Mercedes-Benz 2007 SL 550, Operator'S Manual

Page: 73 / 473

72
Safety and Security
Occupant safety
The passenger front air bag will only be de-
ployed if:
앫
the system, based on OCS weight sen-
sor readings, senses that the front pas-
senger seat is occupied
앫
the
5/
indicator lamp in the
center console is not lit (
컄
page 76)
앫
the impact exceeds a preset deploy-
ment threshold
Knee bag
The knee bag is located on the driver-side
lower instrument panel. It is designed to
operate together with the driver air bag in
certain frontal impacts exceeding a preset
threshold. The knee bag operates best in
conjunction with a properly positioned and
fastened seat belt.
Head-thorax air bags
1
Head-thorax air bag
The head-thorax air bags are deployed:
앫
in impacts exceeding a preset deploy-
ment threshold
앫
on the impacted side of the vehicle
앫
independently of the front air bags
The head-thorax air bags are not deployed
in impacts which do not exceed the sys-
tem’s deployment threshold.
Occupant Classification System
The Occupant Classification System (OCS)
automatically turns the passenger front air
bag on or off based on the classified occu-
pant weight category determined by
weight sensor readings from the
passenger seat.
Occupants must sit properly belted in a
nearly upright position with their back
against the seat backrest and feet on the
floor to be correctly classified. If the
occupant's weight is transferred to
another object in the vehicle (e.g. by
leaning on armrests), the OCS may not be
able to properly approximate the
occupant’s weight category.
i
The system does not deactivate the
head-thorax air bag and the emergency tension-
ing device.