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75
Safety and Security
Occupant safety
Self-test Occupant Classification
System
After turning the SmartKey in the starter
switch to position 1 or 2, the
75 indicator lamp located in
the center console illuminates. If an adult
occupant is properly sitting on the passen-
ger seat and the system senses the occu-
pant as being an adult, the 75
indicator lamp will illuminate and go out
after approximately 6 seconds.
If the seat is not occupied and the system
senses the passenger seat as being empty,
the 75 indicator lamp will
illuminate and not go out.
More information can be found in the
“Practical hints” section (
୴ page 354).
Warning! G
If the 1 indicator lamp and the
75 indicator lamp are lit at the
same time, there is a malfunction in the
Occupant Classification System. The pas-
senger front air bag will be deactivated in
this case.
In order to ensure proper operation of the
air bag system and OCS:
ț Have the system checked as soon as
possible by qualified technicians.
Contact an authorized Mercedes-Benz
Center.
ț Sit properly belted in a position that is
as upright as possible with your back
against the seat backrest.
ț Do not lean on the armrests or lift your-
self from the seat by using the handle
over the door as this may cause the OCS
to be unable to correctly approximate
the occupant weight category.
ț Only have the seat repaired or replaced
by an authorized Mercedes-Benz
Center.
ț Read and observe all warnings in this
chapter.
Warning! G
If the 75 indicator lamp should
not illuminate, the system is not functioning.
You must contact an authorized
Mercedes-Benz Center before seating any
child on the passenger seat.
Warning! G
Never place anything between seat
cushion and child seat (e.g. pillow), since it
reduces the effectiveness of the Occupant
Classification System. The bottom of the
child seat must make full contact with the
passenger seat cushion. An incorrectly
mounted child seat could cause injuries to
the child in case of an accident, instead of
increasing protection for the child.
Follow the manufacturer’s instructions for
installation of child seats.