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Safety and Security
Occupant safety
intensity for a maximum of 60 seconds
or until the driver’s and the front pas-
senger’s seat belt are fastened.
If you and/or your passenger release
the seat belt during driving, the seat
belt telltale < starts flashing and a
warning chime sounds as described be-
fore.
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 illu-
minated.
After a vehicle standstill the warning
chime is reactivated and the seat belt
telltale < is flashing again if the ve-
hicle speed once exceeds 15 mph
(25 km/h).
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”
(
୴ page 328).
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts for the front and rear outer
seats are equipped with emergency
tensioning devices and belt force limiters.
The ETD is designed to activate in the
following cases:
ț in frontal or rear-end impacts
exceeding the system deployment
threshold.
ț if the restraint systems are operational
and functioning correctly, see
1 indicator lamp (
୴ page 58).
When activated, emergency tensioning
devices remove slack from the belts. Belt
force limiters reduce the force exerted by
the seat belts on occupants during a crash.
i
The ETDs for the front seats will only acti-
vate if the respective front seat belt is fastened
(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
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing the emergency tensioning
device, our safety instructions must be
followed. These are available at your
authorized Mercedes-Benz Center.