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Replacing the Coolant in a Smart Fortwo

Model: Smart Smart 451 - Years 2007-2015
Part: Antifreeze coolant

Today's step-by-step instructions will show you how to replace the coolant in a Smart Fortwo. First, raise the vehicle and start by undoing the coolant drain screw located above the oil filter, allowing it to drain into a container for about ten minutes; then replace the washer on the drain screw. Next, undo the cap of the radiator expansion tank and top up with new antifreeze; it must be suitable and anti-corrosive for your radiator, filling it to the maximum level mark.

Updated on 20 August 2026 by ScegliAuto

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