56 Safety and SecurityOccupant safety
Occupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are
Seat belts
Emergency tensioning device
Airbags
Child seats
Child seat recognition
Lower anchors and tethers for children
(LATCH)
As independent systems, their protective
effects work in conjunction with each oth-
er.The 1 indicator lamp in the instrument
cluster comes on
for about four seconds when you turn
the SmartKey in the starter switch to
position1 or press the KEYLESS-GO*
start/stop button once. It then goes
out briefly, comes on again and re-
mains lit until you start the engine.
for about four seconds when you start
the engine by turning the SmartKey or
pressing the KEYLESS-GO* start/stop
button.The restraint systems are fully operational
if the 1 indicator lamp is not lit when
the engine is running.
A malfunction in the system has been de-
tected if the 1 indicator lamp:
fails to go out after approximately four
seconds
does not come on at all
comes on after the engine was started
or while driving
For safety reasons, we strongly recom-
mend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
More information can be found in the
“Practical hints” section (
page 316).
iFor information on infants and children
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle”
(page 65).
iThe 1 indicator lamp comes on and
remains lit if the SmartKey is turned to
position2 and left there or the
KEYLESS-GO* start/stop button is
pressed twice. The indicator lamp will
go out when you start the engine.
250 Controls in detailUseful featuresYou can take and place telephone calls us-
ing thes andt buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(page 129).
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
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 when using the volume control
on the multifunction steering wheel. To
raise, press buttonæ and to lower,
press buttonç.
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 approximately
44 feet (approximately 13.5 m) every sec-
ond.Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle. Whether or not prohibited by law, for
safety reasons, the driver should not use the
cellular telephone while the vehicle is in mo-
tion.
Stop the vehicle in a safe location before an-
swering or placing a call.
!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 the
SmartKey in starter switch to
position2, or pressing the
KEYLESS-GO* start/stop button twice
to position2. The message
Tele Aid –
not activated
will be shown in the
multifunction display for approximately
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).
253 Controls in detail
Useful features
Initiating an emergency call manually
1Cover
2SOS button
Briefly press on cover1.
The cover will open.
Press SOS button2 briefly.
The indicator lamp in SOS button2
will flash until the emergency call is
concluded.
Wait for a voice connection to the Re-
sponse Center.
Close cover after the emergency call is
concluded.
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 approximately 10 seconds.
Should this occur, assistance must be sum-
moned by other means.
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.
254 Controls in detailUseful featuresRoadside 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 ACTIVE
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 authorized
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 a 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 actu-
al vehicle data.
iThe indicator lamp on the Roadside As-
sistance button• remains illumi-
nated in red for approximately
10 seconds during the system
self-check after turning the ignition on
(together with the SOS button and the
Information button¡).
See system self-check (
page 251)
when the indicator lamp does not come
on in red or stays on longer than ap-
proximately 10 seconds.
If the indicator lamp on 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.
255 Controls in detail
Useful features
Information button¡
The Information button¡ is located be-
low the center armrest cover.
Press and hold button (for longer than
2seconds).
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 is muted and the
message
TELE AID – INFO CALL ACTIVE
appears in the multifunction display. Infor-
mation regarding the operation of your ve-
hicle, the nearest authorized
Mercedes-Benz Center or Mercedes-Benz
USA products and services 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). Roadside Assistance calls can be ter-
minated using the tbutton on the
multifunction steering wheel.
iThe indicator lamp on the Information
button¡ remains illuminated in red
for approximately 10 seconds during
the system self-check after turning the
SmartKey in the starter switch to
position2 (together with the SOS but-
ton and the Roadside Assistance
button•).
See system self-check (
page 251)
when the indicator lamp does not come
on in red or stays on longer than ap-
proximately ten seconds.
If the indicator lamp on the Information
button¡ is illuminated continuous-
ly and there was no voice connection to
the Response Center established, then
the Tele Aid system could not initiate
an Information call (e.g. the relevant
cellular phone network is not avail-
able). The message
INFO –
CALL FAILED
appears in the multifunc-
tion display.
Information calls can be terminated us-
ing the tbutton on the multifunc-
tion steering wheel.
316 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
1
The red SRS indicator lamp
comes on while driving.
There is a malfunction in the restraint sys-
tems. The airbags or emergency tensioning
devices (ETDs) could deploy unexpectedly or
fail to activate in an accident.
Drive with added caution to the near-
est authorized Mercedes-Benz Cen-
ter.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an acci-
dent, which could result in serious or fatal
injury, or it might deploy unexpectedly and
unnecessarily which could also result in an
accident and / or injury to you or to others.