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XActivate Bluetooth® connection on the
mobile phone (see mobile phone operating
instructions).
XPress button % on the audio control unit
to call up the telephone mode.
iOn certain mobile phones, not only you
will have to activate the Bluetooth®
function but in addition, your own device
must be made "visible" for other devices.
Each Bluetooth® device has a Bluetooth®
device name. It is recommended to give
your mobile phone a personal name, by
which you can clearly recognize your
mobile phone.
iIf the Bluetooth® function on the audio
system is disabled, the message
Bluetooth not activated in system
settings appears.
XActivate Bluetooth® connection on the
audio system (Y page 135).
Xi Q System Q Activate
Bluetooth.
You have activated or deactivated
Bluetooth®. A checkmark appears when
Bluetooth® is activated.
Registering a mobile phone
(authorizing)
When you use your mobile phone in
conjunction with the audio system for the first
time, you must register (authorize) it.
It is possible to register up to 15 mobile
phones. The connection is always established
to the last activated mobile phones in signal
range. When you authorize a new mobile
phone, it is activated automatically. You can
switch between the authorized mobile
phones.
Searching for a mobile phoneX% Q Tel Q Bluetooth Phones
Q Update.
The audio system searches for up to 10
suitable Bluetooth® telephones within
range and enters them into the telephone
list.
Authorized Bluetooth® telephones will be
identified by a telephone-symbol L in front
of the list entry once the telephone list has
been updated. The symbol will be grayed
out if the authorized mobile phone is not
located within the Bluetooth® range.
iThe duration of the search procedure
depends on the number and type of
Bluetooth® telephones. The search may
take a few minutes.
iIf the telephone list is already full
(15 entries), you must de-authorize one of
the authorized devices (Y page 160), and
start the search again. Otherwise a new
device you are looking for will not appear
in the list.
If the audio system does not find your
mobile phone, external authorization may
be necessary (Y page 159).
Authorizing a Bluetooth® device
XSelect the desired unauthorized device
from the telephone list by pushing the
audio controller.
or
XSelect Options Q Authorize.
The input menu for the passcode appears.
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iThe passcode is any one- to sixteen-digit
number, which you can set yourself. For the
quality of coding of the connection it is
recommend to use a passcode of at least
four digits. You must enter the same
passcode into the audio system and the
device to be authorized. Also refer to the
operating instructions of the mobile phone.
On the audio system, you can enter the
passcode via the digits in the on-screen menu
bar or via the telephone keypad in the audio
control unit.
With the audio controller:XEntering passcode: Select the digits in the
menu bar one by one, by sliding XV Y or
rotating cV d the audio controller.XPress W to confirm each digit.XConfirming passcode: Select ¬ in the
menu bar and press W to confirm.XDeleting digits: Select 2 in the menu
bar and briefly press W to delete one digit,
or press and hold W to delete all entered
digits.XCanceling entry: Press button k in the
center console ( Y page 129).
With keypad on audio control unit:
XEntering passcode: Press the desired
numbers on the keypad.XConfirming passcode: Press button
6 or button m in the audio control
unit to confirm.XDeleting digits: Briefly press button
2 in the audio control unit to delete one
number, or press and hold button 2 to
delete all entered numbers.XCanceling entry: Press button k in the
center console ( Y page 129).
Entering passcode into the mobile phone
If a Bluetooth ®
connection is established
successfully, you will be prompted to enter a
code into the mobile phone (see mobile
phone operating instructions).
XEnter the same passcode on the mobile
phone as you did on the audio system.
i You may need to confirm the authorizing
on the mobile phone. Check your mobile
phone display.
If the message Authorization
Procedure Unsuccessful appears on the
audio system display, you may have
exceeded the preset period for
authorization. Repeat the process.
The device is authorized. You can now make
calls via the audio system hands-free device
using the authorized mobile phone.
External authorization
If the audio system cannot find your mobile
phone, this may be due to special security
settings on your mobile phone. In this case,
you can check whether, conversely, your
mobile phone can find the audio system. The
audio system’s Bluetooth ®
device name is
“MB Bluetooth”.
X% Q Tel Q Bluetooth Phones
Q Update Q Options Q External
Authorization .
The message Ready for External
Authorization appears.XStart Bluetooth®
search procedure on the
mobile phone (see mobile phone operating
instructions).XSelect the audio system (“MB Bluetooth”)
at your mobile phone.XWhen prompted to do so, enter the
passcode on the mobile phone and then on
the audio system.
Displaying details on a mobile phone
X% Q Tel Q Bluetooth Phones .XSelect the mobile phone from the list.Audio system159Controls in detailX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 159Z

XSelect Options Q Details.
The details screen for the device is shown
in the audio display.
XClosing details screen: Slide XVY, rotate
cVd or press W, or press button k.
De-authorizing a Bluetooth® device
X% Q Tel Q Bluetooth Phones.XSelect authorized device.XSelect Options Q De-Authorize.
A prompt appears asking whether you
really want to de-authorize this device.
XSelect Yes or No.
If you select Yes, the device will be de-
authorized.
iIf you de-authorize a device which has
been authorized in the past and which is not
detected in the search, this device will no
longer be displayed in the device list.
Devices which have been authorized in the
past but which are not detected in the
search are either not switched on or not in
the vehicle.
Activating another mobile phone
If you have several authorized mobile phones,
you can switch between the individual mobile
phones.
iYou cannot switch to another authorized
mobile phone during a call.
When you authorize a new mobile phone, it is
automatically activated. Only one mobile
phone can be active at a time.
X% Q Tel Q Bluetooth Phones.XSelect an authorized mobile phone from
the list.
XPress W to confirm.
The selected mobile phone will be searched
for and connected if it is located in the
Bluetooth® range and Bluetooth® is
activated on the corresponding device.
The selected mobile phone is activated.
A dot # in front of the entry, indicates the
current active mobile phone in the phone
list.
Receiving business cards
You can import business cards (vCards) into
the address book from external Bluetooth®
devices (Y page 162).
TEL-Basic display
XPress button % on the audio control unit
to call up the telephone mode.
When the connected mobile phone is ready
for operation, the display will look similar like
this:
The following information is displayed in the
status bar:
RActual time: 04:38
RBluetooth® device name of the connected
mobile phone, in this case: blue_mobile.
RMobile phone network signal strength
r. This information will only be shown
with suitable mobile phones.
The bars indicate the current signal
strength of the mobile phone network for
reception. Optimum reception is indicated
by all bars full. All bars empty indicates very
poor or no reception.
RReceiver symbol 6 or ~. The
receiver symbol indicates whether a call is
being connected or is in progress:
~ - not active
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RREADY indicates that a call is possible.
R NO SERVICE indicates that the mobile
network is not available.
Setting transmit and receive volume
i These settings should normally not be
changed as the factory settings are
matched to most mobile phones. Find out
about the optimum settings for your mobile
phone at an authorized Mercedes-Benz
Center.
i Changes may result in significant
impairments to the transmission quality.
These settings may not be changed during
an active phone call.
X% Q Tel Q Bluetooth Phones .XSelect a mobile phone from the list.XSelect Options Q Reception Volume or
Transmission Volume .XSetting the volume: Slide ZV Æ or rotate
c V d the audio controller.
The volume bar moves up or down.XExiting menu: Press W or slide XV Y the
audio controller or press button k.
Emergency calls “911”
i The “911” emergency call system is a
public service. Using it without due cause
is a criminal offense.
i This function places a call to the local
“911” provider. It does not initiate a Tele
Aid call.
The following describes how to dial a “911”
emergency call using the audio system head
unit when a Mercedes-Benz specified mobile
phone is connected via the Bluetooth ®
interface to the audio system. Unless
otherwise specified, the descriptions refer to
the audio system head unit.
Consult the separate mobile phone 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 via the audio system:
R Mobile phone must be switched on.
R The corresponding mobile
communications network must be
available.
i Emergency 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 and mobile phone instructions.
If you cannot make an emergency call, you
will have to initiate rescue measures yourself.
Placing a “911” emergency call using
audio control unit with the mobile
phone unlockedXPress button % to switch to telephone
mode.XEnter 911 using the number keypad on the
audio control unit.XPress button 6.
or
XPress W for dialing to begin.
Connecting... appears in the audio
display while the mobile phone establishes
the connection.XWait until the emergency call center
answers, then describe the emergency.
i Depending on the phone type, if no SIM
card is inserted in a GSM mobile phone or
if there is no service on a CDMA mobile
phone, NO SERVICE may appear in the
audio display. In that case, you only can
make an emergency call on the mobile
phone itself, without the use of the audio
control unit.
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Placing a “911” emergency call with the
mobile phone locked
iIf the mobile phone is locked, you only can
make an emergency call on the mobile
phone itself, without the use of the audio
control unit.
Phone book
You can save telephone numbers in the audio
system’s phone book.
iThese entries are retained even if you use
the audio system with another mobile
phone. You should delete these entries
before handing over or selling your vehicle.
Receiving business cards (vCards)
You can import business cards (vCards) from
external Bluetooth® phones into your audio
system’s phone book. To do this:
RBluetooth® must be activated on the audio
system and on the external Bluetooth®
phone (see the operating instructions of
the mobile phone).
RThe external Bluetooth® phone must be
able to send vCards via Bluetooth® (see the
operating instructions of the mobile
phone).
RThe external Bluetooth® phone in the
vehicle must be switched on and
authorized.
iIf you switch to a different mode while
vCards are being received (e.g., press
button $), reception of vCards will be
aborted.
X% Q Tel Q Receive Business
Card(s).
XPress W to confirm.XWait until the message Ready to
Receive - Received: 0 appears.
XImporting: Start the data transfer on the
external Bluetooth® phone (“Export
business cards (vCards)”, see the operating
instructions of the mobile phone).
The audio system imports the data for the
business cards and displays the number of
business cards received.
iSelect Back or switch to a different mode
to abort reception.
XEnding reception: Press W.
or
XPress button k in the center console
(Y page 129).
Deleting external Data
X% Q Tel Q Delete External
Data.
A prompt appears asking whether the data
should be deleted.
XSelect Yes or No.
If you select Yes all personal data are then
deleted from the phone book.
Opening the phone book
X% Q Name.
Entries in the phone book are displayed in
alphabetical order. The search speller is
active when more multiple entries are
available. The search speller appears on
the lower edge of the display.
You can use the search speller to reduce the
number of entries you need to make.
Symbol G indicates that an entry contains
more than one phone number. You can select
these subentries (Y page 164).
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Switching on or offXSwitching on: Switch on the ignition.XMake sure the rear view camera is switched
on in the COMAND system. For more
information refer to separate COMAND
operating instructions.
XSwitch on the COMAND system.XShift the automatic transmission to reverse
gear R.
The COMAND system display will show the
area behind the vehicle with guidelines.
GWarning!
Please note that objects which do not touch
the ground may appear to be further away
than they actually are, for example:
Rthe bumper of a vehicle parked behind you
Ra trailer hitch
Rthe back of a truck
In such cases, you should not use the
guidelines to judge the distance. You may
misjudge the distance which increases the
risk of impacting the objects.
Even when the object you approach is directly
on the ground do not approach the object any
closer than the red guideline.
Red guideline = indicates an approximate
distance of 10 in (0.25 m) from the rear of the
vehicle. Yellow guidelines ; indicate an
approximate distance of 3 ft (1 m) from the
rear of the vehicle. Blue guidelines :
indicate the approximate width required for
the vehicle.
iThe image from the rear view camera will
no longer be displayed if you select another
function on the COMAND system while
reverse gear R is engaged. To display the
image again, disengage and reengage
reverse gear R.
XSwitching off: Shift the automatic
transmission into park position P, neutral
position N, or drive position D.
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