2008 MERCEDES-BENZ CLK550 climate settings

Contents
Standard display menu ................ 147
AMG menu ................................... 148
AUDIO menu ................................ 151
Navi* menu .................................. 153
Vehicle status
message memory menu ............... 154
Settings menu .............................. 155
Trip computer menu..................... 167
TEL* menu ................................... 169
Automatic transmission ..................... 172
Gear selector lever ....................... 172
Shifting procedure ....................... 173
Gear selector lever positions ....... 174
Driving tips ................................... 176
Gear ranges ................................. 177
Automatic shift program .............. 178
Gear selector lever
one-touch gearshifting ................. 179
Steering wheel gearshift
control one-touch gearshifting* ... 180
Manual shift program
CLK 63 AMG ................................ 182
Emergency operation
(Limp-Home Mode) ...................... 184Good visibility ..................................... 185
Headlamp cleaning system* ......... 185
Rear view mirrors.......................... 185
Sun visors ..................................... 187
Rear window sunshade*
(CLK coupe: Canada only) ............. 188
Rear window defroster .................. 189
Climate control ................................... 190
Deactivating the climate control
system .......................................... 193
Operating the climate control
system in automatic mode............ 193
Setting the temperature................ 194
Adjusting air distribution............... 194
Adjusting air volume ..................... 195
Front defroster.............................. 195
Air recirculation mode .................. 196
Air conditioning............................. 198
Rear passenger compartment
adjustable air vents....................... 199
Automatic climate control .................. 200
Deactivating the automatic
climate control system ................. 203
Operating the automatic climate
control system
in automatic mode ........................ 203Setting the temperature ............... 204
Adjusting air distribution .............. 205
Adjusting air volume ..................... 206
Front defroster ............................. 206
Maximum cooling MAXCOOL ........ 207
Air recirculation mode .................. 207
Charcoal filter ............................... 209
Air conditioning ............................ 210
Residual heat and ventilation*
(Canada only)................................ 211
Rear passenger compartment
adjustable air vents ...................... 212
Audio system...................................... 213
Audio and telephone*, operation .. 213
Operating safety ........................... 213
Sound system* ............................. 213
Operating and display elements ... 214
Button and soft key operation ...... 216
Operation...................................... 216
Radio operation ............................ 221
Satellite radio* ............................. 225
CD mode....................................... 229
GSM network phones ................... 236
TDMA or CDMA network phones .. 242
Emergency calls “911” ................. 248

192 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 A/C mode is deactivated
(
page 198).
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 191) to direct the air to
air vents in the vehicle interior that are not
in the immediate area of unprotected skin.
Warning!G
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A
clogged filter will reduce the air volume to
the interior and the windows could fog up,
impairing visibility and endangering you and
others. Have a clogged filter replaced as
soon as possible at an authorized
Mercedes-Benz Center.
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.
iKeep the air intake grille in front of the wind-
shield free of snow and debris.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.
iIf the vehicle interior is hot, ventilate the in-
terior before driving off, see “Summer opening
feature” (
page 253). The climate control will
then adjust the interior temperature to the set
value much faster.

193 Controls in detail
Climate control
Deactivating the climate control
system
Deactivating
Set air volume control1 (page 191)
to position0.
Reactivating
Make sure the ignition is switched on.
Set air volume control1 (page 191)
to any speed.
The previous settings are once again in
effect.Operating the climate control system
in automatic mode
Activating
Press buttonU (page 191) 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 191) 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 191) 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.
iWhen operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air
distribution.
In automatic mode, the dehumidify function is
switched on when the system is cooling. If nec-
essary, this function can be switched off by
pushing the2 button.

196 Controls in detail
Climate control
Deactivating
Press buttonP or0
(
page 191) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.
Windshield fogged on the outside
Switch the windshield wipers on
(
page 56).
If the automatic mode of the climate con-
trol is switched off:
Turn air distribution control4
toaorY(
page 191).
Air 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 191).
The indicator lamp on the button
comes on.Deactivating
Press button, (page 191).
The indicator lamp on the button goes
out.
iIf you have switched on the defrost function
using thePor0 button, you cannot
make any other settings.
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.
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 198) is activated, or
press buttonP or0.
iThe air recirculation mode is activated auto-
matically at high outside temperatures.
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 approxi-
mately 30 minutes.
iThe air recirculation mode is deactivated au-
tomatically:

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

after 5 minutes if the air conditioning is
turned off

after 30 minutes if the outside temperature
is above approximately 41°F (5°C)

202 Controls in detail
Automatic climate control
The automatic climate control is operation-
al whenever the engine is running. You can
operate the automatic climate control sys-
tem in either the automatic or manual
mode. The system cools or heats the inte-
rior depending on the selected interior
temperature and the current outside
temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the passenger compartment
through the air distribution system.
The air conditioning will not engage (no
cooling) if theA/C mode is deactivated
(
page 210).
Warning!G
When operating the automatic 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 frost-
bite on unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution controls (
page 201) to
direct the air to air vents in the vehicle inte-
rior that are not in the immediate area of un-
protected skin.
Warning!G
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 and the
windows could fog up, impairing visibility
and endangering you and others. Have a
clogged filter replaced as soon as possible
at an authorized Mercedes-Benz Center.
Warning!G
Follow the recommended settings for
heating and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iKeep the air intake grille in front of the wind-
shield free of snow and debris.
Do not obstruct air flow by placing objects on the
air flow-through exhaust slots below the rear
window.
iIf the vehicle interior is hot, ventilate the in-
terior before driving off, see “Summer opening
feature” (
page 253). The automatic climate
control will then adjust the interior temperature
to the set value much faster.

203 Controls in detail
Automatic climate control
Deactivating the automatic climate
control system
Deactivating
Press button´ (page 201).
The indicator lamp on the button
comes on.
Reactivating
Make sure the ignition is switched on.
Press button´ (page 201).
The indicator lamp on the button goes
out. The previous settings are once
again in effect.Operating the automatic climate con-
trol system in automatic mode
Activating
Press buttonU (page 201) while
the engine is running.
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.1Temperature, left
2Blower speed
3Temperature, right
Use temperature controls3
anddor6 and b (
page 201) to
separately adjust the air temperature
on each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Deactivating
Press buttonU (page 201) 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 automatic climate control is
switched off, the outside air supply and cir-
culation 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.
iWhen operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air
distribution.
In automatic mode, the dehumidify function is
switched on when the system is cooling. If nec-
essary, this function can be switched off by
pushing the button2or9 (
page 201).
iYou can switch the automatic climate con-
trol system on and off for each side of the
passenger compartment as desired.

206 Controls in detail
Automatic climate control
Adjusting air volume
Use buttonU (
page 201) for auto-
matic mode or air volume controls

orQ (
page 201) to adjust air volume
manually.
Seven blower speeds are available.
Press button
to decrease
orQ (
page 201) to increase air
volume to the desired level.
The indicator lamp on the buttonU
goes out.
The automatic air distribution remains
switched on.
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 201).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following functions:

cooling on to dehumidify

maximum blowing and heating
power

air flows onto the windshield and
the front side windows

the air recirculation mode is
switched offDeactivating
Press buttonP or0
(
page 201) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.
Windshield fogged on the outside
Switch the windshield wipers on
(
page 56).
If the automatic mode of the automatic cli-
mate control is switched off:
Turn air distribution control1 or8
toa orY (
page 201).
iKeep this setting selected only until the
windshield or the side windows are clear again.
iIf you have switched on the defrost function
using thePor0 button, you cannot
make any other settings.
iThe cooling remains switched on.
iKeep this setting selected only until the
windshield is clear again.