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Brake Problem, master cyl??

Discussion in 'A3/S3 Forum (8L Chassis)' started by Pat, Feb 21, 2010.

  1. Pat
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    Pat Member

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    [Feb 21, 2010]
    Took my s3 out today.. Most of the time the brakes are fine BUT every so often the pedal goes nearly down to the floor.. You pump it again and the brakes are back..

    I`m thinking master cylinder has failed, could i be right???
    #1
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  3. S3SYD
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    S3SYD Member

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    [Feb 21, 2010]
    try bleeding the system first...:icon_thumright:
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  4. Pat
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    Pat Member

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    [Feb 23, 2010]
    I got a replacement cylinder today... BUT the old one has 2 sensors on where the new one from GSF has only one..
    #3
  5. golf
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    golf ***** rent boy VCDS Map User

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    [Feb 23, 2010]
    Did you try bleeding the system first? When was the brake fluid last changed?
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