Brake caliper sticking ?

Averdi · 08-20-2015, 09:13 AM

Quote:

Originally Posted by mweisdorfer

Quote:

Originally Posted by Averdi

Hey guys. I still have a shake from 40-55mph. It gets more noticeable the harder I drive/brake with the car. I brought it to a BMW tech and he said he's 90% sure it's a sticking brake caliper. I replaced control arms, thrust arms , wheels and tires checked, road force balanced twice , and a new alignment. The wheel also bears to the right a little bit. My question is does it sound like a sticking caliper? The one wheel is harder to spin and doesn't spin as smooth when on s lift, also it was a decent amount hotter after checking the temps after a hard drive. He said I should replaced the caliper, any other suggestions? Is there a way to service it or does it have to be replaced? Also will 335is calipers for my e92 335i?

I would replace the guide pins on both sides. Make sure you lube up the pins heavily with a good synthetic break grease. Below is a link on Amazon to the very best grease I have ever found.

http://www.amazon.com/CRC-05361-Sila...EKRF61SKE9NSPH

-50 to 3000 degrees. Hard to go wrong there. I would suggest filling the boot about 1/2 way and putting some on the new pins as well.

If you really, want to go cheap, you could put some sand paper or emery cloth to the old pins and shine them up and the reinsert them in with the grease.

Does the rebuilt caliper come with new pins ?

TheBigYahi · 08-20-2015, 09:31 AM

Watch out for the slide pins if you get a rebuilt caliper/mounting bracket combo. On one of the rebuilds I bought they put their "rustproofing" on the slide pins which obviously made them way too thick and were binding out of the box. I cleaned and reused the ones that came off my old ones, they were in good shape after 110k miles in the snowbelt.

Joey911 · 08-22-2015, 09:24 PM

Quote:

Originally Posted by Averdi

Hey guys. I still have a shake from 40-55mph. It gets more noticeable the harder I drive/brake with the car. I brought it to a BMW tech and he said he's 90% sure it's a sticking brake caliper. I replaced control arms, thrust arms , wheels and tires checked, road force balanced twice , and a new alignment. The wheel also bears to the right a little bit. My question is does it sound like a sticking caliper? The one wheel is harder to spin and doesn't spin as smooth when on s lift, also it was a decent amount hotter after checking the temps after a hard drive. He said I should replaced the caliper, any other suggestions? Is there a way to service it or does it have to be replaced? Also will 335is calipers for my e92 335i?

Hello there again,

It turns out that my caliper is not sticking, it's my control arm/thrust rod/tension strut busing is no good on both side, the toe is changing during driving... thus it pulls sometimes left sometimes right depends on road surface. but a constant pull the the left on highway.

Pretty similar to sticky caliper until I measure the rotor temperature, all normal

Hope you fix your problem with those new calipers! Mine is still squealing

Averdi · 08-22-2015, 09:58 PM

Quote:

Originally Posted by Joey911

Quote:

Originally Posted by Averdi

Hey guys. I still have a shake from 40-55mph. It gets more noticeable the harder I drive/brake with the car. I brought it to a BMW tech and he said he's 90% sure it's a sticking brake caliper. I replaced control arms, thrust arms , wheels and tires checked, road force balanced twice , and a new alignment. The wheel also bears to the right a little bit. My question is does it sound like a sticking caliper? The one wheel is harder to spin and doesn't spin as smooth when on s lift, also it was a decent amount hotter after checking the temps after a hard drive. He said I should replaced the caliper, any other suggestions? Is there a way to service it or does it have to be replaced? Also will 335is calipers for my e92 335i?

Hello there again,

It turns out that my caliper is not sticking, it's my control arm/thrust rod/tension strut busing is no good on both side, the toe is changing during driving... thus it pulls sometimes left sometimes right depends on road surface. but a constant pull the the left on highway.

Pretty similar to sticky caliper until I measure the rotor temperature, all normal

Hope you fix your problem with those new calipers! Mine is still squealing

I wish you luck buddy! My problem was actually the calipers thank god.

techwhiz · 08-25-2015, 09:34 AM

Hi, I have a set of calipers if anyone is interested.
They are fine. I took them off my car to upgrade to M-Performance brakes.

$150 + shipping takes the pair.

Joey911 · 09-05-2015, 06:28 PM

Quote:

Originally Posted by Averdi

Quote:

Originally Posted by Joey911

Quote:

Originally Posted by Averdi

Hey guys. I still have a shake from 40-55mph. It gets more noticeable the harder I drive/brake with the car. I brought it to a BMW tech and he said he's 90% sure it's a sticking brake caliper. I replaced control arms, thrust arms , wheels and tires checked, road force balanced twice , and a new alignment. The wheel also bears to the right a little bit. My question is does it sound like a sticking caliper? The one wheel is harder to spin and doesn't spin as smooth when on s lift, also it was a decent amount hotter after checking the temps after a hard drive. He said I should replaced the caliper, any other suggestions? Is there a way to service it or does it have to be replaced? Also will 335is calipers for my e92 335i?

Hello there again,

It turns out that my caliper is not sticking, it's my control arm/thrust rod/tension strut busing is no good on both side, the toe is changing during driving... thus it pulls sometimes left sometimes right depends on road surface. but a constant pull the the left on highway.

Pretty similar to sticky caliper until I measure the rotor temperature, all normal

Hope you fix your problem with those new calipers! Mine is still squealing

I wish you luck buddy! My problem was actually the calipers thank god.

Okay. After I install the control arm blah blah blah......

I still have brake problem

Joey911 · 09-05-2015, 06:29 PM

Quote:

Originally Posted by techwhiz

Hi, I have a set of calipers if anyone is interested.
They are fine. I took them off my car to upgrade to M-Performance brakes.

$150 + shipping takes the pair.

Off what year? What model?

BMWSource · 08-12-2019, 07:49 PM

Quote:

Originally Posted by robthewrench

Sounds like a sticking caliper. Could also be the early signs of a wheel bearing failure. A rebuilt caliper is fine. You can sometimes find a rebuild kit and rebuild them yourself, but I don't have that kind of time....

You will probably go through quite a bit of brake fluid during the flushing process since you are starting with an empty caliper. You'll need more than the typical flush.

I'm having a similar issue with my E90
330Xi either I have a sticking brake caliber or is it the front wheel bearing. My car makes a very loud noise with the windows up at 60-80 km/h

Savedamanualse90 · 12-04-2019, 03:04 PM

I’m having the same problem, while replacing my rotors thinking they were warped I was wrong. With the new rotors I spun them and as they were turning only a part of the rotors surface touched the pads. I will also be completing a break fluid flush. while the car is driving 10-15mph I hear a intermittent rubbing sound similar to the rotors rubbing on the pads during repair. I also noticed the front bearing plates which rest on to the rotors were very slightly bent and the bearings rotation was very ruff. Potentially the problem/noise can be from a sticky caliper and front worn front bearing.

08-20-2015, 09:31 AM	#24
TheBigYahi Private First Class 38 Rep 164 Posts Drives: 2006 330xi 6MT Join Date: Jun 2014 Location: Syracuse, NY iTrader: (0)	Watch out for the slide pins if you get a rebuilt caliper/mounting bracket combo. On one of the rebuilds I bought they put their "rustproofing" on the slide pins which obviously made them way too thick and were binding out of the box. I cleaned and reused the ones that came off my old ones, they were in good shape after 110k miles in the snowbelt.
	Appreciate 0 Quote

08-25-2015, 09:34 AM	#27
techwhiz Colonel 453 Rep 2,973 Posts Drives: e90 335i Sedan - Arctic Join Date: Feb 2012 Location: Bay Area, Ca iTrader: (4)	Hi, I have a set of calipers if anyone is interested. They are fine. I took them off my car to upgrade to M-Performance brakes. $150 + shipping takes the pair. __________________ Arctic Metallic\CF Splitters, Spoiler, Mirror Covers\LED Tails\LSD\Tinted\Coded\Apex Square SM10-19"\LED Angel Eyes\Gloss Black Grill\Integrated V1 & Galaxy Tab\M-Performance Brakes\Cobb Tuned\xHP Flash\Resonator Removed and -> is your friend.
	Appreciate 0 Quote

12-04-2019, 03:04 PM	#31
Savedamanualse90 Private First Class 15 Rep 114 Posts Drives: 6spd n52 Join Date: Mar 2019 Location: Cebu iTrader: (0)	I’m having the same problem, while replacing my rotors thinking they were warped I was wrong. With the new rotors I spun them and as they were turning only a part of the rotors surface touched the pads. I will also be completing a break fluid flush. while the car is driving 10-15mph I hear a intermittent rubbing sound similar to the rotors rubbing on the pads during repair. I also noticed the front bearing plates which rest on to the rotors were very slightly bent and the bearings rotation was very ruff. Potentially the problem/noise can be from a sticky caliper and front worn front bearing.
	Appreciate 0 Quote