2007 MERCEDES-BENZ CL-CLASS Owners Manual

448 Controls in detail
Driving systems
Adjusting instrument cluster illumina-
tion
1Knob
Make sure the Night View Assist is
switched on.
Brightening illumination: Turn
knob1 clockwise.
Dimming illumination: Turn knob1
counterclockwise.Dirty or fogged-up windshield
If the windshield in front of the camera is
fogged up on the inside or outside or if it is
dirty, the Night View Assist image is
diminished.Removing condensation
Check settings of automatic climate
control and change them, if necessary
(
page 453).
Swing the camera cover downward
(
page 561).
Cleaning inside of windshield
Clean inside of windshield in front of
camera with a soft, non-scratching
cloth (
page 561).
Warning!G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, stop be-
fore trying to remove window fogging or
cleaning the window in front of the
Night View Assist camera.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
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449 Controls in detail
Driving systems
Night View Assist* malfunction
ProblemPossible causeSuggested solution
The quality of the Night View Assist image
has diminished.The windshield wipers are leaving streaks
on the windshield.Replace windshield wiper blades
(
page 647).
The area of the windshield within the cam-
era’s field of view is dirty.Clean windshield (page 561).
The area of the windshield within the cam-
era’s field of view has been damaged.Replace windshield.
The area of the windshield within the cam-
era’s field of view is fogged over.Remove condensation (page 448).
The area of the windshield within the cam-
era’s field of view is iced over.Defrost windshield (page 456).
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450 Controls in detail
Air vents
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451 Controls in detail
Air vents
Please comply with the following instruc-
tions in order for the automatic climate
control to function optimally:

Keep the air intake grille in front of the
windshield free of snow, leaves, sticks,
and any other debris.

Always keep all air vents and grilles in
the passenger compartment free from
obstruction.
Item
1Left side defroster vent, fixed
2Left side air vent, adjustable
3Left center air vent, adjustable
4Thumbwheel for air volume control
for left center air vent
5Thumbwheel for air volume control
for right center air vent
6Right center air vent, adjustable
7Right side air vent, adjustable
8Right side defroster vent, fixed
9Automatic climate control panel
aLeft rear center air vent, adjustable
bRight rear center air vent, adjustable
cThumbwheel for right rear center air
vents
dThumbwheel for left rear center air
vents
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
to unprotected skin in the immediate area of
the air vents.
Always keep sufficient distance between un-
protected parts of the body and the air
vents. If necessary, use the air distribution
adjustment (
page 246) to direct the air to
air vents in the vehicle interior that are not
in the immediate area of unprotected skin.
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452 Controls in detail
Air vents
Opening and closing air vents
Center air vents
Opening: Turn thumbwheels 4
and5 upward (
page 450).
Closing: Turn thumbwheels 4 and 5
downward.
Side air vents
Opening: Turn thumbwheels next to
side air vents2 and7 upward
(
page 450).
Closing: Turn thumbwheels down-
ward.
Rear center console air vents
Increasing/decreasing air volume:
Turn thumbwheelc or d to the left
or right (
page 450).
Ventilated storage compartment
The storage compartment under the front
armrest can be ventilated when the auto-
matic climate control is switched on.
1Switching ventilation off
2Switching ventilation on
The air volume is dependent on the setting
of:

air distribution control

air volume control

air vents in the dashboard
The air temperature is about the same as
that of the dashboard air vents. It cannot
be regulated separately.
iFor draft-free ventilation, move the sliders
for the center air vents 3 and 6 (
page 450)
to the middle position.
iThe temperature at the air ventsa andb
(
page 450) for rear passenger compartment
will be approximately the same as at the dash-
board center air vents.
!Extreme temperatures can occur in the stor-
age compartment. Switch off the air vents in the
storage compartment while the heating is
switched on if you are transporting heat-sensi-
tive items in the compartment.
Keep the air vents free of obstruction.
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453 Controls in detail
Automatic climate control
Automatic climate control
Automatic climate control panel
Item
1AUTO mode for air distribution and
volume, left
2Temperature control, left
3Manual fan speed adjustment, left
4Front defroster
Item
5Air recirculation
6Automatic climate control on/off
7Residual engine heat and ventilation
(REST)
8Rear window defroster
Item
9Manual fan speed adjustment, right
aTemperature control, right
bAUTO mode for air distribution and
volume, right
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454 Controls in detail
Automatic climate control
The 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.
It can only function optimally when you are
driving with the windows and the tilt/slid-
ing sunroof closed.
It is possible to completely deactivate the
climate control system (
page 455). Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.The following automatic climate control
functions can be operated via COMAND:
iIf you have the air distribution and air vol-
ume automatically controlled, you can adjust the
temperature, footwell temperature and air flow.
The following basic settings are recommended:

Automatic air distribution control
(
page 453)

Temperature: 72°F (22°C) (page 456)

Footwell temperature: 0 (page 249)

Air flow: focused (page 249)
Warning!G
Follow the recommended settings for heat-
ing and cooling given on the following pages
and in the “COMAND automatic climate
control” section (
page 244). Otherwise
the windows could fog up, impairing visibili-
ty and endangering you and others.
iSevere 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 fea-
ture” (
page 376). The automatic climate con-
trol 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, leaves, sticks, and any other
debris.
Do not obstruct air volume by placing objects on
the air volume-through exhaust slots below the
rear window.
FunctionPage
Temperature245
Air distribution246
Air volume246
Switching off cooling (“ACOFF”)247
Central climate control (“Mono”)248
Footwell temperature249
Air flow from air vents249
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455 Controls in detail
Automatic climate control
Deactivating climate control system
Deactivating: Press button´
(
page 453) up or down.
The indicator lamp on the button
comes on. You will see “Climate Con-
trol OFF” in the COMAND display.
Reactivating: Press button´
(
page 453) up or down.
The indicator lamp on the button goes
out. You will see the previous settings
in the COMAND display.Operating climate control system in
automatic mode
Air distribution and air volume is adjusted
automatically by the automatic climate
control system. You can also adjust the
settings for air distribution and air volume
manually.
Activating
Press buttonU (page 453) up or
down.
The indicator lamp on the button
comes on.Deactivating
Press buttonU (page 453) up or
down.
or
Adjust air distribution (page 246).
or
Adjust air volume (page 456).
The indicator lamp on buttonU
goes out. The automatic function is
switched off.
You can adjust the air distribution
(
page 246) or air volume
(
page 456) manually.
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.
iIn automatic mode, cooling with dehumidify
is switched on. This function can be switched off
if necessary (
page 247).
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