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Occupant safety
56
driver’s and front passenger’s seat belt are
fastened.
If you and/or your passenger release the
seat belt during driving, the seat belt
telltale < starts flashing and the
warning chime sounds as described before.
If the driver’s or the front passenger’s seat
belt remains unfastened after 60 seconds,
the warning chime stops sounding, the seat
belt telltale < stops flashing but
continues to be illuminated.
After a vehicle standstill, the warning chime
is reactivated and the seat belt telltale
< is flashing again if the vehicle speed
once exceeds 15 mph (25 km/h).
The seat belt telltale < will only go out if
both the driver’s and the front passenger’s
seat belt (with the front passenger seat
occupied) are fastened, or the vehicle is
standing still and a door is opened.
For more information, see “Practical
hints” (Y page 531).
Emergency Tensioning Device (ETD),
seat belt force limiter
The seat belts are equipped with ETDs and
seat belt force limiters.
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
R
if the restraint systems are operational and
functioning correctly, see = indicator
lamp (Y page 43)
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 seats 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
®
)
G
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.
Safety and security