Coolant change intervals for Smart engines M100/M200 and OM 600, plus antifreeze concentration calculation formulas.

Service table showing coolant specifications, change intervals, and antifreeze refill calculation examples with refrigerant protection chart.

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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.