Stock Problems/Issues Discussions 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).

R56 coolant ate thermostat housing...

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Jun 1, 2017 | 06:10 PM

dlrotter

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R56 coolant ate thermostat housing...

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...

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