ME-SFI fuel injection and ignition system control unit output signals reference chart for 450/451/452/454 Smart models.

Schematic diagram showing ME-SFI control unit connections to engine sensors, injectors, ignition coils, and CAN bus.

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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.