when you think you have filled it up properly then think again take the small tube of the expansion tank and blow down it this will release the valve and you will see your water drop then fill it up hope this helps
There is one bleed screw on the heater matrix hose and one on the coolant rail which is on the passenger's side of the engine.
Also loosen the c clip on the jiggle valve and pull it off the inlet manifold, then blow down it using a tube or a tight seal with your fingers - this will budge the jiggler if it is jammed . Careful though as you might get a gob full of coolant when you do.
There's an 8 mm bolt in the steel pipe which runs along the back of the engine then turns 90 degrees and goes over the bell housing! It's in the bit over the bell housing!