ive decided to book it in at grippatank for a full service which includes diagnostics,fixing any leaks,new glow plug and burner kit etc.....im not convinced that i have solved the leaking fuel pipe issue tbh.....
itll be good for the van to give it a good blast on a long drive(to stop the DPF getting clogged)as i only do small stop/start journeys most of the time as i only use it for work....