[fredo328]

I've pretty much prepped myself with all the DIYs and related threads to do this job blind-folded. Just as I was ready to move ahead with the job a couple of my buddies (one is a car dude-rebuilt a 65 Fastback, the other works in a garage) told me to wait until the thing started giving me problems before replacing it. Reasons given are: you'll have leaks that will be tough to find and fix, another was my timing belt will be thrown off. Coming from these two buds of mine was enough to give me pause and ask you guys what you think. Problems with leaks or timing belt after doing the job?
I have a 98 328 and have no idea whether the impeller is plastic or metal, no overheating problems and have 70,000 miles on it. I've read here that BMW changed over to metal in 98 so who knows.Thanks