Useful features
141
location. 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.
To adjust the speaker volume during a Tele
Aid call do the following:
X
Press button
æ
or
ç
on the
multifunction steering wheel.
or
X
Use the adjustment button on your
COMAND system.
System self-test
The system performs a self-test after you
have switched on the ignition.
If the indicator lamps in the SOS button, in
the Roadside Assistance button
p
,
and/or in the Information button
¡
do
not come on during the system self-test, 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-
test, a malfunction in the system has been
detected.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. In case of an emergency, help
will have to be summoned by other means.
Have the system checked at the nearest
Mercedes-Benz Center or contact the
Response Center at 1-800-756-9018 (in
the USA) or 1-888-923-8367 (in Canada) as
soon as possible.
Emergency calls
!
In order to activate the Tele Aid system, a
subscriber agreement must be completed.
To ensure your system is activated and
operational, please press the
¡
button
to perform the acquaintance call. Failure to
complete either of these steps may 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).
An emergency call is initiated automatically
following an accident in which the Emergency
Tensioning Devices (ETDs) or air bags deploy.
An emergency call can also be initiated
manually (
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
COMAND system is muted. When the
connection is established, the message
Call Connected
appears in the
multifunction display.
All information relevant to the emergency,
such as the location of the vehicle
(determined by the GPS satellite location
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 after the
emergency call has been initiated. The
Response Center will attempt to determine
more precisely the nature of the emergency
provided they can speak to an occupant of
the vehicle.
i
If no vehicle occupant responds, an
ambulance will be sent to the vehicle
immediately.
If the indicator lamp in the SOS button is
flashing continuously and there was no
Controls in detail
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