Catalytic converter removal and installation procedure for 451 chassis with numbered callouts and O2 sensor connectors.

Engine bay photos showing catalytic converter location and O2 sensor connectors with numbered callouts and service procedure table.

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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.