Mercedes-Benz GL-Class: 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: Response Center under
888-990-9007
• Canada: Customer Service at
1-888-923-8367
The mbrace system
The mbrace system provides different
services, e.g.:
• automatic and manual emergency call
• Roadside Assistance call
• MB Info call
To adjust the volume during an mbrace call,
proceed a ...
Emergency call
Important safety notes
A license agreement must exist in order
to activate the mbrace service. Ensure that
your system is activated and ready for use,
and press the MB Info call button
to
re ...
See also:
What to Use
Refer to Recommended Fluids and Lubricants to determine what kind
of lubricant to use. ...
Automatic climate control
Automatic operation
Cooling and/or dehumidified heating
(AUTO):
This mode may be used all year round. The
system works automatically to control the
inside temperature, air flow distribution
...
When to Check and Change Automatic Transmission Fluid
It is usually not necessary to check the transmission fluid level. The only reason
for fluid loss is a transmission leak or overheating the transmission. If a small
leak is suspected, then use the f ...
