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Home >> Mercedes Benz >> 2007 >> S550 Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seats, Restraint Systems -- Basic Knowledge -- S-Class (221) >> Basic Knowledge >> NECK-PRO head restraint, component description - GF91.16-P-2030SX

NECK-PRO head restraint, component description - GF91.16-P-2030SX

MODEL 221.0 /1 as of 1.9.06 up to Model Year 8 

Fig 1: Identifying Neck-Pro Head Restraint And Neck-Pro Head Restraint Solenoids
G07601652Courtesy of MERCEDES-BENZ USA

Location 

The NECK-PRO head restraints are installed on the front seats instead of the regular head restraints.

Task 

In the event of a crash, the NECK-PRO head restraint is moved forward in order to reduce the distance to the driver's head.

Function 

The restraint systems control unit (N2/7) actuates the solenoids. Thanks to a pre-compressed spring, the impact plate of the NECK-PRO head restraint moves forward and at the same time upward.

With the aid of a counter magnetic field, the NECK-PRO head restraint is retained in this position. It is released again by the restraint systems control unit.