thanks tony I found the leaking coolant it was the plastic elbow with the bleeder valve on it,
it was cracked on the section that go's into the hose to the firewall.
the other section of the elbow looks like it is fitted on to the aluminium pipe witch runs along the back of the firewall
Hi I have recently blocked of my egr valve, yesterday I seen that a little bit of coolant was leaking not sure were from but I turned the heater on later and it is blowing cold air anyone have any ideas