Mercedes-Benz C-Class Coupe Operator's Manual page 52

Occupant safety
50
In order to ensure proper operation of the air
bag system and OCS:
Sit with the seat belt properly fastened in a
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position that is as upright as possible with
your back against the seat backrest.
When seated, a passenger should not posi-
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tion him/herself in such a way as to cause
the passenger's weight to be lifted from the
seat cushion as this may result in the OCS
being unable to correctly approximate the
passenger's weight category.
Read and observe all warnings in this chap-
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ter.
System self-test
The PASSENGER AIR BAG OFF indicator lamp
lights up if you:
turn the SmartKey to position 1 or 2 in the
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ignition lock
press the KEYLESS-GO Start/Stop button
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once or twice on vehicles with KEYLESS-GO
When an adult is sitting correctly on the front-
passenger seat and is categorized by the OCS
system as an adult, the PASSENGER AIR BAG
OFF indicator lamp lights up and goes off
again after approximately six seconds.
If the seat is not occupied and the OCS sys-
tem classifies the front-passenger seat as
being empty, the PASSENGER AIR BAG OFF
indicator lamp will continue to light up and not
go out.
WARNING
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If the 4 5 indicator lamp does not illu-
minate, the system is not functioning. You
must contact an authorized Mercedes-Benz
Center before seating any child on the front
passenger seat.
For more information about the OCS, see
"Problems with the Occupant Classification
System" ( page 51).
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G WARNING
Objects between the seat surface and the
child restraint system could affect OCS oper-
ation. This could result in the front-passenger
air bag not functioning as intended during an
accident. This poses an increased risk of
injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the forwards-
facing child restraint system must, as far as
possible, be resting on the backrest of the
front-passenger seat. Always comply with the
child restraint system manufacturer's instal-
lation instructions.