2003 MERCEDES-BENZ CLK320 COUPE Owner's Manual

153 Controls in detail
Good visibility
Rear window sunshade*
The switch is located in the center console.
Turn the key to starter switch position
1 or 2. Vehicles with KEYLESS-GO*:
press the start/stop button once or
twice.

Press the switch briefly at 1 to raise the
sunshade.

Press the switch briefly at 2 to lower
the sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
Warning!
G
When operating the rear window sunshade,
ma ke s ur e th a t th er e is no da nge r o f an y o ne
being harmed by the raising or lowering pro-
cedure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing the up-
per or lower half of the switch.
Briefly press upper or lower half of the
switch again to raise or lower the rear win-
dow sunshade completely.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and⁄or serious
personal injury.

154 Controls in detailAutomatic climate control
Automatic climate control

155 Controls in detail
Automatic climate control
Automatic climate control panel
Item
1
Left side air vent, adjustable
2
Left center air vent, adjustable
3
Air volume control for center air
vents
4
Right center air vent, adjustable
5
Right side air vent, adjustable
6
Automatic climate control panel
7
Air volume control for far right air
vent
8
Thumbwheel for lowering tempera-
ture, center and side air vents
9
Air volume control for far left air
ventiFor draft-free ventilation, move the slid-
ers for the center air vents to the mid-
dle position.
Item
1
Temperature control, left, lowering
2
Temperature control, left, raising
3
Left-side air distribution (automatic
or manual operation)
4
Activated charcoal filter
5
Display
6
Right-side air distribution (automat-
ic or manual operation)
7
Temperature control, right, raising
8
Temperature control, right,
lowering
9
Rear window defroster
10
AC cooling on/offResidual heat/ventilation
11
Air volume control
12
Automatic climate control on/off
(complete system)
13
Air recirculation
14
Defrosting

156 Controls in detailAutomatic climate controlThe 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 en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the economy mode AC
OFF
is se-
lected (
page 163).
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.
iIf the vehicle interior is hot, ventilate
the interior before driving off.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.

157 Controls in detail
Automatic climate control
Setting the temperature
Use temperature controls (
page 155)1
and2 for the left side or7 and8 for the
right side to separately adjust the air tem-
perature 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).Increasing

Push temperature control2 and/or7.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing

Push temperature control1 and/or8.
The automatic climate control system
will correspondingly adjust the interior
air temperature.Adding outside air

Turn thumbwheel8 in dashboard
(page 154) to increase flow of out-
side air through air vents for center, left
and right sides, as well as dashboard
top center and rear passenger com-
partment.
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.

158 Controls in detailAutomatic climate controlAdjusting air distribution
Use the air distribution controls7 and 9
(page 154) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:Adjusting manually

Press left or right
U
button.
The
U
pops out, the
a
, Z
,
X
and
Y
symbols are visible. Air
distribution can be adjusted manually.
Adjusting automatically

Press left or right
U
button again.
The
a
, Z
, X
and
Y
sym-
bols are no longer visible. The air distri-
bution is adjusted automatically.Windshield fogged on the outside

Switch the windshield wipers on.

Switch to manual mode.

Close the air vent at dashboard top
center.

Turn the air distribution control
to
a
or
Y
.
Symbol
Function
a
Directs air through the center,
side and rear passenger com-
partment air vents
Z
Directs air to the windows
X
Directs air into the entire vehi-
cle interior
Y
Directs air to the footwells

159 Controls in detail
Automatic climate control
Adjusting air volume
Adjusting manually
Seven blower speeds are available.
Press left
M
or right
Q
s i d e o f a i r
volume control switch until the re-
quested blower speed is attained.
The display
Auto
disappears and the
automatic mode is switched off. The
selected blower speed is shown in the
display.
Adjusting automatically

Press left or right
U
button until it
clicks in.
The
a
, Z
, X
and
Y
sym-
bols are no longer visible. The air vol-
ume is adjusted automatically.
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, the display “MAXCOOL” appears.
This provides the fastest possible cooling
of the vehicle interior (when windows and
sliding/pop-up roof are closed).
Defrosting
Activating
Press button
P
(page 155).
The indicator lamp on the button lights
up.
Switch off air recirculation, if selected.

Press button
,
(page 155).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press button
P
(page 155).
The indicator lamp on the button goes
out. Defrosting is turned off.
iThese settings should only be selected
for a short time.

160 Controls in detailAutomatic climate controlAir 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.Activating

Press button
,
(page 155).
The indicator lamp on the button lights
up.
Deactivating

Press button
,
(page 155).
The indicator lamp on the button goes
out.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
iIf you keep button
,
pressed, the
side windows and the sliding/pop-up
roof* will be closed.
The air recirculation mode is activated
automatically:


at high outside temperatures


if the concentration of carbon mon-
oxide and nitrogen oxide in the out-
side air increases, for example in a
tunnel
Please note that the charcoal filter
must be activated (
page 161) for the
air recirculation mode to be activated
automatically.
If you have turned off the air condition-
ing system (
page 163) or the outside
temperature is below 41°F (5°C), the
air recirculation mode will not switch on
automatically.
iIf you keep button
,
pressed, the
side windows and the sliding/pop-up
roof will be returned to their previous
position.