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Home >> BMW >> 2007 >> Z4 2D Convertible, Automatic >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Advanced Safety Electronics - Overview >> Advanced Safety Electronics (ASE) >> System Components >> Seat Belt Tensioner

Seat Belt Tensioner

The pyrotechnic seatbelt tensioner has the task in the event of a crash to remove or reduce any belt slack in the pelvic and shoulder region.

The seatbelt tensioner is located on the driver's and/or passenger seat. The seat belt tensioners form a unit with the seat belt buckle.

The seatbelt tensioner consists of priming cap, generator, plunger and operating cable. The belt buckle switch is integrated in the seatbelt buckle.

Fig 1: Identifying Seat Belt Tensioner
G03397765Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Battery Safety Terminal
G03397766Courtesy of BMW OF NORTH AMERICA, INC.