Coolant expansion reservoir cap and overflow tank location in engine bay, model 453 with 281/780 engines.

Engine bay photo showing coolant expansion reservoir with numbered callouts for cap and reservoir tank.

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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.