[JetFuelOnly]

It's inevitable that someone chimes in and says, "The bleed isn't complete until you've bled the ABS module!" But is this true? Check out my full brake bleed how-to where we get to discussing the need for ABS bleed and how to do it.

 

[worf]

The WSM only specifies ABS bleed if the ABS pump is replaced.

So… no. As per any headline that ends in a question mark.

 

[offroader52]

I’ve flushed my brakes three times now for track days. Don’t bleed the system completely. (I did this when replacing the brake lines to stainless) If you drain the system completely you will need to do the ABS bleed which means you will need a system like the MaxiCOM. If the brake pedal goes to the floor after bleeding, this means you need to do the ABS bleed, and you might have to do it a few times. It’s a two person job. If you just bleed the brakes like normal or use a pump, it flushes just fine. The Motive power brake bleeder works really well for this. Got it on Amazon cheap and it came with the correct cap for the 718.

 

[JetFuelOnly]

The WSM only specifies ABS bleed if the ABS pump is replaced.

So… no. As per any headline that ends in a question mark.

Thanks, and that agrees with the general idea specified in other manuals. Do you happen to have a screen shot of that from the WSM to share?

I’ve flushed my brakes three times now for track days. Don’t bleed the system completely. (I did this when replacing the brake lines to stainless) If you drain the system completely you will need to do the ABS bleed which means you will need a system like the MaxiCOM. If the brake pedal goes to the floor after bleeding, this means you need to do the ABS bleed, and you might have to do it a few times. It’s a two person job. If you just bleed the brakes like normal or use a pump, it flushes just fine. The Motive power brake bleeder works really well for this. Got it on Amazon cheap and it came with the correct cap for the 718.

I was looking on Amazon so I could have a link in the video description, but couldn’t find a kit that came with the 1100 adapter. So I just linked the bleeder and adapter separately.

 

[Scrounger]

Does anyone have rusty bleed nipples?? 🤪

 

[PeC]

Does anyone have rusty bleed nipples?? 🤪

Redheads ?

 

[worf]

Do you happen to have a screen shot of that from the WSM to share?

This from the 991.1 WSM (which is what I have on my iPad while drinking mornin‘ coffee.)

The sections in the .2 manuals and the .2 hardware are the same (but those sections are on my real computer.)

 

[InigoMontoya]

Great thread. Yes, if you pass enough fluid during a normal flush, you will refresh the fluid in the ABS unit as long as it hasn't been replaced. If you replace it and introduce air into the unit, THEN you need to bleed it. Same goes for master cylinder etc. Just bleed normally. If you do that you will keep fluid fresh throughout the whole system.

 

[monkeyofspice]

Great video quality, your YouTube production effort is excellent. I have the same motive bleeder system. I found it to work better running it dry and topping off the reservoir with fluid instead. Then you don’t have clean old fluid up after the bleed. Also mine came with a slight air leak at the brass coupler. So I removed it shortening my hose. I found much easier to use with the shorten hose.

 

[m77spider]

Thanks a ton for this video, this is something I'd been mulling over for a while.

I notice that your icarsoft gives this message in the video:

Please connect a bleeding device with admission pressure at least 2 bar (29pai)

I'm not sure if "pai" is a translation error originating from PIWIS, or if it's a reference to psia (absolute)... which I'm not certain would make sense for this case anyways. Until someone hopefully corrects me, I'll assume we're looking for 2bar of "gage" pressure for the ABS bleed.

In the video you mention that motive says not to exceed 15psi, and elsewhere I see someone using an Ate power bleeder on a cayman with the gauge reading 2bar.

Would the conclusion then be that if we're going to be bleeding the ABS we should be using a more expensive bleeding system, rather than pushing the Motive to 200% of the instructed limit?

 

[Aronis]

Absolutely love the comment (No prescribed sequence).

I have bled brakes on many cars over the years. I have never bled the ABS modules. The tech manual for my M5 says nothing about bleeding the ABS module for routine bleeding. If the ABS module is replaced it has a process for that.

I like to hear arguments about the sequence. "start in the rear, no start in the front.....yada yada yada"