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Occupant safety
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The ETDs are designed to activate in the
following cases:
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in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
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in certain vehicle rollovers
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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.
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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.
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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.
Active head restraints (except C 63
AMG)
The active head restraints are intended to
offer the driver and front passenger increased
protection from whiplash-type injuries. In the
event of a rear-end collision, the active head
restraints on the driver’s and front
passenger’s seat are designed to move
forward in the direction of travel, providing
the head with increased support earlier on in
the collision sequence. The active head
restraints move forward whether the seat is
occupied or not.
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Warning!
Do not attach any objects (e.g. hangers) to
the head restraint posts. Otherwise, the
active head restraints may not be able to
function properly or offer the intended
degree of protection they were designed for
in the event of a rear-end collision.
If the active head restraints have been
triggered in an accident, the active head
restraints must be reset. Otherwise, the
active head restraints cannot offer any
additional protection in the event of another
rear-end collision.
For information on resetting the activated
active head restraints, see “Resetting
activated head restraints” (Y page 353).
You cannot remove the active head restraint
on the driver’s and front passenger’s seats.
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Warning!
Only use seat or head restraint covers
which have been tested and approved by
Mercedes-Benz for your vehicle model.
Using other seat or head restraint covers
may interfere with or prevent the activation
of the active head restraints and/or the
deployment of the front side impact air
bags.
Contact an authorized Mercedes-Benz
Center for availability.
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Warning!
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level. This will reduce the
Safety and security
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