MERCEDES-BENZ R320 2008 W251 Owner's Manual

240 Controls in detail
3-zone automatic climate control*
Rear automatic climate control
(second and third row)*
The rear automatic climate control for the
second and third row* is operated in the
same manner as the rear automatic
climate control for the second row
(
page 236).
Air vents are located in the left and right
side trim below the rear quarter windows.
1Defrost air vent for rear quarter
window, fixed
2Air vent, adjustable
3Thumbwheel for air volume controlAdjusting air volume
Turn thumbwheel 3 downwards to
increase the air volume.
or
Turn thumbwheel 3 upwards to
decrease the air volume.
Adjusting air distribution
Move air vent slider 2 to the left, right,
up, or down.
The air is directed in the desired
direction.

241 Controls in detail
Power windows
Power windows
The door windows and the hinged quarter
windows* are opened and closed electri-
cally. The switches for all door windows
and the hinged quarter windows* are
located on the driver’s door control panel.
The switches for the respective door win-
dows are located on the front passenger
door and the rear doors. The hinged
quarter windows* can be operated from
the driver’s seat only.
Switch on the ignition (page 39).
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 97)
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 door window and open it slightly.
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 the door handle, the
automatic reversal function will not operate.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from starter switch, take it with you, and
lock the vehicle. Do not leave childrenunattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
iYou can also open or close the windows
using the SmartKey, see “Summer opening
feature” (
page 244) and “Convenience
closing feature” (
page 245).
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 210) or automatic
climate control* (
page 224) is pressed and
held.
iAfter switching off the ignition (page 39)
or removing the SmartKey from the starter
switch, the windows can be operated

until you open the driver’s or front passenger
door

for at least 5 minutes if nor door was opened

242 Controls in detail
Power windows
Door windows
1Left front door window
2Right front door window
3Right rear door window
4Left rear door windowOpening the door windows
Press switch1, 2, 3, or4
(
page 242) 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 242) to the resistance point.
The corresponding door window moves
upwards until you release the switch.Fully opening the door windows
(Express-open)
Press switch1, 2, 3, or4
(
page 242) 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 242) past the resistance point
and release.
The corresponding door window closes
completely.
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
obstruction including but not limited to
arms, hands, fingers, etc., the automatic
reversal will not operate.
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.

243 Controls in detail
Power windows
Remove the obstruction.
Pull the respective door window switch
past the resistance point again and
release.
Stopping door windows during
Express-operation
Press or pull the respective door
window switch again.
Hinged quarter windows*
The switches for opening and closing the
hinged quarter windows are located on the
door control panel of the driver’s door.
1Hinged quarter windows: opening
2Hinged quarter windows: closingOpening
Press and release switch 1.
To stop the hinged quarter window:
Press and release switch 1 once
more.
Closing
Press and release switch 2.
To stop the hinged quarter window:
Press and release switch 2 once
more.
iIf the upward movement of a door window is
blocked during the closing procedure, the door
window will stop and open slightly.
iIf 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.
iWhen the obstruction sensor detects the
hinged quarter window is blocked during the
closing process, it will stop and open slightly.

244 Controls in detail
Power windows
Synchronizing the door windows
The door windows must be synchronized

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 39).
Pull and hold switch1, 2, 3, or4
(
page 242).
Once a door window is closed
completely, hold the respective switch
for approximately 3 seconds.
The door window is synchronized.
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 hinged quarter windows*

opening the tilt/sliding sunroof* (or
the tilt/sliding panel*)

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.
Vehicles without tilt/sliding panel
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding sunroof* have reached
the desired position.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
iEach door window must be synchronized
separately.

245 Controls in detail
Power windows
Vehicles with tilt/sliding panel*
If roller sunblinds are closed:
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO*.
The windows and roller sunblinds begin
to open after approximately 1 second.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
With the windows and roller sunblinds
fully opened, press and hold
buttonŒon the SmartKey or
SmartKey with KEYLESS-GO* once
more.
The tilt/sliding panel opens.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.If roller sunblinds are open:
Press and hold buttonŒon the
SmartKey or SmartKey with
KEYLESS-GO*.
The windows and the tilt/sliding panel
begin to open after approximately
1 second.
Release buttonŒon the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the opening procedure.
Convenience closing feature
When locking the vehicle, you can simulta-
neously close

the door windows

the hinged quarter windows*

the tilt/sliding sunroof* (or the
tilt/sliding panel*)
Warning!G
When closing the windows and the
tilt/sliding sunroof* (or tilt/sliding panel*),
make sure that there is no danger of anyone
being harmed by the closing procedure.
If potential danger exists, proceed as
follows:

Release button‹to stop the closing
procedure. To open, press and hold
button Œ. 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 ‹.


246 Controls in detail
Power windows
Vehicles without tilt/sliding panel
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding sunroof* are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the tilt/sliding
sunroof* are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.Vehicles with tilt/sliding panel*
If tilt/sliding panel is closed:
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the roller sunblinds are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
Vehicles with KEYLESS-GO*:

Release the lock button (page 68) on
the driver’s outside door handle to stop
the closing procedure.

Immediately pull on the same outside
door handle and hold firmly. The
windows and the tilt/sliding sunroof*
(or tilt/sliding panel*) will open for as
long as the door handle is held but the
door is not opened.


247 Controls in detail
Power windows
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the roller sunblinds
are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.
If tilt/sliding panel is open:
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle
(
page 244).
The SmartKey or SmartKey with
KEYLESS-GO* must be in close
proximity to the driver’s door handle.
Press and hold button‹on the
SmartKey or SmartKey with
KEYLESS-GO* until the windows and
the tilt/sliding panel* are completely
closed.
Release button‹on the SmartKey
or SmartKey with KEYLESS-GO* to
interrupt the closing procedure.
With the windows and the tilt/sliding
panel completely closed, press and
hold button‹on the SmartKey or
SmartKey with KEYLESS-GO* once
more.
The roller sunblinds close.
Vehicles with KEYLESS-GO*:
Press and hold the lock button on an
outside door handle (
page 68) until
the windows and the tilt/sliding panel*
are completely closed.
Release the lock button on the outside
door handle to interrupt the closing
procedure.
With the windows and the tilt/sliding
panel completely closed, press and
hold the lock button on an outside door
handle (
page 68) once more.
The roller sunblinds close.

248 Controls in detail
Power tilt/sliding sunroof*
Opening and closing
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
obstruction 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
halted by releasing the switch or, if the
switch was moved past the resistance point
and released, by moving the switch in any
direction.
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
unattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in 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.
!Please keep in mind that weather conditions
can sometimes change rapidly. Make sure to
close the tilt/sliding sunroof when leaving the
vehicle. If water enters the vehicle interior,
vehicle electronics could be damaged which is
not covered by the Mercedes-Benz Limited
Warranty.
iWhen the tilt/sliding sunroof is open,
resonance noises may result in addition to the
usual wind noises. They are caused by minimal
pressure changes in the passenger compart-
ment. To reduce or eliminate theses noises,
change the position of the tilt/sliding sunroof or
open a door window slightly.

249 Controls in detail
Power tilt/sliding sunroof*
The tilt/sliding sunroof is opened and
closed electrically. The switch for the
tilt/sliding sunroof is located on the
overhead control panel.
Sunroof switch
1Push back to slide sunroof open
2Push forward to slide sunroof closed
3Push up to raise sunroof at rear
4Pull down to lower sunroof at rear
With the sunroof closed or tilted open, a
screen can be slid into the roof opening to
guard against sun rays. When sliding the
sunroof open, the screen will also retract.
Switch on the ignition (page 39).
Opening and closing
To open, close, raise, or lower the
tilt/sliding sunroof, move the sunroof
switch to the resistance point in the
required direction of arrows1to4
(
page 249).
Release the sunroof switch when the
tilt/sliding sunroof has reached the
desired position.
iYou can also open or close the tilt/sliding
sunroof using the SmartKey or the
KEYLESS-GO* function, see “Summer opening
feature” (
page 244) and “Convenience clos-
ing feature” (
page 245). Depending on the
current position, the tilt/sliding sunroofs may
also open or close when the air recirculation
button: on the control panel of the climate
control (
page 210) or automatic climate
control* (
page 224) is pressed and held.