air vents flow MERCEDES-BENZ E500 2004 W211 Owner's Manual

177 Controls in detail
Climate control
The climate control is operational whenev-
er the engine is running. You can operate
the climate control system in either the au-
tomatic or manual mode. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent 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 AC
OFF
mode is selected
(
page 182).
Warning!
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents in the
footwell can be very hot or very cold (de-
pending on the set temperature). This may
cause burns or frostbite to unprotected skin
in the immediate area of the air vents. Al-
ways keep sufficient distance between un-
protected parts of the body and the footwell
air vents. If necessary change the air flow
using the air distribution controls
(page 176) to direct the air away from the
footwell air vents.
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 fil-
ter 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.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.

179 Controls in detail
Climate control
Adjusting center air vents:
The thumbwheels for left2 and right6
center air vents are automatically posi-
tioned for optimum interior airflow. In this
position, center air vent4 and adjustable
left and right center vents3 and5 are
fully opened.
Heating:
Only in manual mode is it possible to lower
the temperature in the headroom by regu-
lating the cold-airflow using
thumbwheel7 (
page 174).Windshield fogged on the outside

Switch the windshield wipers on
(page 48).

Press the Ubutton.
The indicator lamp on the button
comes on.
Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press
to decrease orQ to in-
crease air volume to the desired level.
The
Auto
display disappears and the
automatic mode is switched off. The
selected blower speed is shown in the
display.Adjusting automatically

Press the U button.
The air volume is adjusted automatical-
ly.
Defrosting
Activating
Press buttonP.
The indicator lamp on the button
comes on.
or

Switch off air recirculation, if selected.
Press buttonO.
The indicator lamp on the button goes
out.iThese settings should only be selected
for a short time.


187 Controls in detail
Automatic climate control*
The automatic climate control is a 4-zone
intelligent climate control system. Your ve-
hicle interior is divided into 4 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 in-
dividual zone.
You can set the temperature for each of
the 4 zones separately. These settings can
be assigned to a SmartKey and stored in
memory (
page 152).
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 climate
control system in either the automatic or
manual mode.
Warning!
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents in the
footwell can be very hot or very cold (de-
pending on the set temperature). This may
cause burn or frostbite to unprotected skin
in the immediate area of the air vents. Al-
ways keep sufficient distance between un-
protected parts of the body and the footwell
air vents. If necessary change the air flow
using the air distribution controls
(page 186) to direct the air away from the
footwell air vents.

190 Controls in detailAutomatic climate control*Adjusting air volume
Adjusting manually
Nine blower speeds are available.
Press
to decrease or Q to in-
crease air volume to the desired level.
The
Auto
display disappears and the
automatic mode is switched off. The
selected blower speed is shown in the
display.
Adjusting automatically

Press left or right U button.
The air volume is adjusted automatical-
ly.
Maximum cooling MAX COOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU and there is a high need for
cooling, the display “MAX COOL” appears
in the front and rear display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
sliding / pop-up roof* or panorama
sliding / pop-up roof* are closed).DefrostingActivating

Press buttonP.
The indicator lamp on the button
comes on.
or
Switch off air recirculation, if selected.

Press buttonO.
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press buttonP.
The indicator lamp on the button goes
out. Defrosting is turned off.
iThese settings should only be selected
for a short time.