Renault Scenic Driver's Handbook Manual page 44

METHODS OF RESTRAINT IN ADDITION TO THE REAR SEAT BELTS
Depending on the vehicle, they com-
prise:
– seat belt pretensioners integrated
into the inertia reels (for the rear
second row seats);
– force limiter.
These systems are designed to act in-
dependently or together when the vehi-
cle is subjected to a frontal impact.
There are two possibilities, depending
on the force of the impact:
– protection is provided by the seat
belt alone;
– the pretensioner is triggered to take
up the slack in the seat belt and
the air bag inflates to cushion the
impact.
Rear seat belt pretensioners
This system is only operational when
the ignition is switched on.
If the vehicle is subjected to a severe
frontal impact, a device retracts the
seat belt, pulling the seat belt tight
against the body and thus improving its
effectiveness.
1.32
– Have the entire restraint
system checked following
an accident.
– No operation whatso-
ever is permitted on any part of
the system (pretensioners, air
bags, computers, wiring) and the
system components must not
be reused on any other vehicle,
even if identical.
– To avoid incorrect triggering of the
system which may cause injury,
only qualified RENAULT Network
personnel may work on the pre-
tensioner and air bag system.
– The electric trigger system may
only be tested by a specially
trained technician using special
equipment.
– When the vehicle is scrapped,
contact your RENAULT Dealer
for disposal of the pretensioner
and air bag gas generators.
Force limiter
Above a certain severity of impact, this
mechanism is used to limit the force of
the belt against the body so that it is at
an acceptable level.