[JOHN35]

a8 Tech, you were right with your diagnosis

My car has been into Audi and put onto the diagnosis machine.

They have told me that the pipes have air leaks which probably relate to the problems I am having, I have bought new pipes and hope to get these fitted next week sometime. After the pipes have been replaced Audi have said to come back in and put the car back onto the diagnosis machine.

Will keep you posted.

John