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Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).
I removed the thermostat housing and it looks like it was eaten from the inside out. Created a lot of black sludge in the fluid. What caused this? I had been using Zerex G-05 coolant...