Steps from the European manual: REFILLING 1. Hang the expansion vessel (overflow bottle) as high as possible under the bonnet. 2. Remove the bleed screw 3. Fill through the radiator until the coolant runs through the bleed screw orifice. 4. Refit and tighten the bleed screw 5. Continue filling through the expansion vessel until coolant is level with the filler orifice 6. Refit the cap 7. Continue filling to bring the level in the expansion vessel between 30 and 40 mm (1 and 1,5 in) above