steel brakes sticking?

blowitup · 01-19-2021, 09:51 AM

Ive noticed for the past few days as i go to brake and let off the pedal the car continues to apply brake pressure as if i was still on the pedal. Not on an incline or anything like that, just normal stopping and i can feel the car still braking when im off of the pedal. Reservoir is at normal range, pads and rotors have normal wear for 40k miles (no track days).. Has anyone experienced this "sticking" feel to their brakes? I cant seem to find another member with the same issue yet. Could this mean its time for new pads and rotors? IM gonna get a measurment of the rotors later this evening to make sure they havent worn below 28.5mm.. Pads have life left as well..

blowitup · 01-21-2021, 10:19 AM

bump, someone? anyone?

shaolinx · 01-22-2021, 09:09 AM

I am at 50k with all stock and running fine. I doubt replacing pads or rotors would help but it wouldnt hurt. Could be a problem with your calipers / brake fluid that you might want to look into.

Disc Brake Rotor Failure Symptoms
Pulsating
Grinding
Squeaking
Glazing
Hot spots
A noticeable lip on the rotors outer edge

Brake Pad Set Failure Symptoms
Pulsating
Grinding
Squeeking
Rotor Glazing
Rotor Hot spots
A noticeable lip on the rotors outer edge.

Buckeye///M · 01-22-2021, 10:52 AM

You mention that the brake fluid level is okay, but not when the last time was the fluid was flushed. If it hasn’t been recent, I would start with a flush first.

drroc · 01-22-2021, 12:22 PM

You might want to take a look at the dust boots. If the dust boots are damaged, there is a possibility that the piston seals inside the caliper are shot causing the pistons to stick.

blowitup · 02-02-2021, 09:31 AM

*UPDATE

fluid was bled
pads changed
all seals and dust boots checked (perfect)
found that passenger caliper bled extremely slow.. removed the caliper and throroughly cleaned and bled it..

still was sticking, but more now...

we checked abs/dsc unit and found fluid wasnt making it to it... performed a reset on the abs unit and now the brakes are woorking as they should.

nioh_lbbm2 · 02-02-2021, 01:08 PM

Quote:

Originally Posted by blowitup

*UPDATE

fluid was bled
pads changed
all seals and dust boots checked (perfect)
found that passenger caliper bled extremely slow.. removed the caliper and throroughly cleaned and bled it..

still was sticking, but more now...

we checked abs/dsc unit and found fluid wasnt making it to it... performed a reset on the abs unit and now the brakes are woorking as they should.

How do you do an ABS reset?

N1rve · 02-02-2021, 04:51 PM

Quote:

Originally Posted by blowitup

*UPDATE

fluid was bled
pads changed
all seals and dust boots checked (perfect)
found that passenger caliper bled extremely slow.. removed the caliper and throroughly cleaned and bled it..

still was sticking, but more now...

we checked abs/dsc unit and found fluid wasnt making it to it... performed a reset on the abs unit and now the brakes are woorking as they should.

Who is "We" is this the dealer?

01-19-2021, 09:51 AM	#1
blowitup New Member 2 Rep 21 Posts Drives: f80 m3 6mt, 335is dct Join Date: Mar 2018 Location: new orleans, La iTrader: (0)	steel brakes sticking? Ive noticed for the past few days as i go to brake and let off the pedal the car continues to apply brake pressure as if i was still on the pedal. Not on an incline or anything like that, just normal stopping and i can feel the car still braking when im off of the pedal. Reservoir is at normal range, pads and rotors have normal wear for 40k miles (no track days).. Has anyone experienced this "sticking" feel to their brakes? I cant seem to find another member with the same issue yet. Could this mean its time for new pads and rotors? IM gonna get a measurment of the rotors later this evening to make sure they havent worn below 28.5mm.. Pads have life left as well..
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01-21-2021, 10:19 AM	#2
blowitup New Member 2 Rep 21 Posts Drives: f80 m3 6mt, 335is dct Join Date: Mar 2018 Location: new orleans, La iTrader: (0)	bump, someone? anyone?
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01-22-2021, 09:09 AM	#3
shaolinx Enlisted Member 22 Rep 46 Posts Drives: BMW M3 F80 Join Date: Sep 2016 Location: TX iTrader: (0)	I am at 50k with all stock and running fine. I doubt replacing pads or rotors would help but it wouldnt hurt. Could be a problem with your calipers / brake fluid that you might want to look into. Disc Brake Rotor Failure Symptoms Pulsating Grinding Squeaking Glazing Hot spots A noticeable lip on the rotors outer edge Brake Pad Set Failure Symptoms Pulsating Grinding Squeeking Rotor Glazing Rotor Hot spots A noticeable lip on the rotors outer edge.
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01-22-2021, 10:52 AM	#4
Buckeye///M Private 53 Rep 72 Posts Drives: 2017 M4 ZCP Join Date: Jul 2019 Location: NashVegas iTrader: (0)	You mention that the brake fluid level is okay, but not when the last time was the fluid was flushed. If it hasn’t been recent, I would start with a flush first.
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01-22-2021, 12:22 PM	#5
drroc Lieutenant 420 Rep 518 Posts Drives: 2015 M3 - 6MT Join Date: Dec 2016 Location: San Jose iTrader: (1)	You might want to take a look at the dust boots. If the dust boots are damaged, there is a possibility that the piston seals inside the caliper are shot causing the pistons to stick.
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02-02-2021, 09:31 AM	#6
blowitup New Member 2 Rep 21 Posts Drives: f80 m3 6mt, 335is dct Join Date: Mar 2018 Location: new orleans, La iTrader: (0)	*UPDATE fluid was bled pads changed all seals and dust boots checked (perfect) found that passenger caliper bled extremely slow.. removed the caliper and throroughly cleaned and bled it.. still was sticking, but more now... we checked abs/dsc unit and found fluid wasnt making it to it... performed a reset on the abs unit and now the brakes are woorking as they should.
	Appreciate 0 Quote