76
Safety and Security
Occupant safety
exceeded 15 mph (25 km/h) if either
the driver’s or front passenger’s seat
belt remains unfastened.
If the driver’s or front passenger’s seat
belt remains unfastened after
60 seconds, the seat belt telltale <
stops flashing and the warning chime
stops sounding. The seat belt
telltale < then continues to be illu-
minated for as long as either the driv-
er’s or front passenger’s seat belt are
not fastened.
The seat belt telltale < will only go out
if both the driver’s and the front passen-
ger’s seat belt (with the front passenger
seat occupied) are fastened, or the vehicle
is standing still and a front door is opened.
For more information, see “Practical hints”
(
컄 page 401).
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts for the front and rear outer
seats are equipped with emergency ten-
sioning devices and belt force limiters.
The ETD is designed to activate in the
following cases:
앫 in frontal or rear-end impacts
exceeding a preset severity level
앫 in certain vehicle rollovers
앫 if the restraint systems are operational
and functioning correctly, see
1 indicator lamp (
컄 page 390)
In an impact, emergency tensioning
devices remove slack from the belts in
such a way that the seat belts fit more
snugly against the body. 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 for the front seats will only
activate if the front seat belt is fas-
tened (latch plate properly inserted
into buckle).
The ETDs for the rear outer seats will
activate with or without the respective
seat belt fastened.
Warning! G
A pyrotechnic emergency tensioning device
(ETD) that was activated must be replaced.
When disposing of the pyrotechnic emer-
gency tensioning device, our safety instruc-
tions must be followed. These are available
at your authorized Mercedes-Benz Light
Truck Center.
PRE-SAFE* has electrically operated
reversible pre-tensioners that do not require
replacement after activation.
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