Ok I have found whats causing the knock when I wobble the drivers wheel left and right (passenger side is similar aswell) there is a knock which is clearly coming from the rod (not sure if this is called a tie end rod or something ?) basically after an afternoon of trying to get the nut of that holds it, it just spins and spins. I peeled the gaitor bit back a bit as I turned the nut it was clearly spining and the the bolt part, the nut just won't move obviously as it got nothing to work again to come off. How the hell :) does this come off now ?
Also as the fault has been found how do you change the rod. I thought it was just a case of undoing the bolt, taking that bit off the caliper carrier housing I think its called and I then followed the whole rod back which goes into a gaitor on the steering rack. I just wanted to know two things. How do I first rmeove this nut and secondly, change the part ?
I be super grateful of advice and help on this as I need to get the car working by monday :-s ... so I'm getting up super early to get down to a parts shop for the parts and will get cracking asap. I hope I can do the job as I've never done this type of job before. At least its not the steering rack is what I thought straight away lol.