Ur quattro rr

[steverrquattro]

If you've been working on the brakes, I'd pull out all the ABS sensors and check there's nothing stuck to the end of them. They're magnetic and if any bits of rust or debris stick to the end it will cause triggering problems.

I'd already had the rear ABS sensors out Andy and one had some sh*te stuck to it. Will do the fronts tomorrow.

The pedal feels good when the engine is turned off, but when running, the pedal goes slowly to the floor with a vibration and if pushed quickly, the brake warning light will emit for an instant.

I've pressure bled again and put a litre through each rear caliper this evening and still no good!

[AndyP]

If you've been working on the brakes, I'd pull out all the ABS sensors and check there's nothing stuck to the end of them. They're magnetic and if any bits of rust or debris stick to the end it will cause triggering problems.

[mac2226]

Hi Andy Discs are fine I think but would need double check again if there blue as this could be a sign of warped discs and I've not driven it yet so can't say Andy sorry,only been told by Steve brown but once I bleed it again and test it I will know but yes I had a abs sensor fault on my s2 aby similar problem how Steve told me just have to double check everything thanks

[AndyP]

Does the vibration feel like the ABS triggering or a warped disc?

[mac2226]

Any help from ur Quattro owners been bleeding the brakes manually from back to front longest away to shortest away it has big reds on front got the bubbles out till it was clear and clean brake fluid coming out the brake pedal feels good after bleeding but it vibrates once you apply brakes while driving it and exclamation mark comes on dash and there's no leaks under car what's causing the vibrations abs sensors are fine