Weight Sensing System (WSS) Control Unit, Component Description - GF91.60-P-4069FR

Model 257, 290 up to Model year 2021 

View of front passenger seat 

Fig 1: Seat Occupancy Recognition/Weight Sensing System (WSS) Control Unit Components Location - Model 290 Up To Model Year 2021

Courtesy of MERCEDES-BENZ USA

Location 

The WSS control unit is installed at the bottom at the seat frame of the front passenger seat.

Task 

The WSS control unit determines the weight applied to the front passenger seat by means of a pressure measurement in a seat mat filled with silicone. The WSS control unit sends information on the weight classification over the seat occupancy LIN (LIN E2) to the supplemental restraint system control unit (N2/10).