Weight Sensing System (WSS) components for passenger seat occupancy detection in Smart Fortwo 451, showing pressure sensor and control unit location.

Diagram of seat cushion frame with silicone oil-filled mat and WSS pressure sensor, plus overhead view of seat frame components.

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See all Electrical figures for the Fortwo (451), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.