Hi there I have been wondering about this for a few years but why is it that Defenders hold their value so well ? £3k will just about buy a 15 year old one!

Hi I am new on here but have, hopefully, a simple problem with my 96 300Tdi Discovery I have a gurgling noise coming from behind my dash which usually occurs when gently accelerating. A friend of mine thinks there is air in the water reservoir. Is there a simple fix to get the air out? Any...