Ive decided that the soggy carpets issue is possibly going to become an on going and expensive problem if I try to tackle it myself.

What I'd like to know is how likely am I to get any joy if I try to get the 2nd hand car dealer who sold the car to me (last friday), to pay for the repairs? Is there any legal stuff I can use if they refuse to fix it?

If they claim its an old leak which they've fixed do I have any grounds for requesting they pay to have the carpets and sound deadening removed and dried out?