Fuel tank vent line removal and installation for Smart 453 with engine 281, showing vent line routing and fuel tank vent valve Y58 location.

Engine bay photos showing fuel tank vent line components and valve locations for Smart 453.

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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.