2001 audi s3 amk

so i have had a loud knocking noise coming from the front of the car when ever i have to move my car on full lock going forwards or in reverse. so today whilst fitting new springs and new cv boot i decided to leave the drop links off whilst going for a short trip round my area and the noise had gone. refit the drop links and the noise is back. my mate has same noise on his and has fitten new drop links and i have fitted to mine new arb bushes. Has anyone ever come accross this on there car???