Hey people
Just wanted to say thanks for all the helpful comments.
Anyway I took the GTI to a guy called Dan Taber, in Bexleyheath, he was a VAG specialist for years, then started up his own business. I found out about him via the “good guys†section on the forum. Just to add he was brilliant, he stopped what he was doing, had a listen to my engine, checked some stuff over and all for free. He knew what he was talking about and was really friendly, highly recommended by me! Anyway he said he highly doubted I had any problems, and that all sounded normal, but to come back if the noise got worse and he would do a more extensive check. So I drove away a very happy GTI owner.