climate control MERCEDES-BENZ SLR CLASS 2007 User Guide

191 Controls in detail
Automatic climate control
Air distribution in automatic mode
You can separately adjust the air distribu-
tion for each side of the passenger
compartment.
Activating
Press control button1 or 5
(
page 188).
The control button is engaged.
TheU symbol on the control button
comes on. Air distribution for the re-
spective side of the passenger com-
partment is adjusted automatically.
Deactivating
Press control button 1 or 5
(
page 188) once more.
The control button sticks up slightly.
The U symbol on the control button
goes out. Automatic air distribution for
the respective side of the passenger
compartment is switched off. Adjust
the air distribution manually
(
page 192).Air volume in automatic mode
The air volume settings are the same for
the entire passenger compartment.
Activating
Press control button 9 (page 188).
The control button is engaged.
TheU symbol on the control button
comes on.
Deactivating
Press control button 9 (page 188)
once more.
The control button sticks up slightly.
The U symbol on the control button
goes out. Adjust the air volume
manually (
page 193).
Setting the temperature
Use temperature controls6 andb to
separately adjust the air temperature on
each side of the passenger compartment.
You should raise or lower the temperature
setting in small increments, preferably
starting at 72°F (22°C). The automatic
climate control will adjust to the set
temperature as fast as possible.
Increasing
Turn temperature control6
and/orb (
page 188) slightly
clockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.

192 Controls in detail
Automatic climate control
Decreasing
Turn temperature control6
and/orb (
page 188) slightly
counterclockwise.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
Adjusting the temperature for the
center and side air vents
When outside temperatures are low, you
can manually raise the air temperature for
the center and side air vents. The
controls3 are located between the
center air vents (
page 187).
Turning on warm air
Press the left button (red).
The indicator lamp on the button
comes on. Warm air will enter from the
center and side air vents.Turning off warm air
Press the left button (red).
The indicator lamp on the button goes
out. The air from the outlets will return
to the temperature set in the system.
Turning on cooler air
Press the right button (blue).
The indicator lamp on the button
comes on. Cooler air will enter from the
center and side air vents.
Turning off cooler air
Press the right button (blue).
The indicator lamp on the button goes
out. The air from the outlets will return
to the temperature set in the system.
Adjusting air distribution
Use air distribution controls1 and5
(
page 188) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:
Press control button 1 or 5
(
page 188) until the control button
sticks up slightly and the U symbol
on the control button is out.
Automatic air distribution for the re-
spective side of the passenger
compartment is switched off.
SymbolFunction
hDirects air through the cen-
ter and side air vents
jDirects air to the windows
VDirects air into the entire
vehicle interior
kDirects air to the footwells

193 Controls in detail
Automatic climate control
Turn control button to the desired
symbol.
The air distribution is adjusted accord-
ing to the chosen setting.
Opening the center air vents
Turn thumbwheel 7 (page 187)
upward.
Center air vents 2 and 4
(
page 187) are open.
Closing the center air vents
Turn thumbwheel 7 (page 187)
downward.
Center air vents 2 and 4
(
page 187) are closed.Opening the side air vents
Turn thumbwheel 6 and 8
(
page 187) upward.
The corresponding side air vent is
open.
Closing the side air vents
Turn thumbwheel 6 and 8
(
page 187) upward.
The corresponding side air vent is
closed.
Adjusting air volume
Use air volume control9 (
page 188) for
both automatic (
page 190) and manual
air volume adjustment. Nine blower
speeds are available.
Press control button9 (page 188).
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.
This provides the fastest possible cooling
of the vehicle interior.
iYou can also turn the air distribution control
to a position between two symbols.
iThe air vents are continuously variable.

194 Controls in detail
Automatic climate control
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 button P (page 188).
The indicator lamp on the button
comes on.
The air conditioning switches to the
following 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 offDeactivating
Press button P (page 188).
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 52).
If the automatic air distribution and air
volume are switched off:
Turn air distribution controls1 and 5
(
page 188) to position h ork.
or
Press control buttons 1, 5 and 9
(
page 188).
The control buttons are engaged.
TheU symbol on the control
buttons come on. Air distribution and
air volume are adjusted automatically.
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.

195 Controls in detail
Automatic climate control
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.Activating
Press button , (page 188).
The indicator lamp on the button
comes on.DeactivatingPress button , (page 188).
The indicator lamp on the button goes
out.
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air.
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 196) is activated, or
press buttonP.
iThe air recirculation mode is activated auto-
matically

at high outside temperatures

if the concentration of carbon monoxide
(CO) and nitrogen oxide (NO
X) in the outside
air increases, for example in a tunnel
A quantity of outside air is added after approxi-
mately 30 minutes.
If you have turned off the air conditioning
(
page 196) or the outside temperature is be-
low 41°F (5°C), the air recirculation mode will
not switch on automatically.
iThe manually selected air recirculation
mode is deactivated automatically

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)

196 Controls in detail
Automatic climate control
Air recirculation mode with conve-
nience closing or opening feature
Activating
Press and hold button,.
The indicator lamp on the button
comes on. The air recirculation mode is
activated. The windows will close.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
windows from fogging up.
Warning!G
Never operate the windows if there is the
possibility of anyone being harmed by the
closing procedure.
In the event that the procedure causes po-
tential danger, the closing of the windows
can be immediately halted by releasing
the, button or by pressing and pulling
the respective window switch.
iA 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,.
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/or
others.
iCondensation may drip out from underneath
the vehicle. This is normal and not an indication
of a malfunction.

197 Controls in detail
Automatic climate control
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 (page 188).
The indicator lamp on the ±
button comes on. 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
conditioning.
Press ± button again (page 188).
The indicator lamp on the ± button
goes out.
The air conditioning uses the refrigerant
R134A. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
iUnder certain circumstances, e.g. when the
fuel system is too hot and needs to be cooled,
the cooling switches on again automatically. The
red lamp on the ± button the automatic
climate control panel flashes.
After cooling the fuel system sufficiently, the air
conditioning switches off again and the red lamp
stops flashing.
!If you press the ± button on the auto-
matic climate control panel and it starts to flash,
this indicates that the air conditioning is losing
refrigerant. The compressor has turned off. The
air conditioning cannot be turned on again.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.
iHow long the system will provide heating
depends on the coolant temperature and the
selected temperature. The blower will run at low
speed regardless of the air distribution control
setting.

198 Controls in detail
Automatic climate control
Activating
Turn the SmartKey in the starter switch
to position1 or0 o r r e m o v e i t f r o m t h e
starter switch.
Press button T (page 188).
The indicator lamp on button comes
on.Deactivating
Press button T (page 188).
The indicator lamp on 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

if the coolant temperature is too low

199 Controls in detail
Power windows
Power windows
Opening and closing the windows
The door windows are opened and closed
electrically. The switches for the windows
are located on the door sill on the driver’s
side (
page 34). The switch for the pas-
senger side is located on the door sill on
the passenger side.
1Left window
2Right window
Switch on the ignition (page 40).
Warning!G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
The closing of the windows can be immedi-
ately halted by releasing the switch or, if
switch was pulled past the resistance point
and released, by either pressing or pulling
the respective switch.
If the window encounters an obstruction
that blocks its path in a circumstance where
you pulled the switch past the resistance
point and released it to close the window,
the automatic reversal function will stop the
window and open it slightly.
If the window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, or by pressing and hold-
ing button‹ on the SmartKey, or by
pressing and holding the ,button on the
climate control panel, the automatic
reversal function will not operate.
When leaving the vehicle, always remove the
SmartKey from starter switch, take it with
you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
iDepending on the current position, the win-
dows may also open or close when the air recir-
culation button, on the control panel of the
automatic climate control (
page 188) is
pressed and held.
iAfter switching off the ignition (page 40)
or removing the SmartKey from the starter
switch, the windows can be operated

until you open a door

for at least 5 minutes if no door was opened

282 Operation
Tires and wheels
Quality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades.Treadwear
The treadwear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-half (1
1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.Traction
The traction grades, from highest to low-
est, are AA, A, B, and C. Those grades rep-
resent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction
performance.
TreadwearTractionTemperature
200AAA
Warning!G
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.