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Safety and Security
Occupant safety
Active head restraints
The active head restraints offer the driver’s
and front passenger increased protection
from whiplash type injuries. In the event of
a rear-end collision, the active head re-
straints on the driver’s and front passen-
ger’s seats 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 re-
straints move forward whether the seat is
occupied or not.
For information on resetting the activated
active head restraints, see “Resetting acti-
vated head restraints” (
୴ page 401).
You cannot remove the active head
restraint on the driver’s and front passen-
ger’s seat.
For removal of the active head restraints
we recommend that you contact an
authorized Mercedes-Benz Center.
For information on head restraint adjust-
ment, see “Seats” (
୴ page 41).
Warning! G
Do not attach any objects (e.g. hangers) to
the head restraint posts. Otherwise, the ac-
tive head restraints may not be able to func-
tion properly or offer the intended degree of
protection in the event of a collision.
Warning! G
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 active head restraint. Contact an autho-
rized Mercedes-Benz Center for availability.
Warning! G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraints 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 potential for
injury to the head and neck in the event of
an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.