So I found out what the leak was. I took the X to a shop that I've been to before to have them check for the leak. It's a free service so I figured if nothing else they could help me diagnose and I can make the repairs. Came away with the oil filter housing leaking, the oil cooler/lines leaking, the power steering pump/hoses leaking and a crack in the expansion tank. All of which I had suspected but wanted confirmation. Now I wil be replacing all of those and probably some other problem areas while I have everything apart. I figured I would do the vanos line while I was in there and the radiator hoses but what else? Anything else I should do while I'm that deep? So one weekend I'll be fixing the leaks and another the suspension. Busy time ahead of me!

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2003 BMW X5 3.0i