Seat Belt Tensioner: Description and Operation

GF91.60-P-4058MCC Emergency Tensioning Retractor Component Description







1 Emergency tensioning retractor
R12/1 Driver GUS squib
R12/2 Front passenger GUS squib

Location
The emergency tensioning retractor is located at the inside of the B-pillar.

Task
The emergency tensioning retractors take up the seat belt slack in the event of a frontal impact or rear-end collision and prevent the film reel effect of the seat belts.
The close-fitting seat belt means that vehicle occupants are subjected to the deceleration forces acting on the body at an earlier stage.
Triggering is conducted by the restraint systems control unit (N2/7) igniting the squibs.