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Thread: Replacing Brake Fluid

  1. #1
    Raffa
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    Aug 2012
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    Arcata, CA
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    Replacing Brake Fluid

    I want to replace my brake fluid and am wondering if the ABS requires any special tools or procedures. I have done so on my other non-ABS bikes using a vacuum device but reluctant to without checking with the forum.

    Thanks, Ralph

  2. #2
    SURVIVOR akbeemer's Avatar
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    Jul 2007
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    Flush the brakes as you would a non-ABS bike. Cycling the ABS pump is a good thing to do. You can do it with a $400 GS911, or ride on a gravel road and activate the ABS a few times. There is very little fluid in the ABS module so a few brief activations is all you need.
    Kevin Huddy
    The Outpost, Silver City, Montana

  3. #3
    Registered User drneo66's Avatar
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    You didn't mention what bike/model that you have, but if it's a GS, there are locking tabs on some of the front brake reservoirs. I use a piece of string pulled tight around the top to push in the tabs, or you buy the special tool. Other than that, akbeemer mentioned everything else.

    Video showing the string trick:

    Current: 2007 BMW R1200RT, 2013 F800GS
    Former: 1995 BMW K75S, 2009 BMW G650GS
    MOA Member #:150400, IBA#: 37558

  4. #4
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by drneo66 View Post
    but if it's a GS, there are locking tabs on some of the front brake reservoirs.
    On my K1300S I would use two blades from a pocket knife to squeeze the tabs in.

    Remove Cover.JPG
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  5. #5
    I use a (more or less) horseshoe shaped piece of wire to depress the two tabs on the reservoir.

    And by the way, as a rant, what is the purpose and who is the demented genius that decided it should take a special tool to refresh brake fluid?
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  6. #6
    Registered User drneo66's Avatar
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    Quote Originally Posted by PGlaves View Post
    And by the way, as a rant, what is the purpose and who is the demented genius that decided it should take a special tool to refresh brake fluid?
    Brake fluid theft is real Paul...
    Current: 2007 BMW R1200RT, 2013 F800GS
    Former: 1995 BMW K75S, 2009 BMW G650GS
    MOA Member #:150400, IBA#: 37558

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