Page 209 of 384

209 Controls in detail
Useful features
You can take and make telephone calls us-
ing the
í
and
ì
buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 117).
See separate operating manual for instruc-
tions on how to use the telephone.
Tele Aid
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-
o m m e n d t h a t y o u p u l l o v e r t o a s a f e l o c a t i o n
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.
Only operate the COMAND (Cockpit Man-
agement and Data System)
1 if road, weather
and traffic conditions permit.
1Observe all legal requirements.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of approx. 44 feet (ap-
proximately 13.5 m) every second.
!The initial activation of the Tele Aid sys-
tem may only be performed by com-
pleting the subscriber agreement and
placing an acquaintance call using the
SOS button. Failure to complete either
of these steps will result in a system
that is not activated. If the system is
not activated, the indicator lamp in the
SOS button stays on after turning key
in starter switch to position2 or press-
ing KEYLESS-GO* start / stop button
twice to position2 (
page 33). The
message
TELE AID – NOT ACTIVATED
will be shown in the multifunction dis-
play for approx. 10 seconds.
If you have any questions regarding ac-
tivation, please call the Response Cen-
ter at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada).
Page 210 of 384

210 Controls in detailUseful featuresThe Tele Aid system
(Telematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three types
of response:
Automatic and manual emergency
Roadside Assistance and
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 using the volume control on
the multifunction steering wheel. To raise,
press button
æ
and to lower, press
button
ç
.
To activate, press the SOS button, the
Roadside Assistance button
•
or
the Information button
¡
, depend-
ing on the type of response required.Shortly after the completion of your Ac-
quaintance Call, you will receive a user ID
and password via first call mail. By visiting
www.mbusa.com and selecting “Tele Aid”
( U S A o n l y ) , y o u w i l l h a v e a c c e s s t o a c c o u n t
information, remote door unlock, profile
and more.System self-check
Initially, after turning the key in starter
switch to position2, malfunctions are de-
tected and indicated (the indicator lamps
in the SOS button, the Roadside Assis-
tance button
•
and the Information
button
¡
stay on longer than
10 seconds or do not come on). The mes-
sage
TELE AID – VISIT WORKSHOP!
ap-
pears for approx. 10 seconds in the
multifunction display.
iThe SOS button is located above the in-
terior rear view mirror.
The Roadside Assistance button
•
and the Information button
¡
are
located below the center armrest cov-
er.
!The Tele Aid system utilizes the cellular
network for communication and the
GPS (Global Positioning System) satel-
lites for vehicle location. If either of
these signals are unavailable, the
Tele Aid system may not function and if
this occurs, assistance must be sum-
moned by other means.
Page 211 of 384

211 Controls in detail
Useful features
Emergency calls
An emergency call is initiated automatical-
ly:
following an accident in which the
emergency tensioning devices (ETDs)
or airbags deploy
if the anti-theft alarm or the tow-away
alarm stays on for more than
20 seconds. See anti-theft alarm sys-
tem (
page 76) and tow-away alarm
(
page 78)
An emergency call can also be initiated
manually by opening the cover next to the
inside rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See below for instructions on
initiating an emergency call manually.
Once the emergency call is in progress, the
indicator lamp in the SOS button will begin
to flash. The message
EMERGENCY CALL –
CONNECTING CALL
appears in the multifunc-
tion display. When the connection is estab-
lished, the message
EMERGENCY CALL –
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.
When a voice connection is established the
audio system mutes and the message
TELE AID – CALL CONNECTED
appears in
the multifunction display. The Response
Center will attempt to determine more pre-
cisely the nature of the accident provided
they can speak to an occupant of the vehi-
cle.
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 dur-
ing the system self-check or if any of these
indicators remain illuminated constantly in
red and/or the message
TELE AID -
VISIT WORKSHOP!
is displayed in the multi-
function display after the system self-check,
a malfunction in the system has been de-
tected.
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.
Page 212 of 384

212 Controls in detailUseful featuresThe 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 cen-
terInitiating an emergency call manually
1SOS button
Briefly press on the cover of the emer-
gency call button with the
inscriptionSOS above the inside rear
view mirror.
The cover will open.
Press SOS button1 briefly.
The indicator lamp in SOS button1 will
flash until the emergency call is con-
cluded.
Wait for a voice connection to the Re-
sponse Center.
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 re-
sponse center.
Warning!
G
If the indicator lamp in the SOS button is il-
luminated continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant cellular phone network is not available).
The message
EMERGENCY CALL –
CALL FAILED appears in the multifunction
display for approx. 10 seconds.
Should this occur, assistance must be sum-
moned by other means.
Page 213 of 384

213 Controls in detail
Useful features
Close cover1 after the emergency call
is concluded.Roadside Assistance button
•
Located below the center armrest cover is
the Roadside Assistance button
•
.
Press and hold the button (for longer
than 2 seconds).
A call to a Mercedes-Benz Roadside As-
sistance dispatcher will be initiated.
The button will flash while the call is in
progress. The message
ROADSIDE AS-
SISTANCE – CONNECTING CALL
will ap-
pear in the multifunction display.
When the connection is established, the
message
ROADSIDE ASSISTANCE –
CALL CONNECTED
appears in the multifunc-
tion display. The Tele Aid system will trans-
mit 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. When a
voice connection is established the audio system mutes and the message
TELE AID
– ROADSIDE ASSISTANCE CALL CONNECTED
appears in the multifunction display.
Describe the nature of the need for as-
sistance.
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 ap-
ply. Refer to the Roadside Assistance man-
ual for more information.
These programs are 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.
Remote Vehicle Diagnostics: This func-
tion permits the Mercedes-Benz Road-
side Assistance dispatcher to
download malfunction codes and real
time vehicle data.
Warning!
G
If you feel at any way in jeopardy when in the
vehicle (e.g. smoke or fire in the vehicle, ve-
hicle in a dangerous road location), please
do not wait for voice contact after you have
pressed the emergency button. Carefully
leave the vehicle and move to a safe loca-
tion. The Response Center will automatically
contact local emergency officials with the
vehicle’s approximate location if they re-
ceive an automatic SOS signal and cannot
make voice contact with the vehicle occu-
pants.
Page 214 of 384

214 Controls in detailUseful features
Information button
¡
Located below the center armrest cover is
the Information button
¡
.
Press and hold the button (for longer
than 2 seconds).
A call to the Customer Assistance Cen-
ter will be initiated. The button will
flash while the call is in progress. The
message
INFO – CONNECTING CALL
will
appear in the multifunction display.
When the connection is established, the
message
INFO – CALL CONNECTED
appears
in the multifunction display. The Tele Aid
system will transmit data generating the
vehicle identification number, model, color
and location (subject to availability of cel-
lular and GPS signals).A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. When a voice connection is estab-
lished the audio system mutes and the
message
TELE AID – INFO CALL ACTIVE
appears in the multifunction display. Infor-
mation regarding the operation of your ve-
hicle, the nearest Mercedes-Benz Center
or Mercedes-Benz USA products and ser-
vices is available to you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you sep-
arately) to learn more (USA only).
iThe indicator lamp in the Roadside As-
sistance button
•
remains illumi-
nated in red for approx. 10 seconds
during the system self-check after turn-
ing the key in the starter switch to
position2 (together with the SOS but-
ton and the Information button
¡
).
See system self-check (
page 210)
when the indicator lamp does not light
up in red or stays on longer than ap-
proximately 10 seconds.
If the indicator lamp in the Roadside
Assistance button
•
is illuminated
continuously and there was no voice
connection to the Response Center es-
tablished, then the Tele Aid system
could not initiate a Roadside Assis-
tance call (e.g. the relevant cellular
phone network is not available). The
message
ROADSIDE ASSISTANCE –
CALL FAILED
appears in the multifunc-
tion display.
Roadside Assistance calls can be ter-
minated using the
ì
button on the
multifunction steering wheel.
iThe indicator lamp in the Information
button
¡
remains illuminated in red
for approx. 10 seconds during the sys-
tem self-check after turning key in the
starter switch to position2 (together
with the SOS button and the Roadside
Assistance button
•
).
Page 215 of 384

215 Controls in detail
Useful features
Upgrade Signals
The Tele Aid system processes calls using
the following priority:
Automatic emergency – First priority
Manual emergency – Second priority
Roadside Assistance – Third priority
Information – Fourth priority
Should a higher priority call be initiated
while you are connected, an upgrade (al-
ternating) tone will be heard, and the ap-
propriate indicator lamp will flash. If
certain information such as vehicle identi-
fication number or customer information is
not available, the operator may need to re-
transmit.
During this time you will hear a beep and
voice contact will be interrupted. Voice
contact will resume once the retransmis-
sion is completed. Once a call is conclud-
ed, a beep will be heard and the
appropriate indicator lamp will stop flash-
ing. The COMAND system operation will
resume. See System self-check (
page 210)
when the indicator lamp does not light
up in red or stays on longer than ap-
proximately 10 seconds.
If the indicator lamp in the Information
button
¡
is illuminated continuous-
ly and no voice connection to the Re-
sponse Center has been established,
then the Tele Aid system could not ini-
tiate an Information call (e.g. the rele-
vant cellular phone network is not
available). The message
INFO –
CALL FAILED
appears in the multifunc-
tion display.
Information calls can be terminated us-
ing the
ì
button on the multifunc-
tion steering wheel.
!If the indicator lamps do not start flash-
ing after pressing one of the buttons or
remain illuminated (in red) at any time,
the Tele Aid system has detected a
fault or the service is not currently ac-
tive, and may not initiate a call. Visit
your Mercedes-Benz Center and have
the system checked or contact the Re-
sponse Center at 1-800-756-9018 (in
the USA) or 1-888-923-8367 (in Cana-
da) as soon as possible.
Page 216 of 384

216 Controls in detailUseful features
Remote door unlock
In the event that you have locked your ve-
hicle unintentionally (e.g. key inside vehi-
cle), and the reserve key is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and press
the trunk lock for a minimum of
20 seconds until the SOS button is
flashing.
The message
EMERGENCY CALL –
CALL CONNECTED appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your Acquaintance Call.
!If the indicator lamp continues to flash
or the system does not reset, contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or
Mercedes-Benz Customer Assistance
at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Cus-
tomer Service at 1-800-387-0100 in
Canada.iThe indicator lamp in the correspond-
ing button flashes until the call is con-
cluded. Calls can only be terminated by
a Response Center or Customer Assis-
tance Center representative except
Roadside Assistance and Information
calls, which can also be terminated by
pressing button
ì
on the multifunc-
tion steering wheel.
iWhen a Tele Aid call has been initiated,
the audio system or the COMAND sys-
tem audio is muted and the selected
mode (radio, tape or CD) pauses. The
optional cellular phone (if installed)
switches off. If it is necessary for you to
use this phone, then the vehicle must
be at a standstill. Disconnect the coiled
cord and place the call. The COMAND
navigation system (if engaged) will con-
tinue to run. The display in the instru-
ment cluster is available for use and
spoken commands are only available
by pressing the RPT button on the CO-
MAND unit. A pop-up window will ap-
pear in the COMAND display to
indicate that a Tele Aid call is in
progress.