Page 324 of 426

324 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Front Passeng.
Airbag
Enabled
See Oper. Manual
The passenger front air bag and
the passenger knee air bag are
activated while driving even
though a child, small individual,
or object below the system’s
weight threshold is on the pas-
senger seat, or the passenger
seat is empty. Objects on the
seat or forces acting on the seat
may make the system sense
supplemental weight.
Stop the vehicle in a safe location as soon as possible and
check the passenger seat for the following:
Switch off the ignition (
page 40).
Apply the parking brake (
page 55).
Remove child and child restraint from passenger seat.
Make sure that no objects which are applying supplemen-
tal weight onto the seat are present. The system may rec-
ognize such supplemental weight and sense that an
occupant on the passenger seat is of a greater weight
than actually present.
Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
(Continued on next page)
Page 325 of 426

325 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solutionWith the seat unoccupied and the ignition switched on,
the PASSENGER AIR BAG OFF indicator lamp (
page 70) should
illuminate and remain illuminated, indicating that the OCS
(
page 67) has deactivated the passenger front air bag and the
passenger knee air bag.
the message
Front Passeng. Airbag Enabled See Oper. Manual
or the message
Front Passeng. Airbag Disabled See Oper. Man-
ual
should not appear in the multifunction display at any time the
seat is unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure neither
message appears in the multifunction display.
If above conditions are met, you can occupy the passenger seat again.
Depending on the passenger classification sensed by the OCS
(
page 67), the PASSENGER AIR BAG OFF indicator lamp will remain
illuminated or go out.
If above conditions are not met, the system is not working properly.
Have the system checked as soon as possible by an authorized
Mercedes-Benz Center.
Warning!
G
If the PASSENGER AIR BAG OFF indicator
lamp remains out even after performing the
above corrective steps, do not have any
children 12 years old and under and other
small individuals use the passenger seat
until the system has been repaired.
Page 326 of 426

326 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Front Passeng.
Airbag
Disabled
See Oper. Manual
The passenger front air bag is
deactivated while driving even
though an adult or someone
larger than a small individual is
occupying the passenger seat.
Forces acting on the seat may
make the system sense a
decrease in weight.
Stop the vehicle in a safe location as soon as possible and
check the passenger seat for the following:
Switch off the ignition (
page 40).
Apply the parking brake (
page 55).
Have the passenger vacate the seat and exit the vehicle.
Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
With the seat unoccupied and the ignition switched on,
the PASSENGER AIR BAG OFF indicator lamp (
page 70)
should illuminate and remain illuminated, indicating that
the OCS (
page 67) has deactivated the passenger front
air bag and the passenger knee air bag.
(Continued on next page)
Page 327 of 426

327 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution
the message
Front Passeng. Airbag Enabled See Op-
er. Manual or the message
Front Passeng. Airbag
Disabled See Oper. Manual should not appear in the
multifunction display at any time the seat is unoccu-
pied. Wait at least 60 seconds for the system to com-
plete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification
sensed by the OCS (
page 67), the PASSENGER AIR BAG
OFF indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked as soon as possible by
an authorized Mercedes-Benz Center.
Warning!
G
If the PASSENGER AIR BAG OFF indicator
lamp remains illuminated with an adult oc-
cupant on the passenger seat even after
performing the above corrective steps, do
not have any passenger use the passenger
seat until the system has been repaired.