2007 MERCEDES-BENZ SL550 cooling

Contents
Vehicle status message memory
menu ............................................ 152
Settings menu .............................. 153
Trip computer menu..................... 163
TEL menu* ................................... 165
Automatic transmission ..................... 168
Gear selector lever position ......... 170
Driving tips ................................... 171
Gear ranges ................................. 172
Automatic shift program .............. 173
Gear selector lever one-touch
gearshifting .................................. 174
Steering wheel gearshift control
one-touch gearshifting* ............... 175
Manual shift program
(SL55AMGandSL65AMG only) 177
Emergency operation
(Limp-Home Mode) ...................... 179
Good visibility .................................... 180
Headlamp cleaning system .......... 180
Rear view mirrors ......................... 180
Sun visors .................................... 182
Rear window defroster ................. 183Automatic climate control .................. 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
Maximum cooling MAXCOOL ........ 190
Front defroster.............................. 190
Air recirculation mode .................. 191
Air conditioning............................. 193
Residual heat and ventilation ........ 194
Ventilated glove box ..................... 195
Power windows .................................. 196
Opening and closing the
windows ........................................ 196
Synchronizing power windows ...... 198
Retractable hardtop............................ 199
Opening and closing the
retractable hardtop ....................... 199Driving systems .................................. 209
Cruise control ............................... 209
Distronic* ..................................... 213
Distance warning function* .......... 224
Active Body Control (ABC) ............ 225
Parktronic system*
(Parking assist) ............................. 228
Useful features ................................... 233
Storage compartments ................. 233
Cup holders .................................. 238
Ashtray ......................................... 239
Cigarette lighter............................ 239
Heated steering wheel* ................ 240
Load assist in the trunk ................ 241
Power outlet ................................. 242
Telephone* ................................... 243
Tele Aid......................................... 244
Garage door opener ...................... 251

59 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 gauge is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible in
a safe location and turn off the engine.
Allow engine and coolant to cool.

Check the coolant level and add cool-
ant if necessary (
page 280).In case of accident
If the vehicle is leaking gasoline:

Do not start the engine under any cir-
cumstances.

Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:

Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the


major assemblies


fuel system


engine mount:

Start the engine in the usual manner.

185 Controls in detail
Automatic climate control
Automatic climate control panel
Item
1
Defroster air vents, fixed
2
Left center air vent, adjustable
3
Cockpit air vent, fixed
4
Right center air vent, adjustable
5
Right side air vent, adjustable
6
Air volume control for right side air
vent
7
Air volume control for center air
vents
8
Air volume control for left side air
vent
9
Automatic climate control panel
a
Left side air vent, adjustable
i
For draft-free ventilation, move the sliders
for center air vent and side air vents to the mid-
dle position.
Item
1
Air distribution, left
2
Front defroster
3
Air recirculation
4
Rear window defroster
5
Air distribution, right
6
Temperature control, right
7
Automatic climate control on/off
(entire system)
8
Residual heat/ventilation
9
Air volume control
a
AC cooling on/off
b
Temperature control, left

186 Controls in detailAutomatic climate controlThe 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 tem-
perature.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/Cmode is deactivated
(
page 193).
Warning!
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents can be very
hot or very cold (depending on the set tem-
perature). This may cause burns or frostbite
on unprotected skin in the immediate area
of the air vents. Always keep sufficient dis-
tance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution control (
page 185) to di-
rect the air to air vents in the vehicle interior
that are not in the immediate area of unpro-
tected 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. The automatic climate control
will then adjust the interior temperature to the
set value much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
When the retractable hardtop is closed, do not
obstruct air flow by placing objects on the air
flow-through exhaust slots below the rear win-
dow.

187 Controls in detail
Automatic climate control
Deactivating the automatic climate control system
Deactivating
Press button ´ (
page 185).
The indicator lamp on the button
comes on.Reactivating

Press button ´ (
page 185).
The indicator lamp on the button goes
out.
The previous settings are in effect
again.
or

Turn one of the temperature controls
on the automatic climate control panel
(page 185).
The indicator lamp on button ´
goes out.Operating the automatic climate
control system in automatic mode
Air distribution and air volume can be
adjusted automatically by the automatic
climate control system. You can also ad-
just the settings for air distribution and air
volume manually.
Warning!
G
When the automatic climate control system
is switched off, the outside air supply and
circulation are also switched off. Only
choose this setting for a short time when the
retractable hardtop is closed. Otherwise the
windows could fog up, impairing visibility
and endangering you and others.
i
When operating the automatic climate
control system in automatic mode, you will only
rarely need to adjust the temperature, air volume
and air distribution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off if
necessary (
page 185).

190 Controls in detailAutomatic climate controlAdjusting air volume
Use air volume control9 (
page 185) for
both automatic (
page 187) and manual
air volume adjustment. Nine blower
speeds are available.

Press control button9 (
page 185).
The control button sticks up slightly.
The U symbol on the control button
goes out. Automatic air volume control
is switched off. The air volume is ad-
justed corresponding to the set blower
speed.
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set to U and there is a high need for
cooling, MAXCOOL is activated.
“MAX COOL” appears on the temperature
controls 6 and b (
page 185).
This provides the fastest possible cooling
of the vehicle interior (when retractable
hardtop is closed).
Automatic climate control panel with
MAXCOOL activated
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.i
Keep this setting selected only until the
windshield or the side windows are clear again.

191 Controls in detail
Automatic climate control
Activating
Press button P (
page 185).
The indicator lamp on the button
comes on.
The air conditioning switches to the fol-
lowing functions automatically:


cooling on to dehumidify


maximum blower speed and
heating power


air flows onto the windshield
and the front side windows


the air recirculation mode is
switched off
Deactivating

Press button P (
page 185).
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are in effect
again.Windshield fogged on the outside

Switch the windshield wipers on
(page 57).
If the automatic air distribution and air vol-
ume are switched off:

Turn air distribution controls1 and 5
(page 185) to position h ork.
or

Press control buttons 1, 5 and 9
(page 185).
The control buttons are engaged. The
U symbol on the control buttons
come on. Air distribution and air vol-
ume are adjusted automatically.
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.
i
The cooling remains switched on.
i
Keep 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 193) is activated, or
press buttonP.

193 Controls in detail
Automatic climate control
Deactivating
Press and hold button,.
The indicator lamp on the button goes
out. The air recirculation mode is deac-
tivated. The windows will return to their
previous position.
Air conditioning
The air conditioning (cooling) function is
operational when the engine is running and
cools the vehicle interior down to the se-
lected temperature. In addition, the cool-
ing function dehumidifies the air in the
vehicle interior, thus preventing the win-
dows from fogging up.Deactivating
It is possible to deactivate the cooling
function of the automatic climate control
system. The air in the vehicle will then no
longer be cooled or dehumidified.

Press button 2 (
page 185).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
i
A window will only return to its previous po-
sition if it has not moved to another position us-
ing the respective window switch after it was
closed with button
,
.
i
Condensation may drip out from underneath
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.