2004 MERCEDES-BENZ S55AMG warning

182 Controls in detailAutomatic climate controlAutomatic climate control panel
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.
Item
1
Windshield defroster
2
Rear window defroster
3
Display
4
Residual engine heat utilization
(REST)
5
Automatic climate control on/off
6
Air distribution, right
7
AC cooling on/off (±)
8
Right side temperature control
9
Air volume (automatic, manual)
a
Left side temperature control
b
Air recirculation
c
Air distribution, left
d
Activated charcoal filter
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 on 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 to direct
the air away from the footwell air vents
(page 184).

183 Controls in detail
Automatic climate control
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 ± mode is selected
(page 190).
Setting the temperature
Use temperature controls aand8
(page 182) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).
Increasing / decreasing

Press button a or 8 repeatedly until
the display shows the desired tempera-
ture.
The automatic climate control system
will correspondingly adjust the interior
air temperature.
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.
iThe current climate control settings
(ON/OFF, temperature, air volume, ac-
tivated charcoal filter, etc.) are stored
for each SmartKey before it is removed
from the starter switch or when the ve-
hicle is locked using the SmartKey with
KEYLESS-GO* (
page 102).
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, leaves, sticks,
and any other debris.
Do not obstruct air volume by placing
objects on the air volume-through ex-
haust slots below the rear window.
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.

187 Controls in detail
Automatic climate control
Defrosting
Activating
Press buttonP (
page 182).
The indicator lamp on the button
comes on.

Switch off air recirculation, if selected.

Press button, (
page 182).
The indicator lamp on the button goes
out.

Close center air vents.

Adjust side air vents upwards.
Deactivating

Press buttonP (
page 182).
The indicator lamp on the button goes
out. Defrosting is turned off.
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 182).
The indicator lamp on the button
comes on.
iThese settings should only be selected
for a short time.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.iIf you keep button, pressed, the
side windows and the sliding/pop-up
roof will close.
Warning!
G
Never operate the side windows and the
sliding pop/pop-up roof if there is the possi-
bility of anyone being harmed by the closing
procedure.
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by pressing
the respective window switch. The closing of
the sliding/pop-up roof can be immediately
halted by moving the sliding/pop-up roof
switch in the overhead control panel in any
direction.
The closing of the side windows and the slid-
ing/pop-up roof can be reversed by again
pressing and holding the, button.

189 Controls in detail
Automatic climate control
Deactivating
Press buttone (
page 182).
The indicator lamp on the button goes
out.The system automatically switches to the
air recirculation mode if the carbon
monoxide (CO) or nitrogen oxide (NO
X)
concentration of the outside air increases
beyond a predetermined level, for example
in a tunnel.
The automatic air recirculation mode does
not function if ± is selected or if the
outside temperature has fallen below
41°F (5°C).
The activated charcoal filter should be
switched off when windows fog up on the
inside, or if the passenger compartment
needs to be quickly heated or cooled
down.
Rear window defroster
The rear window defroster uses a large
amount of power. To keep battery drain to
a minimum, switch off the defroster as
soon as the rear window is clear. The de-
froster is automatically deactivated after
approximately 6 to 17 minutes of opera-
tion depending on the outside tempera-
ture.
Activating
Press buttonF (
page 182).
The indicator lamp on the button
comes on.
Deactivating

Press buttonF (
page 182) again.
The indicator lamp on the button goes
out.
Warning!
G
Never operate the side windows and the
sliding /pop-up roof if there is the possibility
of anyone being harmed by the closing pro-
cedure.
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows can be immediately halted by pressing
the respective window switch. The closing of
the sliding/pop-up roof can be immediately
halted by moving the sliding/pop-up roof
switch in the overhead control panel in any
direction.
The closing of the side windows and slid-
ing/pop-up roof can be reversed by again
pressing and holding thee button.
iIf you keep buttone pressed, the
side windows and the sliding/pop-up
roof will return to their previous posi-
tion.

190 Controls in detailAutomatic climate control
Deactivating the climate control sys-tem
Deactivating
It is possible to completely deactivate the
automatic climate control system. 
Press button M (
page 182).
The display shows “0”.
Reactivating
There are several ways to reactivate the
automatic climate control system:

Press one of the following buttons,
M, P, U, a temperature con-
trol switch (
page 182) or air volume
switch 9 on the automatic climate
control panel.
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press button± (
page 182).
The indicator lamp on the button±
comes on.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.

194 Controls in detailAutomatic climate controlRear automatic climate control panel
iWhen the rear seats are not occupied
(rear seat belts unbuckled) the rear cli-
mate control system adopts the set-
tings of the front climate control
system.
Item
1
Left center air vent, adjustable
2
Display
3
Right center air vent, adjustable
4
Thumbwheel for air distribution
5
Temperature control, right
6
Air volume (automatic, manual)
7
Temperature control, left
8
Rear climate control system
ON/OFF
Residual engine heat utilization
Warning!
G
Follow the recommended settings for heat-
ing and cooling as given in the instructions
for the front automatic climate control
(page 180). Otherwise the windows could
fog up, impairing visibility for the driver and
endangering you and others.

195 Controls in detail
Power windows
Power windows
Opening and closing the windows
The side windows can be opened and
closed electrically. The switches for all the
side windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
doors.
1Left front window
2Right front window
3Right rear window
4Left rear window
5Rear window override switch
(
page 74)
Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if the switch was pressed past the resis-
tance point and released, by pressing the re-
spective switch.
If the window encounters an obstruction
that blocks its path in a circumstance where
you pressed 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 pressing and
holding the switch, by pressing and holding
button ‹ on the SmartKey, or by press-
ing and holding the lock button (vehicles
with KEYLESS-GO*) on the door handle,
the automatic reversal function will not op-
erate.
When leaving the vehicle, always remove the
SmartKey from starter switch, take the
SmartKey with KEYLESS-GO* 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 may cause an accident
and/or serious personal injury.iYou can also open or close the win-
dows using the:

SmartKey (summer opening/con-
venience feature) (
page 197)


button, in the control panel of
the automatic climate control
(page 182)


buttone in the control panel of
the automatic climate control
(page 182)

196 Controls in detailPower windows
Switch on ignition.
Opening the windows

Press switch1 to 4 at the
symbolk to the resistance point.
The corresponding window will move
downwards until you release the
switch.Closing the windows

Press switch1 to 4 at the
symbolj to the resistance point.
The corresponding window will move
upwards until you release the switch.
Fully opening the windows
(Express-open)

Press switch1 to 4 at the
symbolk past the resistance point
and release.
The corresponding window opens com-
pletely.Fully closing the windows
(Express-close)

Press switch1 to 4 at the
symbolj past the resistance point
and release.
The corresponding window closes com-
pletely.
iYou can still operate the windows when
the SmartKey is in starter switch
position0 or has been removed:

until the driver’s or front passen-
ger’s door is opened


for no more than five minutes
Warning
G
If you press and hold the switch up when
closing the window, and upward movement
of the window is blocked by some obstruc-
tion including but not limited to arms, hands,
fingers, etc., the automatic reversal will not
operate.
!If the upward movement of the window
is blocked during the closing proce-
dure, the window will stop and open
slightly.
Remove the obstruction, press the
switchj again past the resistance
point and release.
If the window still does not close when
there is no obstruction, then hold the
switchj down. The side window
will then close without the obstruction
sensor function.