Coolant system checking and refilling procedures for smart fortwo 453, including expansion tank location and cap removal sequence.

Diagram showing coolant expansion tank with numbered cap and filler locations, plus step-by-step refilling instructions.

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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.