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 self-diagnosis.
• the indicator lamp in the Roadside Assistance button does not light up during the system self-diagnosis. 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. information button does not light up during selfdiagnosis of the system.
• the indicator lamp in the SOS button, information button continues to be Roadside Assistance button or lit red after the system self-diagnosis. 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 self-test.
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
1-888-923-8367

    See also:

    Change of direction announced without a lane recommendation
    1. Road into which the change of direction leads 2. Distance to change of direction and visual distance display 3. Current road 4. Symbol for change of direction When a change of di ...

    Activating RACE START
    •► Depress the brake pedal with your left foot, and keep it depressed. •► Turn the drive program selector clockwise until the RS lamp lights up. The multifunction display shows the RAC ...

    Important safety notes
    WARNING On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent ...