air filter MERCEDES-BENZ C230 KOMPRESSOR COUPE 2002 CL203 Owner's Manual

155 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Climate control
The system is always at operational readiness, except
when manually switched off.
The climate control only operates with the engine
running.
The temperature selector should be left at the desired
temperature setting. The temperature selected is
reached as quickly as possible.
The system will not heat or cool any quicker by setting a
higher or lower temperature.
The desired interior temperature can be selected
separately for the left and right side of the passenger
compartment. Adjust the temperature settings in small
increments.
The climate control removes considerable moisture from
the air during operation in the cooling mode. It is
normal for water to drip on the ground through ducts in
the underbody.
The air conditioning will not engage (no cooling) if the
economy mode S is selected, see page 159. Notes:
Do not obstruct the air flow by placing objects on the air
flow-through exhaust slots below the rear window.
Also keep the air intake grill in front of the windshield
free of snow and debris.
The storage compartment between the front seats can be
ventilated. See page 171 for notes on ventilating the
storage space under the armrest in the center console.
The air conditioner switches itself off for its own
protection if refrigerant is lost. No cooling will then take
place. Economy mode S cannot be switched off. Have
the air conditioner checked by a Mercedes-Benz Center
should this happen.
If the vehicle interior has been heated by direct sunlight
and is very hot, ventilate the interior (open door or
windows for a short period) before driving off.
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.

162 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Display and controls
1Temperature control, left, lowering
2Temperature control, left, raising
3Air distribution control switch left (automatic,
manual operation)
4Activated charcoal filter, see page 168
5Display
6Air distribution control switch right (automatic,
manual operation)7Temperature control, right, raising
8Temperature control, right, lowering
9Rear window defroster, see page 170
10Economy mode, see page 169
Residual engine heat utilization, see page 169
11Air volume control +
switch on system
12Air volume control -
switch off system
13Air recirculation, see page 167
14Defrosting, see page 166
Important!
This vehicle is equipped with an air conditioning
system that uses R-134a (HFC: hydrofluorocarbon) as a
refrigerant. Repairs should always be performed by a
qualified technician, and refrigerant should be collected
in a recovery system for recycling.
P83.40-2303-26

164 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Notes:
Do not obstruct the air flow by placing objects on the air
flow-through exhaust slots below the rear window.
Also keep the air intake grill in front of the windshield
free of snow and debris.
The storage compartment between the front seats can be
ventilated. See page 171 for notes on ventilating the
storage space under the armrest in the center console.
The air conditioner switches itself off for its own
protection if refrigerant is lost. No cooling will then take
place. Economy mode S cannot be switched off. Have
the air conditioner checked by a Mercedes-Benz Center
should this happen.
If the vehicle interior has been heated by direct sunlight
and is very hot, ventilate the interior (open door or
windows for a short period) before driving off.
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.Basic setting – automatic mode
In the automatic mode the automatic climate control
cools or heats the interior depending on the direction
and strength of the sunlight, outside temperature and
the selected interior temperature of the vehicle. With
the automatic mode switched off, the air volume and
distribution can still be set manually.
Briefly press left or right U button. The h, j
and k symbols will no longer be visible.
The economy mode and air recirculation functions will
be switched off. The automatic blower will be activated
at the same time.
We recommend to set the temperature switches on the
left and right to 72
°F (22
°C). Please make changes from
this setting to suit your personal requirements.
Heating mode:
To lower headroom temperature, use thumbwheel
(4, page 160).
Air conditioning mode:
Open air outlets at dashboard top center (7, page 160)
for an even air distribution.

168 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Activated charcoal filter
An activated charcoal filter markedly reduces bad odors
and removes pollutants from air entering the passenger
compartment.
Select activated charcoal filter:
The indicator lamp in the button eis not
illuminated.
Press e button briefly. The indicator lamp in the
button illuminates.
Switch off activated charcoal filter:
The indicator lamp in the button eis illuminated.
Press ebriefly. The indicator lamp in the button
goes out.
The system switches automatically to the air
recirculation mode, if the carbon monoxide (CO) or
nitrogen oxides (NO
X) concentration of the outside air
increases beyond a predetermined level.
The automatic air recirculation mode does not function
if economy mode S is selected or if the outside
temperature has fallen below 40
°F(5
°C). The activated charcoal filter should be switched off
when windows fog up on the inside, or if the passenger
compartment needs to be quickly heated or cooled
down.
Switching on the activated charcoal filter and activating
convenience closing of power windows:
The indicator lamp in the e button is not
illuminated.
Press button e for more than 2 seconds, the side
windows will be closed. The indicator lamp in the button
illuminates.
Switching off activated charcoal filter and activating
convenience opening:
The indicator lamp in the e button is illuminated.
Press button e for more than 2 seconds, the side
windows return to the position they were in before
closing. The indicator lamp in the button goes out.
A window opened manually after convenience closing
will no longer be returned to the position it was in
before closing when convenience opening is selected.

385 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
Index
AAdding engine oil........................................................... 318
Air pump ......................................................................... 322
Airbags .............................................................................. 72
ANTILOCK BRAKE SYSTEM
Malfunction and warning message........................ 293
Antilock brake system (ABS) ....................................... 272
Antitheft alarm system ................................................... 44
Ashtrays........................................................................... 211
Audio system
Button and soft key operation................................. 176
Cassette mode ........................................................... 182
CD changer ................................................................ 187
CD mode ..................................................................... 186
Operating and display elements............................. 174
Operating safety ........................................................ 173
Operation.................................................................... 176
Operation Audio and telephone .............................. 173
Radio mode ................................................................ 179
Telephone operation ................................................. 190Audio systems................................................................. 108
Cassette player .......................................................... 110
CD Player .................................................................... 109
Radio ........................................................................... 108
Automatic central locking .............................................. 40
Automatic climate control ............................................ 160
Activated charcoal filter ........................................... 168
Adjustable air outlets, rear passenger
compartment ......................................................... 172
Air recirculation ........................................................ 167
Air volume, manual .................................................. 165
Basic setting............................................................... 164
Defrosting ................................................................... 166
Display and controls ................................................. 162
Dust filter.................................................................... 164
Economy mode .......................................................... 169
Front center console storage
compartment ventilation..................................... 171
Residual engine heat utilization ............................. 169
Special settings ......................................................... 165
Windows fogged up on the outside ........................ 166
Automatic transmission ............................................... 246
Fluid level ................................................................... 317
Transmission selector lever,
manually unlocking ............................................ 344

386 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
BBabySmart
TM airbag deactivation system..................... 69
Battery ............................................................................. 336
Block heater .................................................................... 266
Brake assist system (BAS) ............................................ 271
Bulbs
See Replacing bulbs ................................................. 345
CCD changer installed ..................................................... 187
Cellular telephone ......................................................... 219
Center console .................................................................. 24
Central locking switch .................................................... 38
Central locking system ................................................... 31
Automatic central locking ......................................... 40
Central locking switch ............................................... 38
Choosing global or selective mode........................... 33
Doors ............................................................................. 36
General notes............................................................... 30
Locking and unlocking with remote control .......... 33
Mechanical keys .......................................................... 35
Obtaining replacement keys ..................................... 29
Summer opening/convenience feature ................... 34Vehicle keys ................................................................. 28
Changing wheels........................................................... 327
Inflating the collapsible spare tire ........................ 333
Storing spare wheel in wheel well ........................ 334
Check regularly and before a long trip...................... 280
Child seat
See Infant and child restraint systems .................... 82
Climate control ............................................................... 152
Adjustable air outlets, rear passenger
compartment ......................................................... 172
Air recirculation ........................................................ 158
Basic setting............................................................... 156
Defrosting ................................................................... 157
Display and controls ................................................. 154
Dust filter.................................................................... 155
Economy mode .......................................................... 159
Front center console storage compartment
ventilation ............................................................. 171
Residual engine heat utilization ............................. 159
Special settings ......................................................... 156
Windows fogged up on the inside .......................... 157
Windows fogged up on the outside ................ 157, 166
COMAND, radio and telephone................................... 226
Combination switch ....................................................... 148
Control and operation of radio transmitters ............. 226
Coolant level ................................................................... 319