233 Controls in detail
Audio system
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
descriptions 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. GSM network phones
Placing a “911” emergency call using
audio head unit with the phone lockedPress hbutton to switch to
telephone operation.
PIN? appears in the audio display.
Enter 911 using the number keypad on
the audio head unit.
Press OK soft key or sbutton for
dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency. Warning!G
The “911” emergency call system is a public
service. Using it without due cause is a
criminal 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.
234 Controls in detail
Audio system
Placing a “911” emergency call using
audio head unit with the phone
unlocked
Press hbutton to switch to
telephone operation.
Enter 911 using the number keypad on
the audio head unit.
Press sbutton for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency. TDMA/CDMA network phones
Placing a “911” emergency call using
audio head unit with the phone locked
Press hbutton to switch to
telephone operation.
CODE? appears in the audio display.
Enter 911 using the number keypad on
the audio head unit.
Press OK soft key or sbutton for
dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency. Placing a “911” emergency call using
audio head unit with the phone
unlocked
Press hbutton to switch to
telephone operation.
Enter 911 using the number keypad on
the audio head unit.
Press sbutton for dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency.
iIf no SIM card is in the mobile phone, NO
SERVICE
appears in the audio display. In that
case, you only can make an emergency call on
the mobile phone itself, without the use of the
head unit.
259 Controls in detail
Useful features
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.When the mobile phone is inserted in the
cradle, you can operate the telephone
using the following devices:
mobile phone keypad
COMAND* (see separate operating in-
structions)
buttonss andt on the multi-
function steering wheel (
page 149)
audio system (page 219)
Warning!G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.
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
mobile telephone while driving a vehicle.
Only operate the audio system or
COMAND*
1 if road, weather and traffic con-
ditions permit.
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.
iVarious mobile phone cradles can be in-
stalled in the center armrest, see separate in-
stallation instructions for the mobile phone
cradle. These mobile phone cradles can be
obtained from an authorized Mercedes-Benz
Center.
The functions and services available to you while
using the mobile phone depend on your service
provider and the type of mobile phone you are
using. See also separate operating manual for
instructions on how to use your mobile phone.
261 Controls in detail
Useful features
The mobile phone is linked to the
hands-free device and the multifunc-
tion steering wheel.
The battery is charged depending on its
charge status and the position of the
SmartKey in the starter switch. The
charge procedure will be indicated in
the mobile phone’s display.
You can place or receive phone calls. You
can control other functions of the mobile
phone via the control system
(
page 149), audio system (page 219),
or COMAND* (see separate operating in-
structions). Removing mobile phone from mobile
phone cradleExample illustration
1Release catch for mobile phone
2Mobile phone cradle
Press release catch in direction of
arrow1 and take mobile phone out of
mobile phone cradle2.Changing mobile phone cradle
If you require a different cradle for your
mobile phone, remove the present cradle
before installing a new one.
Removing an existing mobile phone
cradle
Example illustration
1To release the mobile phone cradle
2To remove the mobile phone cradle
3Mobile phone cradle
Press release button in direction of
arrow1 and take mobile phone
cradle3 out in direction of arrow2.
iWhen you take the SmartKey out of the
starter switch, the mobile phone remains
switched on for approximately 10 minutes. If
you place or receive a call during this time, the
mobile phone switches off 10 minutes after the
call has been completed.iWhen using a flip-style mobile phone, open
flip top before removing from the cradle while a
call is connected. Otherwise, the call will be dis-
connected.
262 Controls in detail
Useful features
Installing a different mobile phone
cradle
Example illustration
1Contact plate
2Recesses
3Mobile phone cradle
Insert mobile phone cradle3 into
recesses2 of contact plate1.
Push mobile phone cradle3 forward
until it engages.
Tele Aid*
Shortly after the completion of your Tele
Aid acquaintance call, you will receive a
user ID and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.The Tele Aid system
(Tele
matic Alarm Identification on
D
emand)
The Tele Aid system consists of three
types of response:
Automatic and manual emergency
Roadside Assistance
Information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular 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 or use the volume knob
on your audio system or COMAND* head
unit.
!The initial activation of the Tele Aid system
may only be performed by completing the sub-
scriber 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).
263 Controls in detail
Useful features
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.System self-check
Initially, after switching on ignition, mal-
functions are detected and indicated (the
indicator lamps in the SOS button, the
Roadside Assistance button•, and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
Tele Aid Inoperative appears
for approximately 10 seconds in the multi-
function display.
iThe SOS button is located in the overhead
control panel.
The Roadside Assistance button•
(
page 266) and the Information button¡
(
page 267) are located in the center armrest
storage/telephone* compartment.
!The Tele Aid system utilizes the cellular net-
work for communication and the GPS (Global
Positioning System) satellites for vehicle loca-
tion. If either of these signals are unavailable,
the Tele Aid system may not function and if this
occurs, assistance must be summoned by other
means.
iWhen a Tele Aid call has been initiated, the
audio system or COMAND* system audio is mut-
ed and the selected mode (radio, tape or CD)
pauses. The optional cellular phone* (if installed)
and inserted in cradle switches off. If you must
use this phone, we recommend that you use it
only with the vehicle at a standstill in a safe loca-
tion. Remove the phone from the cradle and
place the call. The COMAND* navigation system
(if engaged) will continue to run. The display in
the instrument cluster is available for use, and
spoken commands are only available by pressing
the RPT button on the COMAND* unit. A pop-up
window will appear in the COMAND* display to
indicate that a Tele Aid call is in progress. After
the Tele Aid call has ended, the optional cellular
phone switches on again. A PIN entry might be
necessary.
264 Controls in detail
Useful features
Emergency calls
An emergency call is initiated automatical-
ly following an accident in which the emer-
gency tensioning devices (ETDs) or
air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 265) for instruc-
tions on initiating an emergency call man-
ually.
Once the emergency call is in progress, the
indicator lamp in the SOS button will begin
to flash. The message
Connecting Call
appears in the multifunction display and
the audio system is muted. When the con-
nection is established, the message
Call Connected appears in the multifunc-
tion display. All information relevant to the
emergency, such as the location of the ve-
hicle (determined by the GPS satellite loca-
tion system), vehicle model, identification
number and color are generated.A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon af-
ter the emergency call has been initiated.
The Response Center will attempt to deter-
mine more precisely the nature of the
emergency provided they can speak to an
occupant of the vehicle.
The Tele Aid system is available if:
it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection
and cellular air time.
the relevant cellular phone network
and GPS signals are available and pass
the information on to the Response
Center.
Warning!G
If the indicator lamps in the SOS button, in
the Roadside Assistance button, and/or in
the Information button do not come on
during the system self-check or if any of
these indicators remain illuminated
constantly in red and/or the message
Tele Aid Inoperative is displayed in the
multifunction display after the system
self-check, a malfunction in the system has
been detected.
If a malfunction is indicated as outlined
above, the system may not operate as ex-
pected. Have the system checked at the
nearest Mercedes-Benz Center as soon as
possible.
iLocation of the vehicle on a map is only
possible if the vehicle is able to receive signals
from the GPS satellite network and pass the
information on to the Response Center.
266 Controls in detail
Useful features
Roadside Assistance button•
The Roadside Assistance button• is
located in the center armrest
storage/telephone* compartment
(
page 253).
1Roadside Assistance button
Open the storage/telephone* com-
partment (
page 253).
Press and hold button 1 (for longer
than 2 seconds).
A call to a Mercedes-Benz Roadside
Assistance dispatcher will be initiated.
The button will flash while the call is in
progress. The message
Connecting
Call
will appear in the multifunction
display and the audio system is muted.
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.
Describe the nature of the need for
assistance.The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest
Mercedes-Benz Center. For services such
as labor and/or towing, charges may
apply. Refer to the Roadside Assistance
manual for more information.
The following is only available in the USA:
Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.