Fixing all your keys
AO Silver Member
Join Date: Mar 2001
Location: United Kingdom
County: Tyne and Wear
No bleeding required, the system is self-bleeding.
Top is up as much as possible and run the engine with the expansion tank cap off. You will see that the tank circulates water through the system. As the water level drops add more (preferably add coolant/anti-freeze).
Squeeze the top hose to help flow bubbles through as thsi is where they gather.
Wait until the engine warms so the thermostat opens and you may get a drop in level again. Top up on last time and go for a drive. Check again after the drive and regularly for the next few days.
Don't let the engine get too hot with the expansion tank cap off or it will boil over.