Notes on seat occupied recognition - AH91.60-P-0760-01P

WARNING: This page is about a different car, the 2009 Mercedes-Benz CLK350 and 2008 Mercedes-Benz CLK350. However, it is still accessible from the selected car via links, so may be relevant.

Model 171 as of 1.6.06, 172, 203.0/2 as of 1.6.04, 203.7 as of 1.4.04, 209 as of 1.6.04, 230 as of 1.3.06 and model 240 as of 1.9.06 with code (494) USA version

Shown on front passenger seat, model 203

Fig 1: Locating Pressure Sensor & WSS Control Unit

Courtesy of MERCEDES-BENZ USA

When removing the seat cushion, the connectors on pressure sensor (B48/4) (model 171, 203, 209, 230) or on seat occupied recognition pressure sensor (B48/4) (model 172, 240) and on WSS (Weight Sensing System) control unit (N2/13) (model 203, 209) or on Weight Sensing System (WSS) control unit (N110) (model 171, 172, 230, 240) must not be disconnected.

Disconnecting the connectors causes malfunctions of the supplemental restraint system (SRS) at the passenger side.

The new seat cushion is always supplied complete with pressure sensor (B48/4) (model 171, 203, 209, 230) or seat occupied recognition pressure sensor (B48/4) (model 172, 240) and WSS (Weight Sensing System) control unit (N2/13) (model 203, 209) or Weight Sensing System (WSS) control unit (N110) (model 171, 172, 230, 240) and is calibrated beforehand.