Smart Turbo System engine diagram showing fuel, air intake, exhaust, and sensor pathways with labeled components.

Schematic diagram of Smart turbocharged engine system with color-coded fluid and air flow paths and component labels.

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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.