E32 hydraulic leak at ABS

[unity]

I know this is a common spot for leaking, but I washed the area well several times to locate leak and its not the usual leak. Which in searches always talked about lines under the master cylinder, etc. My leak appear to be coming from the ABS block itself at the top. Has anyone rebuilt the ABS pump? Seems like something I should not really venture into.

Side note: My rear driver EDC/LAD shock is still leaking just a little, nothing like it was before. And now I have this leak and I am back to nearly a quart of fluid on the ground per day!

[shogun]

Cannot remember of a case that there was a leak. BBA Reman seems to sell reman units, if needed https://us-shop.bba-reman.com/
We only replaced once a ASC+T unit on a 750, for that we needed a crawfoot socket wrench. Maybe you first try to retighten the connections.

[unity]

My bad, its not the ABS module. Its the brake booster system. Located right under the master cylinder, is that correct?

[shogun]

The brake booster and master are bolted together, and the booster has a weep hole, usually there it leaks, master6 has a repair service for that https://www.bimmerforums.com/forum/m...300752-master6
https://photos.google.com/share/AF1Q...NpZDRQVHlGal9n

So it drops probably from the brake booster down onto the ASC+T /ABS

[unity]

Hmmm, okay. Not brake booster then. I looked up some pics, it has to be the ASC+T unit. But the pics of the unit I see do not seem to match what I have, then again its really hard to see down there. Lines do enter from top with at least one capped off (not used). It seems to be leaking where two of the body parts mate together. That is, the lines that enter the top are dry so are any lines on the master cylinder. So nothing is leaking from that point up. I washed it up again. I will have to make it a day project next week time permitting. Seems like a bit of work to get into there.


edit: Finally found a great pic. The red arrow points to where mine leaks. That is the spot that gets wet with fluid right after cleaning. None of the lines above are leaking, they still are very clean and dry. The master cylinder would be further above this and also clean/dry.
Screen Shot 2017-05-08 at 6.47.49 PM.png

[shogun]

did you meanwhile solve that problem?

[Hum]

Hey Unity, I'd found leaking spot on my same as your picture. I've just wonder how you fix that leaking spot?

[vr117]

i just found that mine is leaking in the same spot tonight how does this get fixed sorry for reviving such an old thread

[unity]

I never did resolve the leak and the vehicle was sold a couple years ago.

[vr117]

I never did resolve the leak and the vehicle was sold a couple years ago.

Thanks for the reply I know this was from a couple of years ago i cleaned mine scuffed it up and put a thick layer of JB-WELD Marine weld on it gonna hope for the best

[ross1]

Thanks for the reply I know this was from a couple of years ago i cleaned mine scuffed it up and put a thick layer of JB-WELD Marine weld on it gonna hope for the best

Against the hydraulic pressure in the braking system? Not a chance.

[vr117]

Against the hydraulic pressure in the braking system? Not a chance.

you may be correct the stuff i used the marine weld is supposed to be rated at 5000+ psi so im hoping for the best if it don't work at least i tried!!! I'm gonna give it a go this evening after its been a full 24 hours I'll update then