ML 320 (163.154) V6-3.2L (112.942) (1998)
Seat Belt Tensioner: Description and Operation
GF91.60-P-4002-02GH Driver/Front Passenger Emergency Tensioning Retractor, Function
GF91.60-P-4002-02GH Driver/Front Passenger Emergency Tensioning Retractor, Function
Function
The front seat belts have electronically controlled, pyrotechnical emergency tensioning retractors which automatically increase the tension on the seat
belts in the event of a collision (head-on or rear-end collision).
The crash is evaluated and, where necessary, the left front ETR squib (R12/1) and right front ETR squib (R12/2) are triggered by the ETR control
module with airbag (N2/2).