MERCEDES-BENZ S550 2007 W221 Owner's Manual

430 Controls in detailAutomatic climate controlDeactivating
Press button; (
page 426) up or
down.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect, except air recirculation mode
stays off.
Windshield fogged on the outside

Switch the windshield wipers on
(page 351).

Press buttonU (
page 426) up or
down.
The indicator lamp on the button
comes on.
Rear window defroster
Activating
Switch on the ignition (
page 315).

Press button< (
page 426) up or
down.
The indicator lamp on the button
comes on.
Deactivating

Press button< (
page 426) up or
down.
The indicator lamp on the button goes
out.
Maximum cooling MAXCOOL (USA only)
If U is selected on both the left and
right side and there is a high demand for
cooling, the display “MAXCOOL” appears
in the COMAND display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof or tilt/sliding panel*
are closed).
!
The rear window defroster uses a large
amount of power. To keep battery drain to a min-
imum, switch off the defroster as soon as the
rear window is clear.
i
The defroster is automatically deactivated
after some time of operation depending on the
outside temperature.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.
i
If the rear window defroster switches off too
soon and the indicator lamp goes out, this indi-
cates that too many electrical consumers are op-
erating simultaneously and the load on the
battery is reducing available voltage. The system
responds automatically by deactivating the rear
window defroster.
i
Maximum cooling MAXCOOL is only avail-
able when the engine is running.

431 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 (e.g. before driving in a
tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
Activating: Press button,
(page 426) up or down.
The indicator lamp on the button
comes on.

Deactivating: Press button,
(page 426) up or down.
The indicator lamp on the button goes
out.Air recirculation mode with conve-
nience closing or opening feature
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 231) is activated, or
press button;.
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 acti-
vated.
A quantity of outside air is added when the cool-
ing demand is not at maximum.
If the air conditioning has been turned off
(
page 231) or the outside temperature is be-
low 41°F (5°C), the air recirculation mode will
not switch on automatically.
i
The 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)
Warning!
G
Never operate the side windows and the
tilt/sliding sunroof or tilt/sliding panel* if
there is the possibility of anyone being
harmed by the closing procedure.
Vehicles with tilt/sliding sunroof:
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 tilt/sliding sunroof can be immediately
halted by moving the tilt/sliding sunroof
switch in the overhead control panel in any
direction.
Vehicles with panorama roof*:
In the event that the procedure causes po-
tential danger, the closing of the side win-
dows or the tilt/sliding panel can be
immediately halted by releasing
button,.


432 Controls in detailAutomatic climate controlVehicles with tilt/sliding sunroof
Convenience closing: Press
button
,
for approximately
2 seconds.
The side windows and/or tilt/sliding
sunroof 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 side windows and/or tilt/sliding
sunroof will return to their previous po-
sition. 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.Vehicles with panorama roof*

Convenience closing: Press and hold
button
,
until the side windows and
the tilt/sliding panel are closed or have
reached the desired position. The indi-
cator lamp on the button comes on.
The air recirculation mode is activated.

Convenience opening: Press and hold
button
,
until the side windows and
the tilt/sliding panel are opened or
have reached the desired position.
The indicator lamp on the button goes
out. The air recirculation mode is deac-
tivated.
The closing of the side windows and the
tilt/sliding sunroof or tilt/sliding panel* can
be reversed by again pressing and holding
button,.
i
A window or tilt/sliding sunroof (or tilt/slid-
ing panel*) will only return to its previous posi-
tion if it has not been moved to another position
using the respective window switch or tilt/slid-
ing sunroof (or tilt/sliding panel*) switch after it
was closed with button,.
A window or tilt/sliding sunroof (or tilt/sliding
panel*) that has been moved will remain in its
current position if button, i s u s e d t o r e o p e n
the remaining windows or tilt/sliding sunroof (or
tilt/sliding panel*).


433 Controls in detail
Automatic climate control
Residual engine heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior.
This feature makes use of the residual heat
produced by the engine.Activating

Switch off the ignition (
page 315).

Press buttonT (
page 426) up or
down.
The indicator lamp on the button
comes on.
Deactivating

Press buttonT (
page 426) up or
down.
The indicator lamp on the button goes
out.Front passenger compartment adjust-
able air vents
Opening/closing the air vents:
Turn thumbwheels 3, 5, 6 and 8
(page 425).
i
If you switch on the residual heat function
when outside temperatures are high, only the
ventilation will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed when heating. In
case of ventilation the blower operates at higher
speed.
i
How long the system will provide heating de-
pends on


the coolant temperature


the temperature set by the operator
i
The residual heat is automatically turned off:


when the ignition is switched on


after approximately 30 minutes


if the battery voltage drops


if the coolant temperature is too low

434 Controls in detailAutomatic climate controlRear passenger compartment adjust-able air vents
Rear center console air vents
1Left center air vent, adjustable
2Right center air vent, adjustable
3Thumbwheel for right center air vents
4Thumbwheel for left center air vents
Opening/closing air vents:
Turn thumbwheel3 or 4.Rear passenger compartment climate
control*
Automatic climate control panel, rear
i
Vehicles without rear passenger compart-
ment climate control*:
The temperature at the air vents for rear passen-
ger compartment1 and2 will be approxi-
mately the same as at the dashboard center air
vents.
Warning!
G
Follow the recommended settings for heat-
ing and cooling as given in the instructions
for the front climate control (
page 424).
Otherwise the windows could fog up, impair-
ing visibility for the driver and endangering
you and others.
i
At low outside temperatures or if you have
switched off the cooling function, you cannot
cool the rear passenger compartment.
Item
1
Temperature control, left
2
Air distribution, left
(automatic, manual)
3
Air volume (automatic, manual)
4
Mode selector
5
Air distribution, right
(automatic, manual)
6
Temperature control, right

435 Controls in detail
Automatic climate control

Switching on automatic mode: Press
button 4 (
page 434) up or down re-
peatedly until “AUTO” mode is selected
in display.

Switching off rear climate control:
Press button 4 (
page 434) up or
down repeatedly until “OFF” mode is
selected in display.

Switching off automatic mode: Press
button 4 (
page 434) up or down re-
peatedly until “MAN” mode is selected
in display.

Setting temperature: Use tempera-
ture controls 1and6 (
page 434)
to separately adjust the air tempera-
ture on each side of the rear passenger
compartment.

Increasing/decreasing: Press
temperature control 1 or 6 up or
down.
The climate control system will cor-
respondingly adjust the interior air
temperature.

Adjusting air distribution: Press but-
ton 2 or 5 (
page 434) up or down
repeatedly until desired air distribution
is set.
The direction of the arrows represent
the air distribution. “MAN” appears in
the display over the button for the func-
tion mode.

Adjusting air volume Press air volume
control 3 (
page 434) up or down.
The air volume is increased or de-
creased. “MAN” appears in the display
over the button for the function mode.
i
If the climate control system in the rear pas-
senger compartment is adjusted using COMAND
(
page 234), the) symbol appears in the
display of the rear control unit. The rear climate
control system can no longer be adjusted using
the rear control unit.

436 Controls in detailTrunkOpening trunk
A minimum height clearance of 5.9 ft.
(1.80 m) is required to open the trunk lid.Opening trunk from outside
1Trunk lid handle
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.

Pull on handle1.
or

Press and hold button Š on the
SmartKey or SmartKey with
KEYLESS-GO* until trunk unlocks and
begins to open.Opening trunk from inside
You can open the trunk from the inside if
the vehicle is stationary.
Vehicles without trunk opening/closing
system*
1Remote trunk opening switch

Press switch1 until the trunk begins
to open.
The trunk opens. The indicator lamp in
switch1 comes on and remains lit un-
til the trunk closed.
Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.!
The trunk lid swings open upwards automat-
ically. Always make sure that there is sufficient
overhead clearance.
!
Vehicles with trunk opening/closing sys-
tem*: To stop the opening procedure, press
buttonŠ on the SmartKey or SmartKey with
KEYLESS-GO*.

437 Controls in detailTrunk
Vehicles with trunk opening/closing
system*
1Remote trunk opening/closing* switch
Press and hold switch1 until the
trunk is opened.
The indicator lamp in switch1 comes
on and remains lit until the trunk
closed.
To interrupt the closing procedure:

Release switch1.Trunk opening-height restriction*
Vehicles with trunk opening/closing sys-
tem*:
The trunk lid opening height can be limited
when transporting goods on a roof rack
(e.g. presence of an optional MB sport lug-
gage container). When activated, the trunk
opens to approximately the height of the
roof edge.

Activate the limiting opening height of
trunk lid using the COMAND system
(page 227).
Closing trunkClosing trunk from outside manually
1Handles

Lower trunk lid by pulling firmly on
handles1.

Close trunk lid with hands placed flat
on trunk lid.
The power closing assist automatically en-
sures that the lid is pulled closed com-
pletely (
page 313).
i
Do not place the SmartKey in the open
trunk. You may lock yourself out.
i
If the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it. All turn signal lamps flash three times
to confirm locking.
Vehicles with KEYLESS-GO*: To prevent a possi-
ble inadvertent lockout, the trunk will open auto-
matically if a SmartKey with KEYLESS-GO is
recognized inside the vehicle or in the trunk. The vehicle is only locked when the turn signals
flash three times. If you are carrying a second
SmartKey with KEYLESS-GO with you, you can
still lock the vehicle.

438 Controls in detailTrunkClosing trunk from inside
automatically*In vehicles with trunk opening/closing sys-
tem* you can close the trunk from the in-
side using the remote trunk opening/
closing* switch.1Remote trunk opening/closing* switch
(vehicles with trunk opening/closing
system*)

Press and hold switch1 until the
trunk is closed.
The indicator lamp in the switch goes
out when the trunk is closed.
To interrupt the closing procedure:

Release switch1.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk. Be espe-
cially careful when small children are
around.
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 may cause an accident
and/or serious personal injury.Warning!
G
Maintain sight of trunk area while operating
door mounted switch. Monitor the closing
procedure carefully to make sure no one is
in danger of being injured.
To interrupt the closing procedure, release
the door mounted remote trunk open-
ing/closing* switch again.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the remote trunk
opening/closing* switch can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.
i
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has been
piled too high) in the upper motion sequence, the
closing procedure is stopped and the trunk re-
opens slightly.

439 Controls in detailTrunk
Closing trunk from outside
automatically*
In vehicles with trunk opening/closing sys-
tem* you can close the trunk separately
from the outside using the trunk closing
switch.
Vehicles without KEYLESS-GO*1Trunk closing switch
Vehicles with KEYLESS-GO*1Trunk closing switch
Press trunk closing switch1 briefly.
The trunk closes.
Warning!
G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk lid opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
do one of the following:

press button Š on the SmartKey


press the trunk opening/closing*
switch (on the driver’s door)


press trunk closing switch


press the KEYLESS-GO locking/closing
switch*
Even with the SmartKey removed from the
starter switch, the trunk opening/closing*
switch can be operated. Therefore, do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
i
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has been
piled too high) in the upper motion sequence, the
closing procedure is stopped and the trunk re-
opens slightly.