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      10-24-2012, 04:57 PM   #5
John 070
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Drives: 335i cpe
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It is necessary as a function of time, because brake fluid is hygroscopic. BMW would not include it every 2 yrs. under free maintenance if it weren't necessary (they have their own interest in mind, not yours). Nothing like causing brake components to rust from the inside out, by avoiding the replacement of the fluid. It's not BMW alone, it's any car.
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