2002 MERCEDES-BENZ C230 KOMPRESSOR COUPE page 30

154 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Display and controls
1Air volume
2Temperature control, left
3Temperature control, right
4Air distribution control switch5Rear window defroster, see page 170
6Economy mode, see page 159
Residual engine heat utilization, see page 159
7Air distribution and air volume (automatic)
8Air recirculation, see page 167
9Defrosting, see page 157
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.

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.

156 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Basic setting – automatic mode
In the automatic mode the climate control cools or heats
the interior depending on outside temperature and the
selected interior temperature. With the automatic mode
switched off, the air volume and distribution can still be
set manually.
Press U button. Air volume and distribution are
controlled automatically.
We recommend to set the left and right temperature
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 152).
Air conditioning mode:
Open air outlets at dashboard top center (7, page 152)
for an even air distribution.Special settings (use only for short duration)
Air distribution and air volume, manual
Press U button. The indicator lamp in the button will
go out.
The air distribution for the right and left side operate
together.
Select any of the six air volume speeds and the air
distribution.
Air distribution, manual:
hAir from the center, side, dashboard top center
and rear passenger compartment air outlets.
jAir from the windshield, side defroster and rear
passenger compartment air outlets.
kAir from the center, side, footwell, rear footwell
and rear passenger compartment air outlets.
To return to automatic mode:
Press the U button. The indicator lamp in the button
illuminates.

157 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Defrosting
Press the P button. The indicator lamp in the button
illuminates.
Switch off air recirculation, if selected. Press
buttonO, the indicator lamp in the button will go
out.
Close center air outlets.
Turn wheels (8, page 152) up to open left and right side
air outlets (9, page 152). Adjust side air outlets upward.
Pressing the switch again returns the system to the
previous setting.Windows fogged up on the inside
Switch off the economy mode, if selected. Press
buttonS. The indicator lamp in the button will go
out.
Switch off air recirculation, if selected. Press
buttonO. The indicator lamp in the button will go
out.
Set blower to the maximum blower speed.
Press the P button. The indicator lamp in the button
illuminates.
Increase temperature setting.
Open the side air outlets (9, page 152) and direct them
onto the side windows.
Windshield fogged up on the outside
Switch on the windshield wiper.
Close air outlet at dashboard top center.
Switch to manual mode.
Turn air distribution control switch to positionh
ork.

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

163 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Temperature, left
2Temperature, right
3Air volume
4Automatic mode is selectedAutomatic climate control
The system is always at operational readiness, except
when manually switched off.
The automatic 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 and air distribution
can be selected separately for the left and right side of
the passenger compartment. Adjust the temperature
settings in small increments.
The automatic 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 169.

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.

166 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Defrosting
Press the P button. The indicator lamp in the button
illuminates.
Maximum heated and automatically controlled amount
of air is directed to the defroster and windshield air
outlets.
Switch off air recirculation, if selected: Press
buttonO. The indicator lamp in the button will go
out.
Pressing the P button again returns the system to
the previous setting.Windows fogged up on the inside
Switch off the economy mode, if selected:
Press buttonS. The indicator lamp in the button will
go out.
Switch off air recirculation, if selected:
Press buttonO. The indicator lamp in the button will
go out.
Set blower to the maximum blower speed.
Increase temperature setting.
Open the side air outlets and direct them onto the side
windows.
Windshield fogged up on the outside
Switch on the windshield wiper.
Close air outlet at dashboard top center (7, page 161).
Switch to manual mode.
Turn air distribution control switch to positionh
ork.