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

MODELS 211.0/2 as of 1.6.05

Shown on model 211.0

Fig 1: Locating Driver And Front Passenger NECK-PRO Head Restraint Solenoids

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

The NECK-PRO head restraints are located on the driver and front passenger seat.

Function diagram of the NECK-PRO head restraint

Fig 2: Identifying NECK-Pro Head Restraint In Basic And After Rear End Collision Position

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task

The NECK-PRO head restraints reduce the distance between the driver's and front passenger's head and the head restraint.

Design

The NECK-PRO head restraints include:

the driver NECK-PRO head restraint solenoid (Y24/12)
the front passenger NECK-PRO head restraint solenoid (Y24/13)
as well as the complete triggering mechanism.

Function

The impact plate of the NECK-PRO head restraints is held in the rest position by a locking lever.

In the event of a rear end collision, the magnetic force of attraction that holds the locking lever in position is neutralized by energizing the solenoids.

Thanks to a pre-compressed spring, the impact plate moves forward and at the same time upward. This reduces the distance between the head and the head restraint.

The integrated crash locking devices prevent the impact plate from recoiling, caused by the driver's head being thrown back.

The solenoids are actuated for at least 15 ms to ensure that the NECK-PRO head restraints are triggered.

Resetting of the NECK-PRO head restraints

If during an accident the NECK-PRO head restraints were triggered, the NECK-PRO head restraints can be reset using a reset tool.