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Occupant safety
59
The ETDs are designed to activate in the
following cases:
R
in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
R
in side impacts exceeding the system’s
preset deployment threshold on the far
side of the impact
R
in certain vehicle rollovers
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if the restraint systems are operational and
functioning correctly, see 1 indicator
lamp (Y page 45)
The ETDs for the front seats will only activate
if the front seat belts are fastened (latch plate
properly inserted into buckle).
The ETDs for the rear outer seats (sedan) or
second row outer seats (wagon) will activate
with or without the respective seat belts
fastened.
In an impact, the ETDs remove slack from the
seat belts in such a way that the seat belts fit
more snugly against the body. Seat belt force
limiters, when activated, are employed to
help reduce the peak force exerted by the
seat belts on occupants during a crash.
i
The ETDs do not correct an incorrect seat
position or incorrectly worn seat belts.
The ETDs do not pull occupants back
toward the seat backrest.
G
Warning!
Pyrotechnic ETDs that were activated must
be replaced.
For your safety, when disposing of the
pyrotechnic ETDs always follow our safety
instructions. These are available at any
authorized Mercedes-Benz Center.
Automatic comfort-fit feature seat belt
An automatic comfort-fit feature for the front
seats reduces the retracting force of the seat
belts when they are in normal use.
Preventive occupant safety (PRE-
SAFE
®
)
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Warning!
PRE-SAFE
®
is intended to reduce the
effects of an accident on vehicle occupants
who are wearing their seat belt properly.
Despite having the PRE-SAFE
®
system in
your vehicle, the possibility of injuries
occurring as a result of an accident cannot
be eliminated. Therefore, you should
always drive carefully and adjust your
driving to the prevailing road, weather, and
traffic conditions.
Your vehicle takes preventive measures to
better protect the occupants in the following
hazardous situations automatically.
PRE-SAFE
®
takes preventive measures in
R
emergency braking situations, e.g. if the
Brake Assist System (BAS) (Y page 72) is
activated
R
critical dynamic driving situations, e.g.
when the vehicle is understeering or
oversteering because it has exceeded its
physical limitations or in case of evasive
steering maneuvers at speeds above
approximately 85 mph (140 km/h)
When you are driving faster than 20 mph
(30 km/h), PRE-SAFE
®
takes the following
measures in such situations:
R
The front seat belts are pre-tensioned
automatically.
R
If the passenger seat is in an unfavorable
position, it will be adjusted to a better
position.
R
If the vehicle is in a critical dynamic driving
situation, the door windows and the tilt/
sliding sunroof also closes until only a small
gap remains.
Safety and security
Z