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Home >> Mercedes Benz >> 2021 >> CLA35 AMG >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Seats, Bunks, Restraint Systems (1 Of 2) -- 118 Chassis >> Basic Knowledge >> Weight Sensing System Control Unit, Basic Function - GF91.60-P-9891A
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Weight Sensing System Control Unit, Basic Function - GF91.60-P-9891A

Model All (CAR) 

with code U10 (Front passenger seat with weight sensor) 

Fig 1: Weight Sensing System Control Unit Components Location - Model All (Car) With Code U10
G16152348Courtesy of MERCEDES-BENZ USA

Example illustration of weight sensing system control unit 

Overview 

This document contains information on:

General 

The WSS/weight classification control unit (1) uses sensors or a sensor mat to determine the weight applied on a seat and provides the determined values to the restraint system control unit for precise control of the deployment stages of the airbag, among other things.

Function 

The WSS/weight classification control unit (1) determines the weight on the front passenger seat by means of a pressure measurement in a silicone-filled seat mat.

The WSS/weight classification control unit (1) reads in the signals of the WSS sensor directly and sends them to the Supplemental Restraint System (SRS) control unit, the powertrain control unit and/or the telematics services communication module, depending on the equipment installed.

  Component descriptions     
  Component description for Weight Sensing System (WSS) control unit Model 223
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046A
    Model 206
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046C
    Model 297
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046D
    Model 295
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046E
    Model 232
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046F
    Model 296
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046G
    Model 254
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046H
    Model 214
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046K
    Model 118
as of model year 2023
with code U10 (Front passenger seat with weight sensor)
Model 177, 247
as of model year 2022
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046L
    Model 294
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4046N
  Component description for Weight Sensing System (WSS) control unit Model 243
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4069B
    Model 118
as of model year 2023
with code U10 (Front passenger seat with weight sensor)
Model 177, 247
as of model year 2022
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4069L
    Model 167
as of model year 2023
with code U10 (Front passenger seat with weight sensor)
GF91.60-P-4069M