I'm the original owner of my 96 Z3 with 52,000 miles and I'm thinking of replacing the cooling hoses. I was looking at the realoem diagrams and obviously the heater hoses seem to go under the intake manifold. Has anybody tried replacing these hoses (and which ones (please use the hose number from realoem))? I did some searches and saw somebody said that the upper intake manifold will need to be removed. Anyway, any suggestions as to which hoses need to be replaced and how to I get to them? By the way, my water pump was already replaced last year. Thanks GaryNJ