2003 MERCEDES-BENZ C320 4MATIC WAGON climate settings

146 Controls in detailClimate controlThe climate control is operational whenev-
er the engine is running. You can operate
the climate control system in either the au-
tomatic or manual mode. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent 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 AC
OFF
mode is selected
(
page 150).
Setting the temperature
Use the temperature controls2 and3 to
separately adjust the air temperature on
each side of the passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C).
Increasing
Turn the control slightly to the right.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing

Turn the control slightly to the left.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
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.
S203 MY03_A.book Page 146 Tuesday, January 28, 2003 2:22 PM

147 Controls in detail
Climate control
Adjusting air distribution and volume
Use the air distribution control4
(page 145) to adjust the air distribution.
The following symbols are found on the
controls:Adjusting manually

Press the
U
button.
The indicator lamp on the button goes
out.

Select any of the six air volume speeds
and the air distribution.
Adjusting automatically

Press the
U
button.
The indicator lamp on the button
comes on. The air distribution and vol-
ume is adjusted automatically.
Windshield fogged on the outside

Switch the windshield wipers on.

Switch to manual mode.

Turn the air distribution control
to
a
or
Y
.
Defrosting
Activating
Press button
P
(page 145).
The indicator lamp on the button
comes on.
or

Switch off air recirculation, if selected.
Press button
O
(page 145).
The indicator lamp on the button goes
out.

Close center air vents.

Open left and right side air vents and
adjust side air vents upwards.
Symbol
Function
a
Directs air through the center,
side and rear passenger
compartment air vents
Z
Directs air to the windows
X
Directs air into the entire
vehicle interior
Y
Directs air to the footwells
iThese settings should only be selected
for a short time.
S203 MY03_A.book Page 147 Tuesday, January 28, 2003 2:22 PM

154 Controls in detailAutomatic climate control*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 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 159).
Setting the temperature
Use temperature controls1 and14 for the
left side or6 and7 for the right side to
separately adjust the air temperature on
each side of the passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C).Increasing

Push temperature control1 and/or6.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Decreasing

Push temperature control14
and/or7.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Adding outside air

Turn thumbwheel3 in dashboard
(page 153) to increase airflow of out-
side air through air vents for center, left
and right sides and rear passenger
compartment.
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.iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.
S203 MY03_A.book Page 154 Tuesday, January 28, 2003 2:22 PM

156 Controls in detailAutomatic climate control*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 “AUTO MAXCOOL” ap-
pears.
This provides the fastest possible cooling
of the vehicle interior (when windows and
sliding/pop-up roof* are closed).
DefrostingActivating

Press button
P
(page 153).
The indicator lamp on the button lights
up.
or

Switch off air recirculation, if selected.

Press button
O
(page 153).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press button
P
(page 153).
The indicator lamp on the button goes
out. Defrosting is turned off.
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.
Activating
Press button
O
(page 153).
The indicator lamp on the button lights
up.
iThese settings should only be selected
for a short time.
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.
S203 MY03_A.book Page 156 Tuesday, January 28, 2003 2:22 PM

349 Index
MB Tex upholstery 252
Plastic and rubber parts 252
Seat belts 252
Steering wheel 251
Windows 251
Windshield 49
Wiper blades 251
Climate control 144
Adjusting 147
Defogging windshield 147
Defrosting 147
Rear window defroster 149
Setting the temperature 146
Clock 23, 118
Closing
Glove box 203
Hood 235
Side windows 185
Sliding/pop-up roof 187, 290
Sliding/pop-up roof with
SmartKey 188
Tailgate 87
Trunk lid 87
Windows 184
Windows with SmartKey 186Closing sliding/pop-up roof
In an emergency 290
Cockpit 20, 339
COMAND* 340
see separate operating instructions
Combination switch 101
High beam flasher 48, 101
Turn signals 47
Windshield wipers 48
Consumer information 337
Control and operation of radio
transmitter 230
Control system 107, 340
AUDIO menu 112
Convenience submenu 126
Display digital speedometer 112
Functions 108, 111
Instrument cluster submenu 118
Lighting submenu 121
Malfunction memory menu 115
Menus 110, 111
Multifunction display 107
Multifunction steering wheel 108
NAVI menu 114
Selecting radio system 113
Settings menu 116Standard display menu 112
Submenus 109, 111
TEL* menu 131
Trip computer menu 128
Vehicle submenu 124
Convenience submenu 126
Activating easy-entry/exit
feature 126
Setting key dependency 127
Setting parking position for exterior
rear view mirror 128
Coolant 238, 334
Adding 238
Anticorrosion/antifreeze
quantity 334
Capacities 328
Checking level 238
Messages in display 265, 266
Temperature 231
Temperature gauge 104
Warning lamp 266
Coolant level
Checking 233, 238
Cruise control 190, 340
Canceling 191
Driving downhill 191
S203 MY03_A.book Page 349 Tuesday, January 28, 2003 2:22 PM