a position between two sym-
bols.

190 Controls in detail
Automatic climate control* (Canada only)
Adjusting air volume
Use buttonU (
page 185) for auto-
matic mode or air volume controls

orQ (
page 185) to adjust air volume
manually.
Seven blower speeds are available.
Press button
to decrease
orQ (
page 185) to increase air
volume to the desired level.
The indicator lamp on the buttonU
goes out.
The automatic air distribution remains
switched on.
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 buttonP(page 185).
The indicator lamp on the button
comes on.The air conditioning switches
automatically to the following functions:

cooling on to dehumidify

maximum blowing and heating
power

air flows onto the windshield and
the front side windows

the air recirculation mode is
switched off
Deactivating
Press buttonP (page 185) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.
i
Keep this setting selected only until the
windshield or the side windows are
clear again.
i
The cooling remains switched on.

191 Controls in detail
Automatic climate control* (Canada only)
Windshield fogged on the outside
Switch the windshield wipers on
(
page 50).
If the automatic mode of the automatic cli-
mate control is switched off:
Turn air distribution control1 or8
toa orY (
page 185).
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU (
page 185) and there is a
high need for cooling, the display
“MAXCOOL” appears.
This provides the fastest possible cooling
of the vehicle interior (when side windows
and tilt/sliding sunroof are closed).
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.Activating
Press button, (page 185).
The indicator lamp on the button
comes 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 185) is activated, or
press buttonP.
i
The air recirculation mode is activated
automatically at high outside tempera-
tures.
The indicator lamp on the button,
is not lit when the air recirculation
mode is automatically switched on.
A quantity of outside air is added after
approximately 30 minutes.

192 Controls in detail
Automatic climate control* (Canada only)
Deactivating
Press button, (page 185) again.
The indicator lamp on the button goes
out.Warning!G
Never operate the side windows and the
tilt/sliding sunroof if there is the possibility
of anyone being harmed by the closing
procedure.
In the event that the closing procedure
causes potential danger, the closing of the
side windows can be immediately halted by
pressing or pulling the respective window
switch. The closing of the tilt/sliding
sunroof can be immediately halted by
moving the tilt/sliding sunroof switch in the
overhead control panel in any direction.
The closing of the side windows and
tilt/sliding sunroof can be reversed by again
pressing and holding the button,.
i
Press and hold button, for approx.
2 seconds. The side windows and
tilt/sliding sunroof will close. You can
release button, once the closing
procedure has begun. The windows
and tilt/sliding sunroof continue clos-
ing until they are fully closed.
i
The air recirculation mode is deactivat-
ed automatically:

after 5 minutes if the outside tem-
perature is below
approximately 5°C (41°F)

after 5 minutes if the air condition-
ing is turned off

after 30 minutes if the outside tem-
perature is above approximately
5°C (41°F)

193 Controls in detail
Automatic climate control* (Canada only)
Charcoal filter
An activated charcoal filter markedly
reduces bad odors and removes pollutants
from air entering the passenger compart-
ment. The charcoal filter can be activated
or deactivated.
The system switches automatically to the
air recirculation mode, if the

charcoal filter is switched on

carbon monoxide (CO) or nitrogen
oxide (NO
X) concentration of the out-
side air increases beyond a predeter-
mined levelActivating
Press buttone (page 185).
The indicator lamp on the button
comes on.
i
Press and hold button, for approx.
2 seconds. The side windows and or
tilt/sliding sunroof will return to their
previous position. You can release
button, once the opening proce-
dure has begun. The windows and
tilt/sliding sunroof continue opening
until they have reached their previous
position.
A window or tilt/sliding sunroof will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof switch af-
ter it was closed with button,.
A window or tilt/sliding sunroof that
was moved will remain in its current po-
sition if button, i s u se d to re -ope n
the remaining windows or tilt/sliding
sunroof.
i
The automatic air recirculation mode
does not function if theA/C mode is
deactivated (indicator lamp on
button9 not lit), or if the
outside temperature has fallen
below 5°C (41°F).
i
The activated charcoal filter should be
switched off when windows fog up on
the inside, or if the passenger compart-
ment needs to be quickly heated or
cooled down.
i
The activated charcoal filter should be
switched off when windows fog up on
the inside, or if the passenger compart-
ment needs to be quickly heated or
cooled down.