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Controls in detail
Useful features
System self-check
Initially, after turning the ignition
(position 2) on, malfunctions are detected
and indicated (the indicator lamps in the
SOS button, the Roadside Assistance
button • and the Information
button ¡ stay on longer than ten sec-
onds or do not come on). The message
Tele Aid defective! Visit workshop!
appears for approximately ten seconds in
the multifunction display.
Emergency calls
An emergency call is initiated
automatically:
ț following an accident in which the
emergency tensioning devices (ETDs)
or airbags deploy
ț if the anti-theft alarm or the tow-away
alarm stays on for more than
20 seconds, see “Anti-theft systems”
(
୴ page 82) and see “Tow-away alarm”
(
୴ page 84).
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 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.
i
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 is unavailable, the
Tele Aid system may not function and if
this occurs, assistance must be sum-
moned by other means.
Warning! G
If the indicator lamps in the SOS button, in
the Roadside Assistance button and/or in
the Information button remain illuminated
constantly in red and/or message
Tele Aid defective! Visit work-
shop!
is displayed in the multifunction dis-
play 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.