Mercedes-Benz C-Class Operator's Manual page 56

Occupant safety
54
Window curtain air bags
Window curtain air bags : are integrated into
the side of the roof frame and deployed in the
area from the A-pillar to the C-pillar.
When deployed, the window curtain air bag
enhances the level of protection for the head.
However, it does not protect the chest or arms.
In the event of a side impact, the window curtain
air bag is deployed on the side on which the
impact occurs.
If the system determines that they can offer
additional protection to that provided by the
seat belt, a window curtain air bag may be
deployed in other accident situations
( page 58).
Y
Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not disable:
the side impact air bag
R
the window curtain air bag
R
the Emergency Tensioning Devices
R
Prerequisites
To be classified correctly, the front passenger
must sit:
with the seat belt fastened correctly
R
in an almost upright position with their back
R
against the seat backrest
with their feet resting on the floor, if possible
R
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
transfers their weight by supporting them-
R
selves on a vehicle armrest
sits in such a way that their weight is raised
R
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g.
cushions. Fully retract the seat cushion length.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation instructions.
Occupant Classification System opera-
tion (OCS)
: PASSENGER AIR BAG ON indicator lamp
PASSENGER AIR BAG OFF indicator lamp
;
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
Press the Start/Stop button once or twice, or
X
turn the SmartKey to position 1 or 2 in the
ignition lock.
The system carries out self-diagnostics.