So even with the system running you had some nasty fluid in there? I really need to do this project. I only get a smooth ride with about 300lbs in the trunk. And my pump is leaking bad. I think I may replace the forward lines. Or have them made for me (another thread gives specifications on this). And also replace as much in the back as I can. This car is a very rough ride.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car