By the way, I just bought this car 1994 740i. There was this noise coming out of(what I finally found out what it was) the electric/addition waterpump. I noticed the hose that was supose to be coming out the front of it (the pump) and attaching to the firewall leading into the cabin, was missing so, I contented to spray some wd40 into where the propeller is (which finally stopes the noie): anyway, after attaching the hose there still wasn't any water being pumped into or threw the pump. I know it's suppose to help with the interior heating. Not sure though. Just wanted to know how to fix this problem with water flow etc or ? I heard alot of guys disscunect it all together. Any help is appreciated. Thanks.