warning MERCEDES-BENZ M-CLASS 2007 Owners Manual

223 Controls in detail
3-zone automatic climate control*
The automatic climate control is a 3-zone
intelligent automatic climate control sys-
tem. Your vehicle interior is divided into
3 zones.With the help of a sun sensor, the automat-
ic climate control determines the relation
of the sun to the vehicle and automatically
adjusts the inside temperature for every
individual zone.
The automatic climate control is operation-
al whenever the engine is running. It cools
the vehicle’s interior according to the an-
gle and intensity of the sun’s rays, the out-
side temperature and the selected
temperature. You can operate the auto-
matic climate control in either the auto-
matic or manual mode.
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 222).
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
controls (
page 222) to direct the air to air
vents in the vehicle interior that are not in
the immediate area of unprotected skin.
ProCarManuals.com

224 Controls in detail3-zone automatic climate control*
Deactivating the automatic climate control system
Deactivating
Press button´ (
page 222) until
the displaye (
page 222) is cleared.
The indicator lamp on the button
comes on.Reactivating

Press buttonU(
page 222).
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, see “Summer opening fea-
ture” (page 239). 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 and debris.
Warning!
G
When the automatic climate control system
is switched off, the outside air supply and
circulation are also switched off. Only
choose this settings for a short time. Other-
wise the windows could fog up, impairing
visibility and endangering you and others.
i
You can also press button´
(
page 222) on the automatic climate control
panel.
If you press button0 (
page 222) to reacti-
vate the automatic climate control system, the
defrosting mode is activated.
ProCarManuals.com

228 Controls in detail3-zone automatic climate control*Windshield fogged on the outside
Switch the windshield wipers on
(page 61).

Press buttonU (
page 222).
AUTO
appears in the displaye
(
page 222). Air volume and air distri-
bution are controlled separately for
each zone.
If the automatic air distribution and air vol-
ume are switched off:

Press buttons8 andY
(page 222).
Maximum cooling MAX COOL
If the air distribution control as well as the
airflow volume control are set toU and
there is a high need for cooling, the
MAX COOL function is activated.
“MAX COOL” appears in the front and rear
display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof* are closed).
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.
i
Keep this setting selected only until the
windshield is clear again.
Warning!
G
Fogged windows impair visibility,
endangering 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 win-
dow fogging persists, make sure the air
conditioning (
page 230) is activated, or
press button0.
ProCarManuals.com

229 Controls in detail
3-zone automatic climate control*
Activating
Press button: (
page 222).
The indicator lamp on the button
comes on.Deactivating

Press button: (
page 222).
The indicator lamp on the button
comes on.
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.Air recirculation mode with conve-
nience closing and opening feature
i
The 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.
If you have turned off the air conditioning
(
page 230) or the outside temperature is
below 41°F (5°C), the air recirculation mode will
not switch on automatically.
i
To cool the interior as fast as possible, the
automatic climate control automatically switch-
es to air recirculation. The indicator lamp on
button: is not lit when the system switches
to air recirculation automatically.
i
The 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 and
air-drying is turned off


after 30 minutes if the outside temperature
is above approximately 41°F (5°C)
Warning!
G
Never operate the side windows and
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential
danger:
Vehicles with or without tilt/sliding sun-
roof*: The closing of the windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof* can be immediately
halted by moving the switch for the tilt/slid-
ing sunroof* in any direction.
The closing of the side windows and the
tilt/sliding sunroof* can be reversed by
again pressing and holding the :button.
ProCarManuals.com

230 Controls in detail3-zone automatic climate control*Convenience closing
Press button: for approximately
2 seconds.
The windows and/or tilt/sliding sun-
roof* will close. You can release
button: once the closing proce-
dure has begun. The windows and
tilt/sliding sunroof* continue closing
until they are fully closed. The indicator
lamp on the button comes on. The air
recirculation mode is activated.Convenience opening

Press button: for approximately
2 seconds.
The windows and/or tilt/sliding sun-
roof* will return to their previous posi-
tions. You can release button:
once the opening procedure has be-
gun. The windows and tilt/sliding sun-
roof* continue opening until they have
reached their previous positions. The
indicator lamp on the button goes out.
The air recirculation mode is deactivat-
ed.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle down to the selected interior tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thereby preventing the windows from fog-
ging up.
i
A window or the tilt/sliding sunroof* will
only return to its previous position if it has not
been moved to another position using the re-
spective window switch or tilt/sliding sunroof*
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
interior air is not dried. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.
ProCarManuals.com

236 Controls in detailPower windowsOpening and closing
The door windows are opened and closed
electrically. The switches for all door win-
dows are located on the driver’s door con-
trol panel (
page 36). The switches for
the respective door windows are located
on the control panels of the front passen-
ger door and the rear doors.
1Left rear door window
2Left front door window
3Right front door window
4Right rear door window
5Override switch (
page 93)

Switch on the ignition (
page 40).
Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
Activate the override switch (
page 94)
when children are riding in the back seats of
the vehicle. The children could otherwise in-
jure themselves, e.g. by becoming trapped
in the window opening.
The closing of a door window can be imme-
diately 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 a door 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 door win-
dow, the automatic reversal function will
stop the window and open it slightly.
ProCarManuals.com

237 Controls in detail
Power windows
Opening the door windows
Press switch1, 2, 3, or4
(page 236) to the resistance point.
The corresponding door window moves
downwards until you release the
switch.
Closing the door windows

Pull switch1, 2, 3, or4
(page 236) to the resistance point.
The corresponding door window moves
upwards until you release the switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing a door window by pulling and
holding the switch, or by pressing and hold-
ing button‹on the SmartKey, by press-
ing and holding the lock button (vehicles
with KEYLESS-GO*) on a door handle, the
automatic reversal function will not operate.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.
i
You can also open or close the windows
using the SmartKey, see “Summer opening fea-
ture” (page 239) and see “Convenience clos-
ing feature” (
page 239).
Depending on the current position, the power
windows may also open or close when the air
recirculation button: on the control panel of
the climate control (
page 208) or automatic
climate control* (
page 222) is pressed and
held.
i
With the SmartKey in starter switch
position0 or removed from the starter switch,
the windows can be operated


until you open the driver’s or front passenger
door


for at least 5 minutes
Warning!
G
If you pull and hold the switch up when clos-
ing the door window, and upward movement
of the door window is blocked by some ob-
struction including but not limited to arms,
hands, fingers, etc., the automatic reversal
will not operate.
ProCarManuals.com

238 Controls in detailPower windowsFully opening the door windows
(Express-open)
Press switch1, 2, 3, or4
(page 236) past the resistance point
and release.
The corresponding door window opens
completely.
Fully closing the door windows
(Express-close)

Pull switch1, 2, 3, or4
(page 236) past the resistance point
and release.
The corresponding door window closes
completely.If the upward movement of a door window
is blocked during the closing procedure,
the door window will stop and open slight-
ly.

Remove the obstruction.

Pull the respective power window
switch past the resistance point again
and release.
Stopping door windows during
Express-operation

Press or pull respective power window
switch again.
Synchronizing the door windows
The door windows must be resynchronized

after the battery was disconnected


if the door windows cannot be fully
opened (Express-open) or closed
(Express-close)

Close all doors.

Switch on the ignition (
page 40).

Pull and hold power window switch1,
2,3, or4 (
page 236).
Once a door window is closed com-
pletely, hold the respective switch for
approximately 3 seconds.
The door window is synchronized.
Warning!
G
Driver’s door only:
If within 5 seconds switch is again pulled
past the resistance point and released, the
automatic reversal will not function.
i
If the door window still does not close when
there is no obstruction, pull and hold the respec-
tive power window switch. The door window will
then close without the obstruction sensor
function.
i
Each door window must be resynchronized
separately.
ProCarManuals.com

239 Controls in detail
Power windows
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:

opening the door windows


opening the tilt/sliding sunroof*


switching on the seat ventilation* for
the driver’s seat

Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle.
The SmartKey or SmartKey with
KEYLESS-GO* must be in close proxim-
ity to the driver’s outside door handle.

Press and hold buttonΠon the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding sunroof* have reached
the desired position.

Release buttonΠon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
Convenience closing feature
When locking the vehicle, you can close
the windows and the tilt/sliding sunroof*
simultaneously.Warning!
G
When closing the windows and the
tilt/sliding sunroof*, make sure that there is
no danger of anyone being harmed by the
closing procedure.
If potential danger exists, proceed as fol-
lows:

Release button‹ to stop the closing
procedure. To open, press and hold
buttonŒ. To continue the closing
procedure after making sure that there
is no danger of anyone being harmed by
the closing procedure, press and hold
button‹.

ProCarManuals.com

242 Controls in detailPower tilt/sliding sunroof*Warning!
G
When closing the tilt/sliding sunroof, make
sure that there is no danger of anyone being
harmed by the closing procedure.
If the tilt/sliding sunroof encounters an ob-
struction that blocks its path in a circum-
stance where you are closing the tilt/sliding
sunroof by moving the tilt/sliding sunroof
switch past the resistance point, or by
pressing and holding button‹ on the
SmartKey, by pressing and holding the lock
button (vehicles with KEYLESS-GO*) on the
door handle, the automatic reversal function
will not operate.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.!
To avoid damaging the seals, do not trans-
port any objects with sharp edges which can
stick out of the tilt/sliding sunroof.Do not open the tilt/sliding sunroof if there is
snow or ice on the roof, as this could result in
malfunctions.
The tilt/sliding sunroof can be opened or closed
manually should an electrical malfunction occur
(
page 478).
i
When the tilt/sliding sunroof is open, reso-
nance noises may result in addition to the usual
wind noises. They are caused by minimal pres-
sure changes in the passenger compartment. To
reduce or eliminate these noises, change the po-
sition of the tilt/sliding sunroof or open a side
window slightly.
i
You can also open or close the tilt/sliding
sunroof using the SmartKey or the
KEYLESS-GO* function, see “Summer opening
feature” (
page 239) and see “Convenience
closing feature” (
page 239).
i
Depending on the current position, the
tilt/sliding sunroof may also open or close when
the air recirculation button: on the control
panel of the climate control (
page 208) or
automatic climate control* (
page 222) is
pressed and held.
ProCarManuals.com