2006 MERCEDES-BENZ C55AMG cooling

Contents
Automatic transmission ..................... 155
Gear selector lever position ......... 157
Driving tips ................................... 158
Gear ranges ................................. 160
Automatic shift program .............. 161
Gear selector lever one-touch
gearshifting .................................. 162
Steering wheel gearshift control
one-touch gearshifting ................. 163
Manual shift program ................... 165
Emergency operation
(Limp-Home Mode) ...................... 168
Good visibility .................................... 169
Headlamp cleaning system* ........ 169
Rear view mirrors ......................... 169
Sun visors .................................... 171
Rear window sunshade* .............. 172
Rear window defroster ................. 173
Climate control .................................. 174
Deactivating the climate control
system ......................................... 177
Operating the climate control
system in automatic mode ........... 177
Setting the temperature ............... 178
Adjusting air distribution and
volume ......................................... 178Adjusting air volume ..................... 179
Front defroster.............................. 179
Air recirculation mode .................. 180
Air conditioning............................. 182
Rear passenger compartment
adjustable air vents....................... 183
Automatic climate control*
(Canada only) ..................................... 184
Deactivating the automatic
climate control system ................. 187
Operating the automatic climate
control system in automatic mode 187
Setting the temperature................ 188
Adjusting air distribution............... 189
Adjusting air volume ..................... 190
Front defroster.............................. 190
Maximum cooling MAXCOOL ........ 191
Air recirculation mode .................. 191
Charcoal filter ............................... 193
Air conditioning............................. 194
Residual heat and ventilation ........ 195
Rear passenger compartment
adjustable air vents....................... 196Audio system...................................... 197
Audio and telephone, operation .... 197
Operating safety ........................... 197
Operating and display elements ... 198
Button and soft key operation ...... 200
Operation...................................... 200
Radio operation ............................ 205
Introduction to satellite radio*
(USA only) ..................................... 209
CD mode....................................... 214
GSM network phones ................... 223
TDMA or CDMA network phones .. 229
Emergency calls “911” ................. 235
Power windows .................................. 238
Opening and closing the windows 238
Synchronizing power windows ...... 240
Summer opening feature .............. 241
Convenience closing feature......... 241
Power tilt/sliding sunroof .................. 242
Opening and closing the power
tilt/sliding sunroof........................ 242
Synchronizing the power
tilt/sliding sunroof........................ 244
Driving systems .................................. 245
Cruise control ............................... 245

52 Getting started
Driving
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.

The engine electronics may not be op-
erating properly.

Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.The coolant temperature is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle in a safe location as
soon as possible and turn off the en-
gine. Allow engine and coolant to cool.
Check the coolant level and add
coolant if necessary (
page 301).
!
If anything blocks the windshield
wipers (leaves, snow, etc.), switch
them off immediately.

For safety reasons, stop the vehicle
in a safe location and remove
SmartKey from starter switch
before attempting to remove any
blockage.

Remove blockage.

Turn the windshield wipers on
again.
If the windshield wipers fail to function
at all with combination switch in
positionI,

set the combination switch to the
next higher wiper speed

have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center

175 Controls in detail
Climate control
Climate control panel (USA only)
Climate control panel (Canada only)
Item
1Left side defroster vent, fixed
2Left side air vent, adjustable
3Thumbwheel for air volume control
for left side air vent
4Thumbwheel for air volume control
for left center air vent
5Left center air vent, adjustable
6Right center air vent, adjustable
7Thumbwheel for air volume control
for right center air vent
8Thumbwheel for air volume control
for right side air vent
9Right side air vent, adjustable
aRight side defroster vent, fixed
bClimate control panel
i
For draft-free ventilation, move the
sliders for the air vents2,5,6
and9 to the middle position.
Item
1Air volume control
2Left side temperature control
3Right side temperature control
4Air distribution control
5Rear window defroster
6AC cooling on/off
7Air distribution and air volume
(automatic mode)
8Air recirculation
9Front defroster

176 Controls in detail
Climate control
The 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 mode A/C is deactivated
(
page 182).
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 178) 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.
i
Severe 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 241). 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.

177 Controls in detail
Climate control
Deactivating the climate control
system
Deactivating
Set air volume control1 (page 175)
to position0.
Reactivating
Set air volume control1 (page 175)
to any speed.Operating the climate control system
in automatic mode
Activating
Press buttonU (page 175) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.
Use temperature controls2 and3
(
page 175) to separately adjust the
air temperature on each side of the
passenger compartment.
The temperature of the vehicle interior
is adjusted automatically.
Deactivating
Press buttonU (page 175) again.
The indicator lamp on the button goes
out. The automatic operation of air vol-
ume and air distribution switches off.
Warning!G
When the climate control is switched off, the
outside air supply and circulation are also
switched off. Only choose this setting for a
short time. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
i
When operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.
In automatic mode, cooling with dehu-
midify is switched on. This function can
be switched off if necessary.

179 Controls in detail
Climate control
Turn air distribution control 4
(
page 175) to the desired symbol.
Opening center and side air vents
Turn thumbwheels 3, 4, 7 and 8
(
page 175) upward.
The center air vents 5 and 6 and side
air vents 2 and 9 are open.
Closing center and side air vents
Turn thumbwheels 3, 4, 7 and 8
(
page 175) downward.
The center air vents 5 and 6 and side
air vents 2 and 9 are closed.
Adjusting air volume
Six blower speeds are available.
Press buttonU (page 175).
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 175) 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 175).
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 175) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
i
Keep this setting selected only until the
windshield or the side windows are
clear again.
i
The cooling remains switched on.

182 Controls in detail
Climate control
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.Deactivating
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 175).
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 175).
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.
i
Condensation 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.
!
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.

185 Controls in detail
Automatic climate control* (Canada only)
Automatic climate control panel
Item
1Left side defroster vent, fixed
2Left side air vent, adjustable
3Thumbwheel for air volume control
for left side air vent
4Thumbwheel for air volume control
for left center air vent
5Left center air vent, adjustable
6Right center air vent, adjustable
7Thumbwheel for air volume control
for right center air vent
8Thumbwheel for air volume control
for right side air vent
9Right side air vent, adjustable
aRight side defroster vent, fixed
bAutomatic climate control panel
i
For draft-free ventilation, move the
sliders for the air vents2,5,6,
and9 to the middle position.
Item
1Left side air distribution control
2Front defroster
3Temperature control, left, raising
4Display
5Air volume control, raising
6Temperature control, right, raising
7Rear window defroster
8Right side air distribution control
9Charcoal filter
aAC cooling on/off
Residual heat/ventilation
bTemperature control, right, lowering
cAir volume control, lowering
dTemperature control, left, lowering
eAir recirculation
fAutomatic climate control on/off
(complete system)
gAir distribution and air volume
(automatic mode)