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Black Substance in brake master cylinder?

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  • Black Substance in brake master cylinder?


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Answer #1 | 19/12 2013 22:26
black stuff maybe rust. Brake fluid can absorb water over time. I usually bleed out the old fluid when I do a brake job.
Answer #2 | 19/12 2013 22:35
The brake fluid is breaking down,some kind of carbon,maybe the fluid is made in mexico.

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