cooling MERCEDES-BENZ SL55AMG 2006 R230 Owner's Manual

Contents
Settings menu .............................. 146
Trip computer menu..................... 157
TEL menu* ................................... 159
Automatic transmission ..................... 162
Gear selector lever position ......... 164
Driving tips ................................... 166
Gear ranges ................................. 167
Automatic shift program .............. 168
Gear selector lever one-touch
gearshifting .................................. 169
Steering wheel gearshift control
one-touch gearshifting................. 170
Manual shift program SL 55 AMG
and SL 65 AMG ............................ 173
Emergency operation
(Limp Home Mode) ...................... 176
Good visibility .................................... 177
Headlamp cleaning system .......... 177
Rear view mirrors ......................... 177
Sun visors .................................... 178
Rear window defroster ................. 179Automatic climate control .................. 180
Deactivating the automatic
climate control system ................. 183
Operating the climate control
system in automatic mode............ 183
Setting the temperature................ 184
Adjusting air distribution............... 185
Adjusting air volume ..................... 186
Maximum cooling MAXCOOL ........ 186
Front defroster.............................. 186
Air recirculation mode .................. 187
Air conditioning............................. 189
Residual heat and ventilation ........ 190
Ventilated storage compartments. 191
Power windows .................................. 192
Opening and closing the windows. 192
Synchronizing power windows ...... 194
Retractable hardtop............................ 195
Opening and closing the
retractable hardtop ....................... 195Driving systems .................................. 204
Cruise control ............................... 204
Distronic* ..................................... 207
Active Body Control (ABC) ............ 219
Parktronic* (Parking assist) .......... 223
Useful features ................................... 228
Storage compartments ................. 228
Cup holders .................................. 232
Ashtray ......................................... 233
Cigarette lighter............................ 234
Heated steering wheel* ................ 235
Load assist in the trunk ................ 236
Power outlet ................................. 237
Telephone* ................................... 237
Tele Aid......................................... 238
Garage door opener ...................... 247

57 Getting started
Driving
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 278).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.

181 Controls in detail
Automatic climate control
Automatic climate control panel
Item
1
Center air vent, adjustable
2
Cockpit air vent, fixed
3
Side defroster vent
4
Side air vent, adjustable
5
Center air vent, adjustable
6
Thumbwheel for air volume control
for right side air vents
7
Thumbwheel for air volume control
for center air vents
8
Thumbwheel for air volume control
for left side air vents
9
Automatic climate control paneliFor draft-free ventilation, move the slid-
ers for center air vents 1 and 5 to
the middle position.
Item
1
Temperature control, left
2
Air distribution, left (automatic or
manual operation)
3
Front defroster
4
Air recirculation
5
Rear window defroster
6
Air distribution, right (automatic or
manual operation)
7
Temperature control, right
8
Automatic climate control on/off
(entire system)
9
Residual heat/ventilation
a
Air volume control (automatic, man-
ual)
b
AC cooling on/off

182 Controls in detailAutomatic climate controlThe automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing 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/Cmode is deactivated
(
page 189).
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 181) 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.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the
filter before its scheduled interval.
A clogged filter will reduce the air vol-
ume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off. 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.
When the retractable hardtop is closed,
do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.

183 Controls in detail
Automatic climate control
Deactivating the automatic climate control system
Deactivating
Press button ´ (
page 181).
The indicator lamp on the button
comes on.Reactivating

Press button ´ (
page 181).
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 181).
The indicator lamp on button ´
goes out.Operating the climate control system
in automatic mode
Air distribution and air volume can be ad-
justed automatically by the automatic cli-
mate control system. You can also adjust
the settings for air distribution and air vol-
ume manually.
iWhen the automatic climate control
system is switched off, the outside air
supply and circulation are also
switched off. Only choose this setting
when the retractable hardtop is open.
Otherwise the windows could fog up.
iWhen 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
(page 181).

186 Controls in detailAutomatic climate controlAdjusting air volume
Use air volume controla (
page 181) for
both automatic (
page 183) and manual
air volume adjustment. Nine blower
speeds are available.

Press control buttona (
page 181).
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.
“MAXCOOL” appears on the temperature
controls 1 and 7 (
page 181).
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.
iKeep this setting selected only until the
windshield or the side windows are
clear again.

187 Controls in detail
Automatic climate control
Activating
Press button P (
page 181).
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 181).
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 54).
If the automatic air distribution and air vol-
ume are switched off:

Turn air distribution controls2 and 6
(page 181) to position h ork.
or

Press control buttons 2, 6 and a
(page 181).
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.
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 189) is activated, or
press buttonP.

189 Controls in detail
Automatic climate control
At outside temperatures above 79°F
(26 °C) the system will not automatically
switch back to outside air.
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 181).
The indicator lamp on the button goes
out. The cooling function switches off
after a short delay.
iPress and hold button,. The win-
dows will open.
The opening of the windows can be im-
mediately halted by releasing
button,.
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.

191 Controls in detail
Automatic climate control
Deactivating
Press button T (
page 181).
The indicator lamp on the button goes
out.
The residual heat is automatically turned
off:


when the ignition is switched on


after about 30 minutes


if the battery voltage drops


when the coolant temperature is too
low
Ventilated storage compartments
The glove box and the armrest storage
compartment have their own air vents that
allow for cooling ventilation when the auto-
matic climate control system is activated.Glove box1Thumbwheel
2Air ventOpening the air vent

Turn thumbwheel1 upwards.
Closing the air vent

Turn thumbwheel1 downwards.
Storage compartment under the armrest1Thumbwheel
2Air vent
Opening the air vent
Turn thumbwheel1 to the right.
Closing the air vent

Turn thumbwheel1 to the left.
iYou should keep these air vents closed
when outside temperatures are low.

278 OperationEngine compartmentCoolantThe engine coolant is a mixture of water
and anticorrosion/antifreeze. To check
the coolant level, the vehicle must be
parked on level ground and the engine
must be cool.
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
1Coolant expansion tank

Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.

Continue turning the cap to the left and
remove it.
The coolant level is correct if the level


for cold coolant: is up to the upper
mark on the bracing rib of the coolant
expansion tank (translucent)


for warm coolant: is approx. 0.6 in
(1.5 cm) higher

Add coolant as required.

Replace and tighten cap.
For more information, see “Coolants”
(
page 450).
Warning!
G
In order to avoid any possibly serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.


Using a rag, slowly open the cap approx-
imately
1/2 turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.
!SL 600 and SL 65 AMG: Only open the
cap on coolant expansion tank1.
Never open the cap between the two
charge-air coolers. Otherwise, the en-
gine could be damaged.