Three-way catalytic converter location and component description for 451/454 chassis with 132.9 engine.

Rear view of smart car showing catalytic converter mounted beneath rear bumper, with close-up detail of converter assembly.

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See all Powertrain figures for the Fortwo (450), 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.