Replacing the coolant (Focus Turnier 1)

Ford recommends replacing the coolant only after 10 years or 240,000 km. Although this only applies to the original WSS-M97B44-D (Motorcraft Super Plus 2000) fluid. But if you still need to replace it or cannot clearly identify the fluid that has already been poured in, proceed as follows.

Release the pressure in the system through the expansion tank cap. Be careful when the engine is hot: risk of scalding.

Place a clean container under the radiator and remove the lower coolant hose clamp or the drain plug on the lower radiator box.

To help the coolant drain better, remove the cap from the expansion tank. Drain the coolant and cover the receiving container.

Install the lower coolant hose (use a new clamp if necessary). Tighten the screw plug.

Fill the expansion tank with the prescribed coolant. Top up the remainder to about 2 mm below the upper mark with tap water with a minimum lime content until no more air bubbles rise.

Start the engine and let it run at medium speed until the thermostat opens. If necessary, add water from the tap. The fluid level in the expansion tank should remain constant when the engine is warm.

Replace the sealing cap and take it for a test drive. Your Focus will bleed the cooling system on its own as you drive.

After a test drive, carefully open the expansion tank cap and let the engine run at medium speed until the radiator fan comes on.

If necessary, now top up the coolant with tap water up to the upper mark of the expansion tank.

Close the expansion tank cap.

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