Success.After 3 days of jumping up and down while tearing my hair out I followed Crashers advice which was backed up by A8 Tech and replaced the 'o' ring on the 'T' piece. The car finally showed a willingness to start although not under its own steam (I had to tow it with a mates landrover) She is now running like a dream and a big thanks to both you guys for your input I was at my wits end again many thanks Davy