Check fuel pressure procedure for 281 engine in Smart 453, showing fuel line, distributor, adapter, pressure gauge, and hose connections.

Engine bay fuel pressure test setup with pressure gauge, hose, adapter, and connection points labeled 1-5.

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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.