Fuel level display and mileage sensor differences between Smart Roadster and Fortwo models with compatibility troubleshooting.

Technical discussion of fuel gauge and odometer programming issues when swapping Roadster speedometer to Fortwo, includes photo of modified instrument cluster housing.

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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.