ABS Flush and Bleed

[IanC]

I've yesterday for the first time myself sort of changed the fluids in my 2006 GSA (servos and ABS). I think that makes it ABS3?

Anyway, followed the instructions commonly available (service_abs3.pdf), and all seemed to be fine with the wheel circuits. But as I understand it, from the lever/pedal, you now only bleed the 'control circuits' - the two nipples nearest the ABS connector? But I couldn't really get any flow through these - pulling the lever/pedal halfway as instructed seemed to produce very little in both cases.

In frustration I eventually did the rear with an Eezibleed (under pressure) as I thought the low level of the reservoir might be the problem, which worked great, but i don't feel I should have had to! And couldn't do the front like that as i didn't have the right cap.

So am I doing something wrong? Any suggestions? Anyway much to my surprise it passed the GS-911 bleed test - I'm just not convinced I've changed all the fluid in the control circuits.

 

[jacro]

Hey mate,
My haynes manual says you should not attempt this as you need special diagnostics and machine to do so. Maybe im wrong but be careful.
Cheers

 

[sidestand]

I thought a GS-911 is a special diagnostics machine

 

[IanC]

Thanks jacro, but I think sidestand's correct

I wonder if they've updated Haynes to include GS-911?

 

[jacro]

Think its with integral brakes. My mistake.

 

[IanC]

Think I have ABS with "integral brakes" (though not sure exactly what that means!).

I've just ordered a spare front reservoir cap from Sherlock's (£9.50) and am going to drill it so I can try my Eezibleed. It seemed to make the rear control circuit dead easy but didn't include a cap that fitted the front.

 

[Kremmen]

I thought a GS-911 is a special diagnostics machine

It now has front & rear bleed test facility .... from the last Beta version if my memory serves me right

 

[IanC]

Yes, I've "passed" the bleed tests on the GS-911 - it's just the control circuit bleed routine that I'm a little confused about.

 

[DrogoNevets]

integral brakes mean, when you pull the front brake lever, it applies 100% front and a certain (think 30%) rear brake all at once

but when you apply rear brake, it just applies rear