Hi. I have a 2005 s line 2ltr tdi 140. The suspension has become abit crashy over bumps, pot holes,man holes and un even surfaces. Has quite a thud from the suspension. It's only started to do it this last 10,000 miles or so. It comes and goes though. It seems to be fine when roads are wet. Takes all of the above quite smoothly and quietly. I know s line suspension is quite harsh anyway, but this seems worse. I'm assuming something is worn and needs replaced. Maybe something needs greased due to the fact it's fine with wet roads.
Any help with what might need replaced and rough costs?