2006 MERCEDES-BENZ CLK COUPE Owner's Manual

200 Controls in detailAutomatic climate control (CLK 500)Deactivating
Press buttonU (
page 197) 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 197) 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

Press and hold temperature button3
and/or6 (
page 197) until the de-
sired temperature appears in the dis-
play of the control panel4
(
page 197).
The automatic climate control system
will correspondingly adjust the interior
air temperature.Decreasing

Press and hold temperature buttonb
and/ord (
page 197) until the de-
sired temperature appears in the dis-
play of the control panel4
(
page 197).
The automatic climate control system
will correspondingly adjust the interior
air temperature.
iIf 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.
iIf 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.

201 Controls in detail
Automatic climate control (CLK 500)
Adjusting air distribution
Use the air distribution controls1 and8
(page 197) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
located on the controls:

Turn air distribution control1 or8
(page 197) to the desired symbol.
The indicator lamp on the buttonU
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 2, 6 and 7
(page 196) upward.
The center air vents 5 and 8 and side
air vents 1 and 3 (
page 196) are
open.Closing center and side air vents

Turn thumbwheels 2, 6 and 7
(page 196) downward.
The center air vents 5 and 8 and side
air vents 1 and 3 (
page 196) are
closed.
Adjusting air volume
Use buttonU (
page 197) for auto-
matic mode or air volume controls

orQ (
page 197) to adjust air volume
manually.
Seven blower speeds are available.

Press button
to decrease
orQ (
page 197) to increase air
volume to the desired level.
The indicator lamp on the buttonU
goes out.
The automatic air distribution remains
switched on.
Symbol
Function
Z
Directs air to the windshield
and the side defroster vents
b
Directs air into the entire
vehicle interior
Y
Directs air to the footwells
a
Directs air through the center,
side and rear passenger
compartment air vents
iYou can also turn the air distribution
control to a position between two
symbols.

202 Controls in detailAutomatic climate control (CLK 500)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 or0
(page 197).
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 or0
(page 197) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.Windshield fogged on the outside

Switch the windshield wipers on
(page 54).
If the automatic mode of the automatic cli-
mate control is switched off:

Turn air distribution control1 or8
toa orY (
page 197).
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU (
page 197) 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).
iKeep this setting selected only until the
windshield or the side windows are
clear again.
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.

203 Controls in detail
Automatic climate control (CLK 500)
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 197).
The indicator lamp on the button
comes on.
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 206) is activated, or
press buttonP or 0.
iThe 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.
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 procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by
releasing the, button or by pressing or
pulling the respective window switch. The
closing of the tilt/sliding sunroof* can be
immediately halted by releasing the,
button or by moving the tilt/sliding sunroof*
switch in the overhead control panel in any
direction.iIf you press and hold button,, the
side windows and tilt/sliding sunroof*
will close.

204 Controls in detailAutomatic climate control (CLK 500)Deactivating
Press button, (
page 197).
The indicator lamp on the button goes
out.
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 level
iThe air recirculation mode is deactivat-
ed automatically:

after 5 minutes if the outside
temperature is below
approximately 41°F (5 °C)


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


after 30 minutes if the outside
temperature is above
approximately 41°F (5 °C)
iIf you press and hold button,, the
side windows and tilt/sliding sunroof*
will return to their previous position.
A side window or tilt/sliding sunroof*
will only return to its previous position
if it has not been moved to another po-
sition using the respective side window
switch or tilt/sliding sunroof* switch
after it was closed with button,.
A side window or tilt/sliding sunroof*
that was moved will remain in its cur-
rent position if button, is used to
re-open the remaining side windows or
tilt/sliding sunroof*.
iThe automatic air recirculation mode
does not function if theA/C (indicator
lamp on button2 or 9 not lit)
mode is deactivated, or if the outside
temperature has fallen below 41°F
(5°C).

205 Controls in detail
Automatic climate control (CLK 500)
Activating
Press buttone (
page 197).
The indicator lamp on the button
comes on.Deactivating

Press buttone (
page 197).
The indicator lamp on the button goes
out.
iIf you press and hold buttone, the
side windows and tilt/sliding sunroof*
will close.iThe 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.
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 procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by
releasing thee button or by pressing or
pulling the respective window switch. The
closing of the tilt/sliding sunroof* can be
immediately halted by releasing thee
button or by moving the tilt/sliding sunroof*
switch in the overhead control panel in any
direction.
iIf you press and hold buttone, the
side windows and tilt/sliding sunroof*
will return to their previous position.
A side window or tilt/sliding sunroof*
will only return to its previous position
if it has not been moved to another po-
sition using the respective side window
switch or tilt/sliding sunroof* switch
after it was closed with buttone.
A side window or tilt/sliding sunroof*
that was moved will remain in its cur-
rent position if buttone is used to
re-open the remaining side windows or
tilt/sliding sunroof*.

206 Controls in detailAutomatic climate control (CLK 500)Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the
vehicle will then no longer be cooled or
dehumidified.

Press button2or9
(page 197).
The indicator lamp on the button goes
out.
The cooling function switches off after
a short delay.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condi-
tioning.

Press button2or9
(page 197) again.
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.
iCondensation may drip out from under-
neath 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.
!If the air conditioning cannot be turned
on again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.

207 Controls in detail
Automatic climate control (CLK 500)
Residual heat and ventilation* (Canada only)
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

Switch off the ignition (
page 36).

Press button9(
page 197).
The indicator lamp on the button
comes on.Deactivating

Press button9(
page 197).
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
iHow long the system will provide
heating depends on

the coolant temperature


the temperature set by the operator
The blower will run at speed setting 1
regardless of the air distribution
control setting.