Not sure that it's a common leak but I do recall seeing writeups where people have replaced the connectors (and the whole heater core). I'd keep the heater, if you ever have a humid track day it's nice to use the heat to clear the windshield. That and when you have heat blowing you know the cooling system is working, lol. __________________ ~Dave~ 98 328ti Morea Grun slicktop 11 128i space gray slicktop 13 JGC WK2 Deep Cherry Search | RealOEM |