I need some forum luck, Brakes

[Sean d]

I have a mechanic mate coming tomorrow to try and sort my brakes issue, it has been my biggest problem throughout this build, like a t**t I let the system bleed dry when I dropped the rear end and have bled the life out of it with no success so tomorrow is a massive day for me as its ready to insure and MOT, its only the brakes that are holding me back.
I haven't tried bleeding them with a laptop yet and @Faheem has kindly offered to come all the way to Grimsby to do this for me but I want to exhaust everything else first

 

[Lee]

I have a mechanic mate coming tomorrow to try and sort my brakes issue, it has been my biggest problem throughout this build, like a t**t I let the system bleed dry when I dropped the rear end and have bled the life out of it with no success so tomorrow is a massive day for me as its ready to insure and MOT, its only the brakes that are holding me back.
I haven't tried bleeding them with a laptop yet and @Faheem has kindly offered to come all the way to Grimsby to do this for me but I want to exhaust everything else first

You might have air in the ABS unit. I've used INPA to open both solenoids and bleed in the past.

I'm assuming you've bleed them in order aswell?

 

[Sean d]

You might have air in the ABS unit. I've used INPA to open both solenoids and bleed in the past.

I'm assuming you've bleed them in order aswell?

I am assuming the ABS unit is the problem, I have pressure and gravity bled them in the right order on numerous occasions mate

 

[Lee]

Gravity bled ?

Do you have access to any type of pressure bleeder ?

 

[Sean d]

Gravity bled ?

Do you have access to any type of pressure bleeder ?

Yes mate, read my above post

 

[Lee]

Yes mate, read my above post

I’m with ya. It rarely happens only had it happen to me once before.

 

[Sean d]

I’m with ya. It rarely happens only had it happen to me once before.

Really pisses me of and keeps me awake at night, I thought it would be an easy repair but it got the better of me, the ABS lights are on but the BMW scanner will not read the ABS

 

[Lee]

Really pisses me of and keeps me awake at night, I thought it would be an easy repair but it got the better of me, the ABS lights are on but the BMW scanner will not read the ABS

That is annoying. Specially when you know it’s somthing simple. Should get yourself the bmw software and stick it on an old laptop. Bit clunky to use but worth it in the end.

 

[Sean d]

That is annoying. Specially when you know it’s somthing simple. Should get yourself the bmw software and stick it on an old laptop. Bit clunky to use but worth it in the end.

I have the BMW scanner software on my laptop but it won't read the ABS, does all the other stuff

 

[t-tony]

When I get our Gary's old laptop I have the Delphi system to load and I'm going to get the BMW software on it too.

Tony.

 

[Sean d]

When I get our Gary's old laptop I have the Delphi system to load and I'm going to get the BMW software on it too.

Tony.

For some reason the 97 Z3 wont read on USB on ABS

 

[Lee]

I have the BMW scanner software on my laptop but it won't read the ABS, does all the other stuff

Could the abs module be toast?

 

[Faheem]

I used "BMW DIS" to communicate with the ABS module on my zed Sean. I can't remember where but I've read that there can be issues using software such as INPA Pa Soft / BMW scanner to communicate with the ABS systems on our older zeds. Let us know if your mechanic is able to sort it for you, if not, I'd be happy to come up to try and help.

 

[t-tony]

Am right in thinking you can bleed up a good pedal which falls to the floor with the motor running under constant pressure Sean?

Tony.

 

[mrscalex]

If it’s something that needs the intervention of software, eg to run the pump then your mate is unlikely to crack it without bringing alternative diagnostics kit with him?

Hopefully it’s something that needs a purely mechanical fix so you can put it to bed there and then.

I have to say as I love my laptop tools I would be royally peed off if I couldn’t communicate with the ABS on an older Z3. It must just be on the earliest of cars as later pre-facelifts are fine.

If your mate can’t help then @Faheem s offer sounds like a generous one and the next step. Hopefully he can leave you with a working DIS installation on your own laptop too if that’s the tool you need. It’s part of the INPA suite but not something I’ve used before. If you have to replace the module then you’ll also need NCS to code it from the same suite.

Real bummer this one Sean. Will definitely be bookmarking the fix in case I ever come across it.

 

[Mnbrennan]

I heave read that on the older models you can only read the ABS module via an RS232 serial port