Hi Discool,
I can understand your impatience with new forum members who don't look to see if their problem is common. However,
this issue of a hot fuel filter was news to me as a relatively new Disco 2 owner, and is not a common issue such as faulty door locks or oil ni injector looms.
I did take your advice and do a search, and even then, the information was not easy to find - there was one post and hot fuel filter did not appear in the heading!
Maybe I have misunderstood your intentions, but you seem to have posted similar "do a search" posts recently. In this case, it came across to me as terse and unhelpful, and I'm sure you are not that!
Anyway, for those interested in the original question, here is a link to another post on the forum which answers the question.
http://www.landyzone.co.uk/lz/f8/discovery-td5-fuel-filter-49261.html
Cheers!