They bleed very easily, if there's no problem with car, and you fill the system very slowly with both bleed screws open, shutting each as the coolant starts to flows out, radiator will be first
start the engine cap off, it may go down a bit, fill it Back to max
Let it idle until the thermostate opens and theres hot water in the radiator
Switch it off and let it cool
Put the cap back on, start the engine and run up to temperature
While hot and pressurised loosen the bleed screw on the heater pipe, some air will come out, then some bubbles, wait until the coolant is flowing out and tighten back up,bits saved to do this while it's hot as the volume is small
When cold check the level, don't take the radiator cap off,, while the coolant is hot