Page 231 of 481

230 Controls in detailAudio system
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the cellular telephone*.
I f y o u r a u d i o s y s t e m i s s e t u p f o r t e l e p h o n e
operation, the tsymbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the
telephone cradle, you will be prompted to
enter your PIN for 30 seconds
(page 231). This display disappears
when you press any button.
When your mobile telephone* is inserted
into the telephone cradle, you will see the
reception strength in the upper right-hand
corner of the display.Switching on the telephone
Switching on the telephone
Pressh button.
If the telephone was previously
switched off,
PROCESSING
appears in
the display and you will then be
prompted to enter your PIN.
Switching off the telephone
Pressh button for approx.
3 seconds.PROCESSING
appears in the display until
the telephone is off. Afterward,
PHONE OFF
appears in the display.
Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone
1 while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.
Page 237 of 481

236 Controls in detailAudio system
You are connected with the second
caller; the first caller is kept on hold.
Switching between calls
Press 2 and s buttons.
This switches between the calls.
The non-active call is kept on hold.
Terminating a call
Press t button.
The current call is terminated. You
are again connected with the caller
previously placed on hold.
Combining two calls
Press 3 and s buttons.
The calls are combined into one
call.
Terminating a combined call
Press t button.
The connection to both callers is
terminated.
TDMA or CDMA network phones
iYou will be notified of the second call
acoustically, but you will not see this in
the display.
Warning!
G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone
1 while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.
Page 244 of 481

243 Controls in detail
Audio system
Terminating a call
Press t button.
The current call is terminated. The
connection to the caller previously
kept on hold is also interrupted;
however, reconnection is indicated
by an acoustic signal.
Combining two calls
Press s button.
The calls are combined into one
call.
Terminating a combined call
Press t button.
The connection to both callers is
terminated.
Emergency calls “911”
The following describes how to dial a “911”
emergency call using the audio system
head unit when a Mercedes-Benz specified
mobile phone* is inserted in the phone
cradle. Unless otherwise specified, the de-
scriptions refer to the audio system head
unit.
Consult the separate telephone operating
instructions that came with your mobile
phone* for information on how to place a
“911” emergency call on the mobile
phone*. The following conditions must be met for a
“911” emergency call:
Telephone must be switched on.
The corresponding mobile communica-
tions network must be available.
If you cannot make an emergency call, you
will have to initiate rescue measures
yourself.
Warning!
G
The “911” emergency call system is a public
service. Using it without due cause is a crim-
inal offense.
iEmergency calls may not be possible
with all telephone networks or if certain
network services and/or telephone
functions are active. Check with your
local service providers.
Page 247 of 481

246 Controls in detailPower windowsOpening and closing the windows
The windows are opened and closed eletri-
cally. Switches for operating the driver and
passenger door windows are located on
the driver’s door. A switch for operating
the passenger door window is located on
the passenger door.
The door windows can also be operated
using the retractable hardtop switch
(page 248). The rear side windows can
only be operated using the retractable
hardtop switch (
page 248) or the
SmartKey* (
page 249).
1Left window
2Right window
Warning!
G
When closing the windows, make sure 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.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If a door window encounters an
obstruction that blocks its path in a circum-
stance 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 a door 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*, by pushing
and holding the retractable hardtop switch,
or by pressing and holding the ,button
on the climate control panel or automatic
climate control* panel, the automatic rever-
sal function will not operate.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment can cause an
accident and/or serious personal injury.
Page 248 of 481

247 Controls in detail
Power windows
Switch on the ignition (
page 36).Opening the door windows
Press and hold switch1or2 at the
symbolk to the resistance point.
The corresponding window will move
downwards until you release the
switch.
Closing the door windows
Press and hold switch1or2 at the
symbolj to the resistance point.
The corresponding window will move
upwards until you release the switch.Fully opening the door windows
(Express-open)
Press switch1or2 at the
symbolk past the resistance point
and release.
The corresponding window opens
completely.
Fully closing the door windows
(Express-close)
Press switch1or2 at the
symbolj past the resistance point
and release.
The corresponding window closes
completely.
iYou can also open or close the
windows using the SmartKey*
(page 249) or the retractable
hardtop switch (
page 248).
You can close and open the windows
using the air recirculation switch,
in the control panel of the climate
control (
page 185) or the automatic
climate control* (
page 199).
iWith the SmartKey in starter switch
position0 or removed from the starter
switch, the door windows can be oper-
ated:
until you open a door
for at least 5 minutes
Warning!
G
If you press and hold the switch when clos-
ing the window, and upward movement of
the window is blocked by some obstruction
including but not limited to arms, hands, fin-
gers, etc., the automatic reversal will not op-
erate.
Warning!
G
Driver’s door only:
If the switch is pressed again past the resis-
tance point and released within 5 seconds,
the automatic reversal will not operate.
Page 249 of 481

248 Controls in detailPower windowsStopping windows during
Express-operation
Briefly press the respective switch at
the symbolkorj again.Opening and closing the windows with
the retractable hardtop switch
All windows can be opened or closed with
the retractable hardtop switch.
The retractable hardtop switch is located
on the lower part of the center console.
Retractable hardtop switch1Opening all side windows
2Closing all side windows
Switch on the ignition (
page 36).
!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 re-
spective switch at the symbolj
again past the resistance point and re-
lease.
If the window still does not close when
there is no obstruction, press and hold
the respective switch at the
symbolj. The window will then
close without the obstruction sensor
function.
Warning!
G
Never operate the windows if there is the
possibility of anyone being harmed by the
opening or closing procedure.
In case the procedure causes potential dan-
ger, the procedure can be immediately halt-
ed by releasing the retractable hardtop
switch.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the windows using the re-
tractable hardtop switch, the automatic re-
versal function will not operate.
Page 251 of 481

250 Controls in detailPower windowsOpening (Summer opening feature)
Press and hold buttonŒ.
The windows and retractable hardtop
begin to open after approximately
1 second.
In the multifunction display you will see
the message
Retractable roof in
operation
.
Release buttonŒ on the SmartKey
to interrupt procedure.Closing (Convenience closing feature)
Press and hold lock button‹.
The windows and retractable hardtop
begin to close after approximately
1 second.
In the multifunction display you will see
the message
Retractable roof in
operation
.
Release button‹ on the SmartKey
to interrupt procedure.
Warning!
G
When closing the side windows and retract-
able hardtop, 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‹.
Page 252 of 481

251 Controls in detail
Power windows
Synchronizing power windows
The power windows must be synchronized
after the battery has been disconnect-
ed or discharged.
if the power windows cannot be fully
opened (Express-open) or closed
(Express-close).Each power window must be synchronized.
Close all doors.
Switch on the ignition (
page 36).
Press and hold both switches1
and2 at the symbolj until the
windows are completely closed.
Hold on to switches1and2 for ap-
proximately 1 second.
The power windows are synchronized.
Warning!
G
If the retractable hardtop does not com-
pletely open or close, the roof hydraulics will
lose pressure and the retractable hardtop is
lowered
after approximately 7 minutes when the
ignition is switched on.
after approximately 15 seconds when
the ignition is switched off.
Shortly before the hardtop is lowered, a
warning will sound. In the multifunction dis-
play you will seeK and the message
Retractable roof being opened
.
Properly lock the retractable hardtop
(
page 255) before continuing to drive.