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Brake fluid leak from caliper

Originally Posted by JARblue Turning off VDC does not turn off ABLS, which is responsible for applying the brakes to the rear wheels when it detects wheel slip. Since you're

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Old 09-09-2016, 06:26 AM   #31 (permalink)
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Originally Posted by JARblue View Post
Turning off VDC does not turn off ABLS, which is responsible for applying the brakes to the rear wheels when it detects wheel slip. Since you're only experiencing this on the rear brakes, I would guess ABLS is the culprit. I think you have to remove the Stop Lamp fuse to turn it off.


What is ABLS? I know what ABS is, but not ABLS?


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Old 09-09-2016, 09:20 AM   #32 (permalink)
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I believe ABLS is part of the ABS (hence the reason you have to remove the Stop Lamp to turn it off completely).

ABLS stands for Active Brake Limited Slip. It is a feature that pulsates the rear brakes when wheel slip is detected.
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Old 05-24-2017, 07:56 AM   #33 (permalink)
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I had this happen at Shenandoah.

If the bleeder screw was overtightened, is that essentially gouging/damaging the aluminum caliper and therefore, you cannot simply replace the bleeder screw, but to replace the whole caliper?
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Old 05-24-2017, 05:27 PM   #34 (permalink)
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Originally Posted by street2soul View Post
I had this happen at Shenandoah.

If the bleeder screw was overtightened, is that essentially gouging/damaging the aluminum caliper and therefore, you cannot simply replace the bleeder screw, but to replace the whole caliper?
If you're lucky a good machine shop could insert a heli-coil into it. I had that done and it worked. But if that fails, then yes, new caliper for you.
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Old 05-24-2017, 09:46 PM   #35 (permalink)
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I must be getting quicker and braking later as my last track event I too had a little seepage and I can guarantee you mine are not overtightened. I think it is as earlier poster said the seat is just a bit too close to the piston so under high temp it distorts a little and weeps.

I never felt a loss of braking action and only did it after some hard 20 min sessions and smoking brakes but I'm not really worried about it.
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Old 05-25-2017, 01:12 PM   #36 (permalink)
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I told the dealer and they said that I had bled the brakes wrong. Couldn't have POSSIBLY been the caliper fault.
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Old 05-25-2017, 05:16 PM   #37 (permalink)
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Originally Posted by Jhill View Post
I never felt a loss of braking action and only did it after some hard 20 min sessions and smoking brakes but I'm not really worried about it.
Any easy way to tell this is happening is when you have a dead pedal until you push fluid back into the caliper. Once you get full pressure back, everything is fine. I've not had this happen to me in quite a while, but I also have taught myself to be better at braking.
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