Brake fluid leak from caliper

Kamillio · 09-09-2016, 07:26 AM

Quote:

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 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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JARblue · 09-09-2016, 10:20 AM

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.

street2soul · 05-24-2017, 08:56 AM

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?

EZT · 05-24-2017, 06:27 PM

Quote:

Originally Posted by street2soul

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.

Jhill · 05-24-2017, 10:46 PM

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.

osbornsm · 05-25-2017, 02:12 PM

I told the dealer and they said that I had bled the brakes wrong. Couldn't have POSSIBLY been the caliper fault.

Halfkiddio · 05-25-2017, 06:16 PM

Quote:

Originally Posted by Jhill

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.

09-09-2016, 10:20 AM	#32 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	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. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

05-24-2017, 10:46 PM	#35 (permalink)
Jhill Track Member Join Date: Mar 2016 Location: San jose Posts: 854 Drives: 2013 370z sport Rep Power: 3384	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. Rusty likes this.

05-25-2017, 02:12 PM	#36 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 424	I told the dealer and they said that I had bled the brakes wrong. Couldn't have POSSIBLY been the caliper fault. __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

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05-24-2017, 08:56 AM	#33 (permalink)
street2soul Enthusiast Member Join Date: Aug 2010 Location: Texas Posts: 284 Drives: 13 Nismo Rep Power: 3370	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?