Electric power steering system components and torque sensor operation on Smart Fortwo 451 chassis with numbered callouts.

Diagram of power steering torque sensor assembly with labeled components M19, B23, N68 and worm shaft mechanism.

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See all Chassis 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.