Hello Everyone!
Given realoem's lack of a proper diagram for the Z3 M52TU cooling system, as well as my considerable ongoing confusion finding the right parts for my Z3 cooling system overhaul, I grabbed my Crayons, some realoem printouts and some ebay listings and created the diagram below. It now makes sense to me - I hope someone else might find it useful. I have double-checked all the part numbers to insure accuracy. I have included both .jpg and .pdf versions of the drawing. Thanks to @Murray Wall for his ongoing assistance!

Given realoem's lack of a proper diagram for the Z3 M52TU cooling system, as well as my considerable ongoing confusion finding the right parts for my Z3 cooling system overhaul, I grabbed my Crayons, some realoem printouts and some ebay listings and created the diagram below. It now makes sense to me - I hope someone else might find it useful. I have double-checked all the part numbers to insure accuracy. I have included both .jpg and .pdf versions of the drawing. Thanks to @Murray Wall for his ongoing assistance!

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