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:
Setting the center vents in the rear
compartment
Example: center vents in the rear compartment
with rear control panel
1 Rear-compartment air vent thumbwheel
2 Rear-compartment air vent, right
3 Rear control panel
4 Rear-compartment air vent ...
SmartKey
Display messages
Key Does Not
Belong to Vehicle
Possible causes/consequences and ►
Solutions
You have put the wrong SmartKey in the ignition lock.
► Use the correct SmartKey.
Disp ...
Important safety notes
Observe the "Important safety notes"
section.
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle ...