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no brake pedal Audi 100

imported_muscle750 May 3, 2006

  1. My Mother in laws car last night been driven when the brake pedal went to the floor with the pressure light flashing, the pedal is still going to the floor either with the engine running or not, how do i discover wether the accumulators shot or is it the seals in the master cylinder, there are no signs of any leaks anywhere and the fliud levels havent dropped. If the seals go in the master cylinder will the pressure warninglight still flash?
  2. scotty33

    scotty33 Member

    I don't know the 100 cars, but sounds like the system on the coupes, so have a look here:http://www.20v.org/brakprob.htm

    Where they refer to pentosin, it's a US brand of hydraulic mineral oil.
  3. audi5e

    audi5e Member

    what year is your 100?

    The 1992 - 1994 used a normal vacuum assisted booster, the previous generation C3 shape used the power steering pump to get brake assist.

    Your problem sounds more like the seals have gone in the master cylinder. The assistance failing would not cause the pedal to go all the way down to the floor.
  4. alecmoir

    alecmoir New Member

    bleed nipples on calipers shot???

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