Climate control MERCEDES-BENZ C240 2002 W203 Owner's Manual

2 Contents
Instrument cluster ........................... 98
Multifunction steering wheel,
multifunction display ............... 102
Trip and main odometer
and sub menu ............................ 106
Audio systems ................................ 108
Radio ............................................ 108
CD player ..................................... 109
Cassette player ............................110
Telephone .........................................111
Navigation system ...........................116
Trip computer ..................................117
Malfunction/warning
message memory .......................119
Individual settings ......................... 121
Setting the audio volume .............. 136
Coolant temperature gauge .......... 137
Flexible service system
(FSS) ............................................ 138
Engine oil level indicator .............. 141
Engine oil consumption ................ 142
Exterior lamp switch ..................... 143
Headlamp mode ............................. 144Night security illumination ......... 146
Locator lighting .......................... 147
Headlamp cleaning system .......... 147
Combination switch ...................... 148
Hazard warning flasher
switch .......................................... 151
Climate control ...............................152
Automatic climate control .............160
Front center console storage
compartment ventilation .......... 171
Rear passenger compartment
adjustable air outlets ............... 172
Operation Audio and telephone .. 173
Operating safety ............................ 173
Operating and display elements .. 174
Button and soft key operation ...... 176
Operation ......................................... 176
Switching on and off ...................... 176
Adjusting the volume ................... 177
Audio functions ............................. 177
Bass ................................................. 177
Treble .............................................. 177
Balance ............................................ 178
Centering all audio functions ...... 178Audio system
tone level selection ................... 179
Radio mode ..................................... 179
Selecting radio mode ..................... 179
Selecting the band ......................... 179
Manual tuning ................................ 180
Seek tuning ..................................... 180
Scan tuning ..................................... 180
Weather Band ................................. 181
Station memory .............................. 181
Storing stations automatically
(Autostore) ................................. 181
Storing stations .............................. 182
Retrieving a station
from memory ............................. 182
Direct frequency input
AM and FM only ....................... 182
Cassette mode ................................ 182
Playing cassettes ............................ 182
Cassette eject .................................. 183
Track selection ............................... 184
Track search
forwards/backwards ................. 184
Fast forward/reverse ..................... 184
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24 Instruments and controls
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
Center console1Left front seat heater switch, see page 58
2Rear window sunshade switch (optional), see
page 205
3ESP (electronic stability program) control switch,
see page 278
4Hazard warning flasher switch, see page 151
5Central locking switch, see page 39
6Rear seat head restraints switch, see page 60
7Antitheft alarm system, see page 46
Switch for tow-away protection, see page 47
8Right front seat heater switch, see page 58
9AIRBAG OFF indicator lamp, see page 292
10COMAND system (optional), see separate
operating instructions, or
audio system, see page 173
11Climate control (C 240), see page 152
Automatic climate control (C 320) see page 160
Rear window defroster, see page 170
P 68.10-2501-27
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27 Contents - Operation
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Malfunction/warning
message memory .......................119
Individual settings ......................... 121
Setting the audio volume .............. 136
Coolant temperature gauge .......... 137
Flexible service system
(FSS) ............................................ 138
Engine oil level indicator .............. 141
Engine oil consumption ................ 142
Exterior lamp switch ..................... 143
Headlamp mode ............................. 144
Night security illumination ......... 146
Locator lighting .......................... 147
Headlamp cleaning system .......... 147
Combination switch ...................... 148
Hazard warning flasher
switch .......................................... 151Climate control ...............................152
Automatic climate control .............160
Front center console storage
compartment ventilation .......... 171
Rear passenger compartment
adjustable air outlets ............... 172
Operation Audio and telephone .. 173
Operating safety ............................ 173
Operating and display elements .. 174
Button and soft key operation ...... 176
Component malfunctions ..............195
Power windows ...............................197
Sliding/pop-up roof ....................... 200
Interior lighting ............................. 203
Rear window sunshade ................ 205
Sun visors ....................................... 206
Vanity mirrors ............................... 206Interior ............................................207
Storage compartments
and armrests ..............................207
Glove box .....................................208
Cup holder ...................................... 211
Ashtrays .......................................... 213
Lighter ............................................. 215
Parcel net in
front passenger footwell .......... 216
Ski sack ........................................... 216
Enlarged cargo area ....................... 221
Split folding rear seat bench ........ 221
Loading instructions
(vehicle with
enlarged cargo area) .................223
Cellular telephone .........................224
Telephone, general ........................225
Garage door opener .......................226
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152 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Climate control (model C 240)
P 68.10-2164-29
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153 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Display and controls
2Air volume control for left center air outlet
3Center air outlet, left, adjustable
4Thumbwheel for adding outside air at air outlets for
center, left and right sides, as well as dashboard top
center and rear passenger compartment
5Center air outlet, right, adjustable6Air volume control for right center air outlet
7Air volume control and air outlet on dashboard top
center
8Air volume control for side air outlet
9Side air outlet, adjustable
10Side defroster outlet, fixed
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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.
P 83.30-3425-26
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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
pl ac e. Ec on omy mod e S cann ot be switched of f . 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.
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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.
Select any of the six air volume speeds and the air
distribution.
Air distribution, manual:
The air distribution for the right and left side operate
together.
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.
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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 (7, page 152).
Switch to manual mode.
Turn air distribution control switch to positionh
ork.
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158 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Air recirculation
Select air recirculation:
The indicator lamp in the O button is not
illuminated.
Press button O briefly. The indicator lamp in the
button illuminates.
To switch off the air recirculation:
The indicator lamp in the O button is illuminated.
Press button O briefly. The indicator lamp in the
button goes out.
Switching on air recirculation and activating
convenience closing of power windows and sliding /
pop-up roof:
The indicator lamp in the O button is not
illuminated.
Press button O for more than 2 seconds, the side
windows and the sliding / pop-up roof will be closed. The
indicator lamp in the button illuminates.Switching off air recirculation and activating
convenience opening:
The indicator lamp in the O button is illuminated.
Press button O for more than 2 seconds, the side
windows and the sliding / pop-up roof return to the
position they were in before closing.
A window or the sliding / pop-up roof opened manually
after convenience closing will no longer be returned to
the position it was in before closing when convenience
opening is selected.
The system automatically switches from air
recirculation to fresh air:
•after 30 minutes if the outside temperature is above
about 40
°F(5
°C),
•after 5 minutes if the outside temperature is below
about 40
°F(5
°C),
•after 5 minutes if economy mode S is selected.
The system switches automatically to air recirculation at
high outside temperatures. A quantity of outside air is
added after a maximum of 30 minutes.
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.
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