Larry, well aware of what can happen and already planning to flush lots! Hence my note above. I will attempt to make the system as new as possible and replace every part within reason. I am betting it will take the better part of a day.

But sounds like the TXV will be a huge pain. Is that thing inside the cabin? Is it something maybe I can leave or are they prone to fail?

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