bleeding ABS???

[NVS]

hi, does any one know if bleeding ABS brakes is any different to standard? i have a vs and im just about to change my front pads for the first time. can any one help me?

 

[BlackVXGTS]

No difference, but if you don't know how long since your brake fluid has been changed you should change the brake fluid at the same time.

If you are real pedantic you can change the fluid and bleed the brakes. Then take the car for a drive, apply the brakes hard enough to activate the ABS a couple of times, then come back and replace the fluid again and re-bleed the brakes again. Most times this isn't necessary.

 

[NVS]

thanks heaps.

 

[hako]

Why bleed the brakes if you dont have air in the system? - changing pads willl not introduce air into the hydraulics as long as you do it by the book. The fact that you have ABS should not matter unless you completely drained all the fluid from the system which should not happen when just changing the pads. Make sure you know just what the procedure entails before playing with brakes.

 

[motors405]

a reason for bleading the brakes is to lower the level of the resivour. This is done so that when the piston is puched into the caliper the resivour will not overflow!!! don't qoute me on this though.

 

[hako]

Common practice is to remove some fluid from the master cylinder reservoir with a syringe for just that reason rather than by bleeding. When you describe it as bleeding, it usually means 'bleeding' air from the system via the brake bleeders which can be a messy job and not usually necessary when changing pads. I'd have to agree that if you don't remove some brake fluid from the reservoir you'll end up with paint stripping brake fluid all over your bulkhead.

 

[jdd]

It is good practise to bleed the brakes when changing the pads and/or brake shoes in any car, especially one with ABS. Most types of brake fluid are hygroscopic, which means they absorb moisture. Moisture in the brake fluid is not a good thing as it substantially lowers the boiling point of the fluid, even a small amount. If the brake fluid boils while you are using the brakes, the pedal will go straight to the floor leaving you with little or no brakes.
Bleeding the brakes as it is called, removes the old fluid that has absorbed moisture over time as well as any air introduced in the system when the brake pistons were pushed back.
If the car is fitted with ABS then you should do as BlackVXGTS described above, in order to ensure the fluid sitting in the ABS controller is also flushed.

 

[NVS]

If your pads are worn there will usually be exessive heat, therefore the brake fluid boils and u end up with more condensation in your lines than brake flid. u should allways bleed your entire system every pad change.

 

[statesman_vs_s1]

I do some work for a brake and clutch specialist and we had to bleed the brakes on a AU Falcon. Unsure if they are the same as a commodore but we actually plugged in a computer unit and pulse bleed the ABS unit. Maybe worth a trip to your holden dealer. Thery may be able to help you and asking questions wont cost you dollars.

 

[shanhsv]

how much brake fluid dose the brake system take