DII ABS brake bleeding without Testbook

[fstshrk]

I don't get this at all. I have worked on and raced Porsches and BMWs with factory ABS systems. I have never heard of a need to recycle the ABS pump for bleeding the brakes. I just do it the old fashioned way or when I am in a hurry or alone, I use a pressure bleeder.

When the ABS BMWs first came out, there was a myth that came out that was along the lines of "You need the factory computer to bleed the brakes on an ABS equipped BMW" but over time this was proven to be false (actually hogwash but who is counting ;-).

An ABS system is a pass through device. You can bleed the brakes and if you feel real strongly about it, after doing a bleeding, you can always take the car out, get the pump to activate by trying to lock the brakes and then come back and bleed again.

Again, I am not a Land Rover expert, but the ABS systems are basically identical in almost all the cars out there.

 

[rovercanus]

I don't get this at all. I have worked on and raced Porsches and BMWs with factory ABS systems. I have never heard of a need to recycle the ABS pump for bleeding the brakes. I just do it the old fashioned way or when I am in a hurry or alone, I use a pressure bleeder.

When the ABS BMWs first came out, there was a myth that came out that was along the lines of "You need the factory computer to bleed the brakes on an ABS equipped BMW" but over time this was proven to be false (actually hogwash but who is counting ;-).

An ABS system is a pass through device. You can bleed the brakes and if you feel real strongly about it, after doing a bleeding, you can always take the car out, get the pump to activate by trying to lock the brakes and then come back and bleed again.

Again, I am not a Land Rover expert, but the ABS systems are basically identical in almost all the cars out there.

Which is kind of what a few of us have been saying, but, if there is a hard way people will not only try it for themselves, but advocate it as the only fix to everyone else.

 

[hafaday]

i actually tried it to see if it worked................... it was a no go.

hey, some one had to try it.

 

[Mongo]

Which is kind of what a few of us have been saying, but, if there is a hard way people will not only try it for themselves, but advocate it as the only fix to everyone else.

you are so right

 

[The Fourth Amigo]

The Hawkeye scantool is well worth the money when compared to the ABS Amigo. It displays all the live data on the ECU, SLABS and BCU. It can actuate the condenser fan, fuel pump, windows, door locks, all the solenoid valves and pump in the modulator, all three washer pumps, wipers, lights, shift interlock, ign. interlock and lots more. That's pretty handy. Why spend $200.00 just to read and clear codes on the SLABS only. I know $600.00 is a good amount of money, but to buy the ABS Amigo felt like a waste and a few trips to the dealer wouldn't be cheap either.

 

[rovercanus]

The Hawkeye scantool is well worth the money when compared to the ABS Amigo. It displays all the live data on the ECU, SLABS and BCU. It can actuate the condenser fan, fuel pump, windows, door locks, all the solenoid valves and pump in the modulator, all three washer pumps, wipers, lights, shift interlock, ign. interlock and lots more. That's pretty handy. Why spend $200.00 just to read and clear codes on the SLABS only. I know $600.00 is a good amount of money, but to buy the ABS Amigo felt like a waste and a few trips to the dealer wouldn't be cheap either.

What ever.

 

[The Fourth Amigo]

I just want to be cool.

 

[rovercanus]

I just want to be cool.

Unpossible, you're Canadian.

 

[David Despain]

is DAP the only place to get one of these in the north america?
have you had any problems with it or still pretty happy with it?
anyone have any experience with using a hawkeye on a P38A?

 

[JohnB]

Just use a motive power bleeder. I found a used master cylinder cap and made my own cap for the power bleeder.

Worked perfect but I was just doing a fluid refresh. I never have anyone around to help me bleed brakes thats why I bought a Motive bleeder.

I'm sure that you could power up the ABS pump but it just seems overkill to me.

 

[Fatherslot]

2 spade connectors and a switch.. plug it in the abs relay socket. you now can activate the abs pump.. makes a wonderful one man bleeding system as well. Run it once a month or so for 30 sec this way and the three bastards with silly hats keep away.

 

[mnfeo2]

Just use a motive power bleeder. I found a used master cylinder cap and made my own cap for the power bleeder.

Worked perfect but I was just doing a fluid refresh. I never have anyone around to help me bleed brakes thats why I bought a Motive bleeder.

I'm sure that you could power up the ABS pump but it just seems overkill to me.

How many psi do you use? Anything over 5 psi and my reservior starts to leak form were it attaches to the master cylinder.

I guessing this is not normal.

 

[JohnB]

How many psi do you use? Anything over 5 psi and my reservior starts to leak form were it attaches to the master cylinder.

I guessing this is not normal.

12psi is as comfy as I want to go. No leaks on mine but I'm always expecting that. I always cover the master with a big shop rag in case of an explosion. That shit can ruin your paint. I've been using this motive unit on all my cars BMW VW and have never had an explosion. My brother won't touch it with a 10 foot pole.

 

[BackInA88]

I also have a Motive Power Bleeder.
Mine has the universal lid with the chain.
I have used it on many systems with plastic reserviors.
I just run the chain under the MC and tighten it just enough to not leak the pressure. I like doing it this way instead of the special cap as I feel it helps to hold the plastic reservior on the MC.


Steve

 

[mastercamper]

What about using a vacuum pump thing? Will it bother the ABS?

 

[WHB]

Another way to do it, is make up 2 leads with flat spade connectors on each end, connect a switch in the middle, remove the ABS relay and "bridge" the 2 terminals for the switched side of the relay, then flick the switch when you want the pump to run to push as much fluid out as you want / need. If you make the "fly leads" long enough, you can even lay by each wheel and open the nipple / flick the switch all by yourself, no need for any help.

Just wanted to confirm which relay should be bridged - is it Pin 15 (return pump relay) to Pin 3 (earth) on C0506?

 

[ptschram]

12psi is as comfy as I want to go. No leaks on mine but I'm always expecting that. I always cover the master with a big shop rag in case of an explosion. That shit can ruin your paint. I've been using this motive unit on all my cars BMW VW and have never had an explosion. My brother won't touch it with a 10 foot pole.

I have a client who was an engineer for a local fabricating/machine shop. They made the bleeder system that's used at the local GM truck plant. They use 150 PSI to bleed them! He did say though that when he went out to watch it in use, he was quite shocked to see the reservoir expand as much as it did.

I never use less than 15 PSI with my motive.

 

[DarylJ]

What about using a vacuum pump thing? Will it bother the ABS?

I've had nothing but bad luck with vacuum bleeding brake systems. Sometimes it works OK, sometimes it's just completely painful, and sometimes it makes things worse (clutch slave cylinders on Porsches do NOT take well to vacuum bleeding - that's the original reason I got a Motive).

It has never gotten me anywhere close to the kind of solid pedal feel you get with pressure bleeding.