E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-12-2012, 03:30 PM   #1
NicB.
Registered User
 
Join Date: Oct 2006
Location: Houston, TX
Posts: 1,256
My Ride: 2000 BMW 328i
Cracking Sound When Braking

Hi Guys,

Have an unusual noise developing in my car. So for the past couple years, I have had this cracking noise from the front that evidences at random points in time, usually when pulling into a parking space (braking and turning the wheel). Over the past few years, most of my front suspension/steering components have been replaced (sway bar end links, FCB's, springs/shocks, tires, brakes, control arms).

Last night I backed straight into a parking space and when I applied the brakes I heard a sharp and noticeable CRACK. I pulled forward, stopped, CRACK. Weird. I pulled forward a little more, nothing. Went in reverse again, crack. Backed up a little more, nothing. Pulled forward, crack. The cycle continued.

Obviously, something is loading/unloading and causing the noise, I'm just not sure what it could be. This has stumped me for a long time and really irritates me.

Thoughts?

Thanks!
NicB.
__________________
NicB. is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 05-12-2012, 03:56 PM   #2
Ronnied18
Registered User
 
Join Date: Apr 2012
Location: Southern California
Posts: 147
My Ride: 2002 BMW 330ci
Quote:
Originally Posted by NicB. View Post
Hi Guys,

Have an unusual noise developing in my car. So for the past couple years, I have had this cracking noise from the front that evidences at random points in time, usually when pulling into a parking space (braking and turning the wheel). Over the past few years, most of my front suspension/steering components have been replaced (sway bar end links, FCB's, springs/shocks, tires, brakes, control arms).

Last night I backed straight into a parking space and when I applied the brakes I heard a sharp and noticeable CRACK. I pulled forward, stopped, CRACK. Weird. I pulled forward a little more, nothing. Went in reverse again, crack. Backed up a little more, nothing. Pulled forward, crack. The cycle continued.

Obviously, something is loading/unloading and causing the noise, I'm just not sure what it could be. This has stumped me for a long time and really irritates me.

Thoughts?

Thanks!
NicB.
The easiest thing I think is to post a video of the sound. The word "crack" to someone could sound different to somebody else. But I would recommend to check the clips thats secure the pads, control arm bushings or sway bar endlinks...Those are the only things that pop in my head that could make a "cracking" noise..
__________________
Super Deluxe Special Edition 330ci / Quad Turbocharged /
Autozone Shift Knob / Stickers for extra Aerodynamics
Ronnied18 is offline   Reply With Quote
Old 05-12-2012, 04:03 PM   #3
dmax
Registered User
 
dmax's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 22,809
My Ride: '99 328i 1.04646 mu
you did fcabs...make sure they're still okay...but I first thought of balljoint myself...check CAs. You can squeeze each ball joint with monster channel locks and try to get play there...off the ground, of course.

End links also have ball joint...and checking the brakes is a great idea too...check wheel lugs, and make sure you have both caliper carrier bolts in too.

Cracking is usually not a good kind of sound! But, the good news is that I bet it's visible!

Good luck...hth.

Doug
__________________


Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840

A recent set

dmax on the radio every Wednesday 7-9 p.m. NYC time. Call in! (661) 449-9340 watsonnwatson.com
dmax is offline   Reply With Quote
Old 08-29-2012, 09:39 AM   #4
Custom3
Registered User
 
Join Date: Sep 2005
Location: Dirty Jersey
Posts: 5,428
My Ride: HellRot 330CI
I have the same exact problem.... haven't had time to really look into it. Yesterday I looked real quick and noticed the sway bar end links rubber boot on the bottom of both end links were ripped. Im not sure if that would cause the cracking noise when braking. If all the grease came out of the end link then probably that would cause the noise? Ill have to look more into this when I have time.
Custom3 is offline   Reply With Quote
Old 08-29-2012, 10:21 AM   #5
2003silver330i
Registered User
 
Join Date: Feb 2012
Location: N. Las Vegas, NV
Posts: 1,585
My Ride: 03 BMW 330i
I guess I was thinking of something else like a loose brake pad shifting from momentum.
2003silver330i is offline   Reply With Quote
Old 04-13-2013, 05:14 PM   #6
chris98891
Registered User
 
Join Date: Mar 2007
Location: greenville, sc
Posts: 1,718
My Ride: '01 325i
Send a message via AIM to chris98891
Quote:
Originally Posted by 2003silver330i View Post
I guess I was thinking of something else like a loose brake pad shifting from momentum.
bump...I think I'm facing something similar. No sound before my brake job, but I replaced rotors and pads and suddenly I get a weird "pop" sound when I shift momentum. Pulled wheels off quickly today and everything checked out visually, all the nuts and bolts were properly torqued still, pads sitting right up against rotor, and I couldn't see any space between the carrier and pad, but it wouldn't take much to make a pop like that I'd imagine.
__________________
-Chris




chris98891 is offline   Reply With Quote
Old 04-13-2013, 06:35 PM   #7
rdogthenut
Registered User
 
Join Date: Jul 2012
Location: Athens GA
Posts: 38
My Ride: 2003 330i ZHP
I had similar symptoms and it was a shifting brake pad.
rdogthenut is offline   Reply With Quote
Old 04-13-2013, 10:38 PM   #8
chris98891
Registered User
 
Join Date: Mar 2007
Location: greenville, sc
Posts: 1,718
My Ride: '01 325i
Send a message via AIM to chris98891
how did you fix it?
__________________
-Chris




chris98891 is offline   Reply With Quote
Old 04-15-2013, 07:18 AM   #9
rdogthenut
Registered User
 
Join Date: Jul 2012
Location: Athens GA
Posts: 38
My Ride: 2003 330i ZHP
I just disassembled, cleaned, and reinstalled with a healthy application of anti-squeal compound. Problem solved for me.
rdogthenut is offline   Reply With Quote
Old 04-15-2013, 06:31 PM   #10
chris98891
Registered User
 
Join Date: Mar 2007
Location: greenville, sc
Posts: 1,718
My Ride: '01 325i
Send a message via AIM to chris98891
Quote:
Originally Posted by rdogthenut View Post
I just disassembled, cleaned, and reinstalled with a healthy application of anti-squeal compound. Problem solved for me.
Awesome, thanks for the reply. I'll do that!
__________________
-Chris




chris98891 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON





All times are GMT -5. The time now is 11:30 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use