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  1. #1
    Member
    Join Date
    Apr 2019
    Location
    WI.
    Posts
    6
    Spyder Garage
    0

    Default Leaking Master Cylinder

    Does anyone else have brake fluid dripping from the master cylinder? I think it's coming from the cap/diaphragm. I wiped it off thinking maybe they spilled when they filled it, but it's wet again and leaves a small puddle on the garage floor. I just dropped it off at the dealer, so we'll see what they find. Everyone might want to check theirs. I've had it a week with 220miles.

  2. #2
    Active Member
    Join Date
    Dec 2018
    Location
    New Jersey
    Posts
    38
    Spyder Garage
    1

    Default

    I also had same problem...when I removed cap to check, could see the rubber diaphragm was pinched ...dealer installed new diaphragm and all is good.

  3. #3
    Very Active Member Chupaca's Avatar
    Join Date
    Oct 2012
    Location
    San Diego, CA.
    Posts
    30,475
    Spyder Garage
    1

    Default Little checking.....

    Well they will check it out but many caps have breathers and if installed wrong will leak out...
    Gene and Ilana De Laney
    Mt. Helix, California

    ​2012 RS sm5

  4. #4
    Very Active Member AY4B's Avatar
    Join Date
    Aug 2014
    Location
    Greenville Tx
    Posts
    2,157
    Spyder Garage
    1

    Default

    My rear caliper is leaking. I had a brake fault a couple of weeks ago with low fluid. The resivour was very low and the rubber membrane was sucked to the bottom. I noticed fluid under the caliper. I took it to the dealer and they will replace the caliper on Thursday.
    2017 F3 Limited

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