E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > my brakes "chirp"...



Reply
 
Thread Tools Search this Thread
      11-29-2012, 01:39 PM   #1
N0OS3
Colonel
N0OS3's Avatar
United_States
41
Rep
2,220
Posts

 
Drives: E90
Join Date: Feb 2010
Location: Oak Harbor, WA

iTrader: (5)

my brakes "chirp"...

A while back, i installed 335i brakes on my 325 and stainless steel brake lines. I bled the brakes (properly as far as i know) and the install was pretty straight forward... seems like in the mornings or if the brakes are not warmed up, they 'chirp' once when i hit the brakes. Depending on how long i drive, it goes away on it's own.. seems like a temp related issue.

it doesn't affect performance as far as i can tell (believe me, they've been put to the test a LOT lately). There's no leaks. Brake pad wear is normal (no excessive abrasion against the rotor).

Anyone have an idea what this could be? Perhaps bleed the brakes once again - maybe there's an air bubble trapped in one of the lines?
*I figured, if there was an air bubble(s) i would have a lot of brake fade to begin with but they seem to work like a champ.
Appreciate 0
      12-01-2012, 03:28 AM   #2
lonestar22
Ground Clearance?
lonestar22's Avatar
United_States
31
Rep
1,427
Posts

 
Drives: 535i
Join Date: Jul 2009
Location: DFW

iTrader: (-1)

its normal for brakes to squeel a little when they are cold. i wouldnt worry about it. also, you may check and see if the sensor is at the point where it is touching the rotor. they may be far from due for replacement. but the sensor sticks out pretty far and can come into contact with the rotor and make noise well before your car is due for pads. if it is, you can shave it a little with sandpaper. this is a method that the dealership uses if someone is complaining about chirping brakes
__________________

Slammed E90. One of the First. Stay Fitted
Appreciate 0
      12-01-2012, 03:50 AM   #3
#Tee
Chronic trollololer level 60
#Tee's Avatar
77
Rep
4,882
Posts

 
Drives: yes
Join Date: Oct 2011
Location: Socal

iTrader: (1)

Use anti seize on the pad where theres friction onto the caliper. So basically on all the sides/backing where it touches the pistons. This works everytime
__________________

#TeamStretchNpoke IG:Tee212

custom cf rear side diffuser add ons for sale (e9x,M3s,f3x) pm me for details. thread http://www.e90post.com/forums/showthread.php?t=962442
Appreciate 0
      12-01-2012, 12:25 PM   #4
N0OS3
Colonel
N0OS3's Avatar
United_States
41
Rep
2,220
Posts

 
Drives: E90
Join Date: Feb 2010
Location: Oak Harbor, WA

iTrader: (5)

I changed the brakes less than 2,000 miles ago, along with the sensors. It's not a squeal though, it is in fact a "Chirp" (like a bird chirping) when i tap the brakes... when i installed the pads, i put antiseize/antisqueal on all the clip points and all on the back of the pads where they make contact with the caliper... i checked that recently too, the antiseize seems to still be in good contact with the material.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 11:33 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST