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Thread: Brake pedal constantly going soft

  1. #51
    BMWHaus Guru
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    Jul 2013
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    RE: Brake pedal constantly going soft

    Two weeks on and the pedal is still OK. Happy with that. Not all the mats are in yet though.
    Current Garage:
    e36 Convertible, e63 M6,F82 M4, R53 Cooper S, F57 JCW, R53 JCW GP1, Porsche Panamera, Porsche 991 C4S

  2. #52
    BMWHaus Contributor
    Join Date
    Nov 2014
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    293

    RE: Brake pedal constantly going soft

    What was replaced or fixed on the brake system this time ?

  3. #53
    BMWHaus Guru
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    RE: Brake pedal constantly going soft

    The issue from the start seems to have been caused by a faulty DSC (ABS) unit. The DSC unit is used for cruise control, cornering brake control, stability control, hill start assist & ABS, possibly more. So it has the ability to brake individual wheels or axles itself when it needs to o so to fulfil any of the functions outlined above.

    The last time I drove the car prior to the fix I had the rear brakes lock up solid. So I think the issue all along was that the DSC unit was constantly applying the rear brakes unnecessarily & causing the brake fluid to boil over time. The cause of the soft brake pedal.
    Current Garage:
    e36 Convertible, e63 M6,F82 M4, R53 Cooper S, F57 JCW, R53 JCW GP1, Porsche Panamera, Porsche 991 C4S

  4. #54
    BMWHaus Contributor
    Join Date
    Nov 2014
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    293

    RE: Brake pedal constantly going soft

    Happy days, hope you can now get to enjoy what your car was really made for, hooning around with smiles from ear to ear.

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