System self-test
After you have switched on the ignition, the system carries out a self-diagnosis.
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
- the indicator lamp in the SOS button does not light up during the system selfdiagnosis.
- the indicator lamp in the 
Roadside
Assistance button does not light up during
the system self-diagnosis.
- The indicator lamp in the 
information
button does not light up during selfdiagnosis
of the system.
- the indicator lamp in the SOS button,
Roadside Assistance button or
information button continues to be lit red
after the system self-diagnosis.
- The Tele Aid Inoperative or Tele Aid Not Activated message appears in the multifunction display after the system selftest.
If a malfunction is indicated as outlined above, the system may not operate as expected. In the event of an emergency, assistance must be summoned by other means.
Have the system checked at the nearest authorized Mercedes-Benz Center or contact the following service hotlines:
- USA: Mercedes-Benz Customer Assistance Center under 1-800-FOR-MERCedes(1-800-367-6372) or 1-888-990-9007
- Canada: Customer Service at 1-888-923-83
See also:
Important safety notes
WARNING
Gasoline and diesel fuels are highly flammable
and poisonous. They burn violently and can
cause serious injury.
Never allow sparks, flames or smoking
materials near gasoline or die ...
Displaying the current fuelconsumption
► Press
on the steering wheel
to select the trip computer menu.
► Press
to select
Consumption.
The current fuel consumption is displayed.
...
Ride, Handling
With an air suspension that can be adjusted to varying levels, the S550 rides
with soothing composure. The BMW 7 Series is firmer, and the Jaguar XJ is
downright stiff in comparison. It's even mor ...