Driver's Handbook

additional methods of restraint .............(up to the end of the DU)
seat belt pretensioners
front seat belt ...................................................(current page)
1.23
ENG_UD20337_1
Dispositifs de retenue complémentaires à la ceinture (X81 - J81 - Renault)ENG_NU_932-3_X81ph3_Renault_1
Additional methods of restraint
to the seat belt
METHODS OF RESTRAINT IN ADDITION TO THE FRONT SEAT BELTS (1/4)
These are:
– buckle pretensioners,
– lap belt pretensioners in the front
seats,
– force limiters,
– air bags for driver and front pas-
senger.
These systems are designed to act in-
dependently or together when the vehi-
cle is subjected to a frontal impact.
Depending on the severity of the
impact, the system can trigger:
– seat belt locking;
– the buckle pretensioner (which en-
gages to correct seat belt slack);
– the lap pretensioner, the low volume
front air bag and the force limiter;
– the large volume front air bag.
Pretensioners
In the event of a severe frontal impact
and if the ignition is switched on, the
system may engage the following de-
pending on the force of the impact:
– piston 1 which immediately retracts
the seat belt;
– piston 2.
The pretensioners hold the seat belt
against the body and thus increase its
efficiency.
1
2
– 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 personnel
from an approved dealer may
work on the pretensioner 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 an approved dealer for
disposal of the pretensioner and
air bag gas generators.