I'm getting a clonking noise when I turn the car (A3 TDI/2000) at slow speed i.e. under 20mph. It's a clonk and happens twice when turning the wheel from centre to full lock either way. With the bonnet open and turning the wheel, you can visibly see the passenger-side top-shock mount judder very slightly and when you hold the top mount, you can feel it clonking/juddering. I suspected it was the top bush/bearing or a something do do with the spring, but on inspection everything looks fine - i.e. shock is not broken and seated correctly. I greased the bush as well - however the problem is still there. help please!!!