ME-SFI fuel injection and ignition system component locations on 453.3 model with 281.910 engine.

Smart Fortwo 453 engine bay diagram showing fuel injection control unit, relays, sensors, and wiring locations.

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See all Powertrain figures for the Fortwo / Forfour (453), 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.