2006 MERCEDES-BENZ C230 air condition

Contents
Trip computer menu..................... 155
TEL menu* ................................... 157
Manual transmission ......................... 160
Shifting into reverse ..................... 161
Automatic transmission* ................... 162
Gear selector lever position ......... 164
Driving tips ................................... 165
Gear ranges ................................. 166
Automatic shift program .............. 167
One-touch gearshifting................. 168
Emergency operation
(Limp Home Mode) ...................... 169
Good visibility .................................... 170
Headlamp cleaning system* ........ 170
Rear view mirrors ......................... 170
Sun visors .................................... 173
Rear window sunshade* .............. 174
Rear window defroster ................. 175
Climate control .................................. 176
Deactivating the climate control
system ......................................... 179
Operating the climate control
system in automatic mode ........... 179
Setting the temperature ............... 180Adjusting air distribution and
volume .......................................... 180
Adjusting air volume ..................... 181
Front defroster.............................. 181
Air recirculation mode .................. 182
Air conditioning............................. 183
Rear passenger compartment
adjustable air vents....................... 184
Automatic climate control*
(Canada only) ..................................... 186
Deactivating the automatic climate
control system .............................. 189
Operating the climate control
system in automatic mode............ 189
Setting the temperature................ 190
Adjusting air distribution............... 190
Adjusting air volume ..................... 191
Front defroster.............................. 191
Maximum cooling MAXCOOL ........ 192
Air recirculation mode .................. 192
Charcoal filter ............................... 194
Air conditioning............................. 196
Residual heat and ventilation ........ 197
Rear passenger compartment
adjustable air vents....................... 197Audio system...................................... 199
Audio and telephone, operation .... 199
Operating safety ........................... 199
Operating and display elements ... 200
Button and soft key operation ...... 202
Operation...................................... 202
Radio operation ............................ 207
Introduction to satellite radio*
(USA only) ..................................... 211
CD mode....................................... 216
GSM network phones ................... 225
TDMA or CDMA network phones .. 231
Emergency calls “911” ................. 237
Power windows .................................. 240
Opening and closing the windows 240
Synchronizing power windows ...... 242
Summer opening feature .............. 243
Convenience closing feature......... 243
Power tilt/sliding sunroof* ................ 244
Opening and closing the power
tilt/sliding sunroof........................ 244
Synchronizing the power
tilt/sliding sunroof........................ 246
Driving systems .................................. 247
Cruise control ............................... 247

ContentsTechnical data.................................. 425
Parts service ...................................... 426
Warranty coverage ............................. 427
Loss of Service and Warranty
Information Booklet...................... 427
Identification labels............................ 428
Layout of poly-V-belt drive ................. 429
Engine ................................................ 430
Rims and Tires ................................... 432
Same size tires ............................. 434
Mixed size tires ............................ 435
Minispare wheel ........................... 436
Electrical system................................ 437
Main dimensions................................ 438
Weights .............................................. 439Fuels, coolants, lubricants, etc. ......... 440
Capacities .................................... 440
Engine oils.................................... 442
Engine oil additives ...................... 442
Air conditioning refrigerant .......... 442
Brake fluid .................................... 442
Premium unleaded gasoline ......... 443
Gasoline additives ........................ 443
Fuel requirements ........................ 444
Coolants....................................... 444
Windshield washer and headlamp
cleaning system* ......................... 448
Technical terms............................... 449Index................................................. 455

11 Introduction
Operator’s Manual
Important notice for California retail
buyers and lessees of Mercedes-Benz automobiles
Under California law you may be entitled to
a replacement of your vehicle or a refund
of the purchase price or lease price, if
Mercedes-Benz USA, LLC and/or its au-
thorized repair or service facilities fail to fix
one or more substantial defects or mal-
functions in the vehicle that are covered by
its express warranty after a reasonable
number of repair attempts. During the pe-
riod of 18 months from original delivery of
the vehicle or the accumulation of
18 000 miles (approximately 29 000 km)
on the odometer of the vehicle, whichever
occurs first, a reasonable number of repair
attempts is presumed for a retail buyer or
lessee if one or more of the following
occurs: (1) the same substantial defect or mal-
function results in a condition that is
likely to cause death or serious bodily
injury if the vehicle is driven, that de-
fect or malfunction has been subject to
repair two or more times, and you have
directly notified Mercedes-Benz USA,
LLC in writing of the need for its repair,
(2) the same substantial defect or mal-
function of a less serious nature than
category (1) has been subject to repair
four or more times and you have direct-
ly notified us in writing of the need for
its repair, or(3) the vehicle is out of service by reason
of repair of the same or different sub-
stantial defects or malfunctions for a
cumulative total of more than
30 calendar days.
Written notification should be sent to us,
not a dealer, at Mercedes-Benz USA, LLC,
Customer Assistance Center,
One Mercedes Drive, Montvale,
NJ 07645-0350.

178 Controls in detailClimate controlThe climate control is operational when-
ever the engine is running. You can oper-
ate the climate control system in either the
automatic or manual mode. The system
cools or heats the interior depending 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 modeA/C is deactivated
(
page 183).
Warning!
G
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite on unpro-
tected skin in the immediate area of the air
vents. Always keep sufficient distance be-
tween unprotected parts of the body and the
air vents. If necessary, use the air distribu-
tion control (
page 180) to direct the air to
air vents in the vehicle interior that are not
in the immediate area of unprotected skin.
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.
iSevere conditions (e.g. strong air
pollution) may require replacement of
the filter before its scheduled interval.
A clogged filter will reduce the air
volume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off, see
“Summer opening feature”
(page 243). The climate control will
then adjust the interior temperature to
the set value much faster.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing
objects on the air flow-through exhaust
slots below the rear window.

181 Controls in detail
Climate control
Adjusting air volume
Six blower speeds are available.
Press buttonU (
page 177).
The indicator lamp in the button goes
out. The automatic air volume control
is switched off. The air volume is
adjusted according to the currently
selected setting.

Use the air volume control4
(page 177) to adjust the air volume.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.Activating

Press buttonP or0
(page 177).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following functions:


maximum blowing and heating
power


air flows onto the windshield and
the front side windows


the air recirculation mode is
switched off
Deactivating

Press buttonP or0
(page 177) again.
The indicator lamp on the button goes
out. Defrosting is turned off.Windshield fogged on the outside

Switch the windshield wipers on
(page 53).

Press buttonU (
page 177).
The indicator lamp on the button
comes on. Air distribution and air vol-
ume are adjusted automatically.
If the automatic mode of the climate con-
trol is switched off:

Turn air distribution control4
toaorY (
page 177).
iKeep this setting selected only until the
windshield or the side windows are
clear again.
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.

182 Controls in detailClimate controlAir recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving
through a tunnel). This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.Activating

Press button, (
page 177).
The indicator lamp on the button
comes on.
Warning!
G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 183) is activated, or
press buttonP or 0.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
The indicator lamp on button, is
not lit when the air recirculation mode
is automatically switched on.
A quantity of outside air is added after
approximately 30 minutes.Warning!
G
Never operate the side windows and the
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the closing pro-
cedure.
In the event that the closing procedure
causes potential danger, the closing of the
side windows can be immediately halted by
pressing or pulling the respective window
switch. The closing of the tilt/sliding
sunroof* can be immediately halted by
moving the tilt/sliding sunroof* switch in
the overhead control panel in any direction.
The closing of the side windows and
tilt/sliding sunroof* can be reversed by
again pressing and holding the, button.iPress and hold button, for approx.
2 seconds. The side windows and
tilt/sliding sunroof* will close. You can
release button, once the closing
procedure has begun. The windows
and tilt/sliding sunroof* continue clos-
ing until they are fully closed.

183 Controls in detail
Climate control
Deactivating
Press button, (
page 177).
The indicator lamp on the button goes
out.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.
iThe air recirculation mode is deactivat-
ed automatically:

after 5 minutes if the outside
temperature is below
approximately 41°F (5°C)


after 5 minutes if the air condition-
ing is turned off


after 30 minutes if the outside
temperature is above
approximately 41°F (5°C)
iPress and hold button, for approx.
2 seconds. The side windows and or
tilt/sliding sunroof* will return to their
previous position. You can release
button, once the opening proce-
dure has begun. The windows and
tilt/sliding sunroof* continue opening
until they have reached their previous
position.
A window or tilt/sliding sunroof* will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof* switch
after it was closed with button,. A
window or tilt/sliding sunroof* that
was moved will remain in its current po-
sition if button, i s u se d to re -open
the remaining windows or tilt/sliding
sunroof*.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.Warning!
G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.

184 Controls in detailClimate controlDeactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the climate
control system. The air in the vehicle will
then no longer be cooled or dehumidified.
Press button2 (
page 177).
The indicator lamp on the button goes
out.
The cooling function switches off after
a short delay.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.

Press button2 (
page 177).
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Rear passenger compartment
adjustable air vents
The air conditioning for the rear passenger
compartment is controlled via the climate
control panel (
page 177).
!If the air conditioning cannot be turned
on again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
iThe temperature at the center air vents
for the rear passenger
compartment1 and3 is the same as
at the dashboard center air vents.