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      11-09-2012, 05:49 PM   #16
3er BMW
Drives: E92 325i
Join Date: Nov 2006
Location: Denmark

Posts: 91
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Originally Posted by gpb View Post
Does water propogate through the fluid evenly? i.e. is testing it in one spot (such as the master cylinder resevoir) valid for the fluid condition in all the calipers as well?
As mentioned brake fluid is hygroscopic absorbing moisture from the air
thus lowering the boiling point.
And yes it will eventually cause brake failure due to pockets of steam in the brake lines etc.
This can happen e.g. going down a mountain with long periods of brake
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