Mercedes-Benz 2007 S 550 Automobile User Manual


 
49
Safety and Security
Occupant safety
Front air bags
1 Driver air bag
2 Front passenger front air bag
Driver and front passenger front air bags
are deployed:
ț in the event of certain frontal impacts
ț if impact exceeds a preset deployment
threshold
ț independently of the side impact air
bags
The air bags will not deploy in impacts
which do not exceed the system’s deploy-
ment thresholds. You will then be protec-
ted by the fastened seat belts.
The passenger front air bag will only be
deployed if:
ț the system, based on OCS weight sen-
sor readings, senses that the front
passenger seat is occupied
ț the 59 indicator lamp in
the center console is not lit
(
page 53)
ț the impact exceeds a preset deploy-
ment threshold
Side impact air bags
1 Front side impact air bag
2 Rear side impact air bag
The side impact air bags are deployed:
ț in impacts exceeding a preset deploy-
ment threshold
ț on the impacted side of the vehicle
ț independently of the front air bags
The front passenger side impact air bag 1
will not deploy if the OCS senses that the
front passenger seat is empty and the front
passenger seat belt is not fastened (latch
plate is not inserted into the buckle). With
an empty front passenger seat and the
i
The front air bags in this vehicle have been
designed to inflate in two stages. This allows the
air bag to have different rates of inflation that are
based on the rate of relevant vehicle decelera-
tion as assessed by the air bag control unit
On the front passenger-side, the front air bag de-
ployment is additionally influenced by the pas-
senger’s weight category as identified by the
Occupant Classification System (OCS)
(
page 50).
The lighter the front passenger-side occupant,
the higher the vehicle deceleration rate required
for the second stage inflation of the air bag.