234 Controls in detailAudio systemUsing your Mercedes-Benz specified mo-
bile telephone*, a number of functions and
operating steps can be performed and dis-
played in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the cellular telephone*.
If your audio system is set up for telephone
operation, the tsymbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the tele-
phone cradle, you will be prompted to en-
ter your PIN for 30 seconds (
page 234).
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. three
seconds.PROCESSING
appears in the display until
the telephone is off. Afterward,
PHONE OFF
appears in the display.PIN entry
Enter PIN number using buttons 1
to R.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press
OK soft key after entering correct
PIN.
READY
or
ROAMING
will appear in the dis-
play.
235 Controls in detail
Audio system
Adjusting the volume
Turn rotary control of N button dur-
ing a telephone call.
The volume will increase or decrease
depending on the direction turned.
Adjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 213).Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
After correct telephone number has
been entered, press s button.
Phone book
The numbers stored in the phone book of
the telephone can be called up either by
name or number.
In addition, incoming calls are stored in the
phone book.
iIf the PIN is entered incorrectly three
times,
NEED PUK
will appear in the dis-
play. Enter PUK via your telephone.
Please refer to the separate telephone
operating instructions for more infor-
mation.
iThe volume can be adjusted separately
for telephone mode and audio mode.
iIf the telephone number has been
saved together with a name in the tele-
phone book, the name will appear in
the display.
237 Controls in detail
Audio system
When you have selected a number,
press s button.
The call will be made.
Viewing the telephone number of a
telephone book entry
Search for desired entry.
Press
NUM
soft key.
The telephone number of the phone
book entry appears in the display.
Returning calls received
Press
MEM
soft key or press ‚or
ƒ.
Press
RCV
soft key (received calls).
The number of received calls and
then the call last received appear
briefly in the display.
Select desired telephone number
with button ‚or ƒ.
The letter
R and the number of the
memory position appear in the up-
per left-hand corner of the display.
The numbers are stored in the order
of the calls received.
When you have selected a number,
press s button.
The call will be made.
Speed dial
If you have stored telephone numbers
as speed dial numbers in your tele-
phone, you can also enter these with
buttons 1 to R on the radio
head unit.
Press desired button 1 to R
briefly.
Press s button.
The call will be made.
Turbo dial
If you have stored telephone numbers
as turbo dial numbers in your tele-
phone, you can also enter these with
buttons 1 to R on the radio
head unit.
Press desired button 1 to R
until the call is made.
239 Controls in detail
Audio system
Muting a call
It is possible to mute a call; the caller is
then no longer able to hear you.
Mute on
Press
MUT
soft key.
MIC MUTE
will appear in the display.
Mute off
Press
MUT
soft key again.
Terminating a call
Press t button.
The current call is terminated and the
muted audio source becomes active
again.Talking with two callers at the same
time
If you wish to receive or place another call
during an already active call, you can ac-
cept or place the second call and switch
between the callers or combine them into
one call. Note that the features described
here are depending on availability from
your mobile phone service provider.
Placing/accepting a second call
Place new call by entering tele-
phone number manually.
Press s button.
You are connected to the second
caller; the first caller is kept on
hold.
or
Press s button to accept a sec-
ond call.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.
iYou will be notified of the second call
acoustically, but you will not see this in
the display.
240 Controls in detailAudio system
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 phonesUsing your Mercedes-Benz specified mo-
bile telephone*, a number of functions and
operating steps can be performed and dis-
played in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the mobile telephone*.
If your audio system is set up for telephone
operation, the t symbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile telephone* into the tele-
phone cradle, you will be prompted to en-
ter your PIN for 30 seconds (
page 241).
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.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. 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 telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
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.
241 Controls in detail
Audio system
Switching on the telephone
Switching on the telephone
Press h button.
If you have programmed an unlock
code for the telephone, you must now
enter the code.
Enter code using buttons 1 to
R.
If necessary, correct number entered
with the
CLR
soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Press
OK soft key after entering correct
code.
The telephone is unlocked. If you have
entered an incorrect code, you must
enter the correct code.
Switching off the telephone
Press h button for approx. three
seconds.PROCESSING
appears in the display until
the telephone is off. Afterward,
PHONE
OFF
appears in the display.
Adjusting the volume
Turn rotary control of N button dur-
ing a telephone call.
The volume will increase or decrease
depending on the direction turned.Adjusting sound
Adjust sound during a telephone call.
Sound adjustment (
page 213).
Placing a call
Entering a telephone number and
starting the dialing process
Enter desired telephone number using
buttons 1 to R.
The number can have up to 32 digits,
but only twelve of these are visible in
the display.
iThe volume can be adjusted separately
for telephone mode and audio mode.
244 Controls in detailAudio system
Speed dial
If you have stored telephone numbers
as speed dial numbers in your tele-
phone, you can also enter these with
buttons 1 to R on the radio unit.
Press desired button 1 to R
briefly.
Press s button.
The call will be made.
Turbo dial
If you have stored telephone numbers
as turbo dial numbers in your tele-
phone, you can also enter these with
buttons 1 to R on the radio unit.
Press desired button 1 to R
until the call is made.Redial
If the number you have dialed is busy, you
can again place calls to the last ten tele-
phone numbers dialed using the redial
function.
Manual redial
Press s button.
The telephone number last dialed
will appear in the display.
Select desired telephone number
with button ‚or ƒ.
The letter
L and the number of the
memory position appears in the
left-hand corner of the display. The
numbers are stored in the order of
the calls made.
When you have selected a number,
press s button.
The call will be made.
iIf you have activated the automatic re-
dial function on your mobile telephone,
the number of the person being called
is automatically redialed after a short
waiting period if there is a busy signal.
Refer to the separate operating instruc-
tions for the mobile telephone.
289 Controls in detail
Useful features
You can take and place telephone calls
using thes andt buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(page 163).
See separate operating manual for instruc-
tions on how to use the telephone.
Tele Aid
The Tele Aid system
(Tele
matic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response:
automatic and manual emergency
roadside assistance and
informationThe Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and
cellular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted when using the volume control
on the multifunction steering wheel. To
raise, press buttonæ and to lower,
press buttonç. The volume can also be
adjusted using the volume knob on your
audio system or COMAND* head unit.
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.
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.
!The initial activation of the Tele Aid
system may only be performed by
completing the subscriber agreement
and placing an acquaintance call using
the¡ button. Failure to complete
either of these steps will result in a
system that is not activated.
If you have any questions regarding
activation, please call the Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
iThe SOS button is located above the
interior rear view mirror.
The Roadside Assistance button•
and the Information button¡ are
located below the center armrest
cover.