Water pump is serious yes, but alot of the posts on here I read mention they swap it out as routine, haven't searched the forum for symptoms of a faulty water pump so not sure if they just 'go' no warning, or if they make any sounds, but yeah you are right it may lead to overheating, I got 35k on mine, and today the temp out here is 27.5 c, summers hit 40C! so I am concerned too, but like I said don't really wanna get rid of the car on the basis of a what if this happens and what if that happens?

sorry I can't help ya on warranties etc, I bought private, and the only thing I did miss was the low coolant level in the expansion tank, they guy had his own garage that services his road laying trucks etc and hr agreed to let me get in under a pit and check anything out i wanted...thing is the guy was honest was clueless about cars and said if anything does need changin you the computer tells you! brake pad sensors played up at the time he had them sorted....ok c ya