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post #12 of (permalink) Old 13th April 2014
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Re: Bleeding a scenic II with ABS

Sorry to hear that it's still causing problems.

As I mentioned, I can't see how air could have got to the ABS valve removing the caliper as you did.
If the brake fluid reservoir emptied when you were bleeding this could get air into the system.

Another possibility is that the seals in the master cylinder have failed. This quite often shows up after bleeding brakes when the pedal has been pushed right down to the floor.
This is because in normal use the pedal only moves a short way, so the seals are only moving a short way inside the master cylinder. When you push the pedal right down to the floor the seals will be moving into a part of the master cylinder bore that isn't normally used so could have corrosion on the walls, this corrosion damages the seals and allows the brake fluid to pass them.

This is what causes the soft pedal going to the floor after brake bleeding.
It's best to use a pressure bleeder or if using the pedal method only push it down to about half way.

Let us know how you get on.


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