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:
Correct use of the seat belts
WARNING
USE SEAT BELTS PROPERLY
• Seat belts can only work when used
properly. Never wear seat belts in any other
way than as described in this section, as
that could result in seriou ...
Position of the steering wheel and the driver's seat when the
EASY-ENTRY/EXIT feature is active
The steering wheel tilts upwards and the
driver's seat moves backwards if you:
• remove the SmartKey from the ignition lock
• open the driver's door when the SmartKey
is in the ignition lock ...
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
- Open the driver's door.
- Close the front-passenger door, the rear
doors and the tailgate.
- Press the lockin ...