Agreed alex although bleeding was not meant to be a cure, just a step towards diagnosis, plus bleeding the air allows you to check the level and condition of the fluid
i was 99% sure it was a pas pump fault but considering its an expensive part, 99% isn't good enough and bleeding is free and easy
anyhoo a happy ending all round
Yeah I know mate and process of elimination is always best.
Hopefully warranty will pick up the tab.