2006 MERCEDES-BENZ CLK350 Owner's Manual

192 Controls in detailClimate control (CLK 350)Windshield fogged on the outside
Switch the windshield wipers on
(page 54).

Press button U (
page 187).
The indicator lamp on the button
comes on. Air distribution and air vol-
ume are adjusted automatically.
If the automatic mode of the climate con-
trol is switched off:

Turn air distribution control4 to
aor Y (
page 187).
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 187).
The indicator lamp on the button
comes on.
iKeep 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 194) is activated, or
press buttonP or0.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
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
approximately 30 minutes.

193 Controls in detail
Climate control (CLK 350)
Deactivating
Press button, (
page 187).
The indicator lamp on the button goes
out.
Warning!
G
Never operate the side 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 side win-
dows can be immediately halted by
releasing the, button or by pressing or
pulling the respective window switch.iIf you press and hold button,, the
side windows will close.
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 will return to their previ-
ous position.
A side window will only return to its pre-
vious position if it has not been moved
to another position using the respec-
tive side window switch after it was
closed with button,. A side win-
dow that was moved will remain in its
current position if button, is used
to re-open the remaining side windows.

194 Controls in detailClimate control (CLK 350)Air conditioning
The cooling function, is 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 climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.

Press button2(
page 187).
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 condition-
ing.

Press button2(
page 187) 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.

195 Controls in detail
Climate control (CLK 350)
Rear passenger compartment adjustable air vents
The air conditioning for the rear passenger
compartment is controlled via the climate
control panel (
page 187).The air vents for the rear passenger
compartment are located in the rear
center console.
1Thumbwheel for air volume control for
center air vents
2Left center air vent
3Right center air ventAdjusting air distribution

Push the slide for the left center
vent2 or right center vent3 to the
left, right, up or down.
The air flow is directed in the corre-
sponding direction.
Adjusting air volume

Turn thumbwheel1 to the left or right.
The air volume is increased or
decreased.
iThe temperature at the center air vents
for the rear passenger
compartment2 and3 (
page 195)
is the same as at the dashboard center
air vents.
iFor draft-free ventilation, push
slides2 and3 upward.

196 Controls in detailAutomatic climate control (CLK 500/CLK 55 AMG)

197 Controls in detail
Automatic climate control (CLK 500/CLK 55 AMG)
Canada only
USA only
Item
1
Left side air vent, adjustable
2
Thumbwheel for air volume control
for center air vents
3
Right side air vent, adjustable
4
Automatic climate control panel
5
Right center air vent, adjustable
6
Thumbwheel for air volume control
for right side center air vent
7
Thumbwheel for air volume control
for left side center air vent
8
Left center air vent, adjustableiFor draft-free ventilation, move the slid-
ers for the center air vents1, 3, 5,
8 to the middle position.
Item
1
Left side air distribution control
2
Front defroster
3
Temperature control, left, raising
4
Display
5
Air volume control, raising
6
Temperature control, right, raising
7
Rear window defroster
8
Right side air distribution control
9
Charcoal filter
a
AC cooling on/offResidual heat/ventilation
(Canada only)
b
Temperature control, right, lowering
c
Air volume control, lowering
d
Temperature control, left, lowering
e
Air recirculation
f
Automatic climate control on/off
(complete system)
g
Air distribution and air volume
(automatic mode)Item

198 Controls in detailAutomatic climate control (CLK 500/CLK 55 AMG)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
enters the passenger compartment
through the air distribution system.
The air conditioning will not engage (no
cooling) if the A/C mode is deactivated
(
page 206).
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 controls (
page 197) to
direct the air to air vents in the vehicle inte-
rior that are not in the immediate area of un-
protected 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.
iSevere 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 252). The automatic climate
control will then adjust the interior
temperature to the set value much
faster.
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.

199 Controls in detail
Automatic climate control (CLK 500/CLK 55 AMG)
Deactivating the automatic climate control system
Deactivating
Press button´ (
page 197).
The indicator lamp on the button´
comes on.
Reactivating

Press button´ (
page 197).
The indicator lamp on the button´
goes out.Operating the climate control system
in automatic mode
Activating
Press buttonU (
page 197) 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 197) to sepa-
rately adjust the air temperature on
each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
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.
iWhen the air conditioning is switched
off, the outside air supply and circula-
tion are also switched off. Only choose
this setting for a short time. Otherwise
the windows could fog up.
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.
In automatic mode, cooling with dehu-
midify is switched on. This function can
be switched off if necessary.iYou can switch the automatic climate
control system on and off for each side
of the passenger compartment as de-
sired.