BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Sun, Jul-08-2012, 08:38:42 AM   #1
ColoM3
Registered User
 
Join Date: Jun 2009
Posts: 61
Reputation: 0 ColoM3 is on a distinguished road

United States




Default Vibration when braking (60mph+) Update

Hi, have a slight problem here that just happened recently. At above 60mph when I brake (light or hard) my steering wheel vibrates/shakes. Also above 60mph the car feels "lumpy" like the the front end it not tight w/o braking. I have tried these fixes so far:

Replaced left rim (because it was vibrating w/o braking), vibrating stopped when not braking.
Replaced both front rotors(today). I'm using Stoptech pads 10k).
FCAB's were replaced 10k ago, along with Koni shocks.

About 2 months ago, the right brakes were stuck, causing the the car to driff to the right and the rotor was very hot. I let the car sat and it was fine after. Could my calipers be bad.

Do I need to "bed in" the new rotors?

Thanks in advance for any advice.

Last edited by ColoM3; Thu, Jul-12-2012 at 08:58:58 PM.
Jump to top ColoM3 is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Sun, Jul-08-2012, 09:36:17 AM   #2
Taunto
Registered User
 
Taunto's Avatar
 
Join Date: Feb 2011
Posts: 114
Reputation: 0 Taunto is on a distinguished road
Location: Calgary

Canada




Default Re: Vibration when braking (60mph+)

if the brake caliper was sticking before.. letting it sit isnt going to cure the problem. If only it worked like that and things would fix them selves.

Your caliper is most likely still sticking. You need to remove the calipers and try to compress them back with a small C-Clamp or big pair of Channel Locks usual works to. I Like to stick the brake pad in against the caliper when compressing so I dont damage the caliper piston but thats just me. they need to move most of the way in.. dont move em them a couple inches and say its good. Ive seen many brake calipers push in about 2 inches then stop...

If they dont move u need a re-build kit or new brake caliper(s).
__________________
* Technology is the Replacement for Displacement *
Jump to top Taunto is offline   Reply With Quote
Old Thu, Jul-12-2012, 09:10:04 PM   #3
ColoM3
Registered User
 
Join Date: Jun 2009
Posts: 61
Reputation: 0 ColoM3 is on a distinguished road

United States




Default Re: Vibration when braking (60mph+)

Update:
So, I fixed the "lumpy" and partial shudder issues. It was cupped front tires and warped front rotors. The shudder issue is still there at high speed braking just not as bad. So, I was driving today and pulled the e-brake, the shudder was very apparent. I'm thinking warped rear rotors. Could this be possible? I've driven the car a couple times and didn't realized the e-brake was on.
Jump to top ColoM3 is offline   Reply With Quote
Old Thu, Jul-12-2012, 09:22:52 PM   #4
lmtfi
Registered User
 
lmtfi's Avatar
 
Join Date: May 2005
Posts: 7,802
Reputation: 0 lmtfi is a jewel in the rough

United States




Default Re: Vibration when braking (60mph+)

Quote:
Originally Posted by ColoM3 View Post
Update:
So, I fixed the "lumpy" and partial shudder issues. It was cupped front tires and warped front rotors. The shudder issue is still there at high speed braking just not as bad. So, I was driving today and pulled the e-brake, the shudder was very apparent. I'm thinking warped rear rotors. Could this be possible? I've driven the car a couple times and didn't realized the e-brake was on.

Our rotors don't warp. You might have had a pad imprint from your earlier issue - but imprints wear off.
__________________
Jump to top lmtfi is offline   Reply With Quote
Old Thu, Jul-12-2012, 09:27:31 PM   #5
ColoM3
Registered User
 
Join Date: Jun 2009
Posts: 61
Reputation: 0 ColoM3 is on a distinguished road

United States




Default Re: Vibration when braking (60mph+)

I forgot to mention that I had Stoptech slotted rotors.
Jump to top ColoM3 is offline   Reply With Quote
Old Fri, Jul-13-2012, 12:04:37 AM   #6
Jonzny
Registered User
 
Jonzny's Avatar
 
Join Date: Oct 2011
Posts: 1,831
In the garage:
Reputation: 0 Jonzny is on a distinguished road

United States




Default Re: Vibration when braking (60mph+)

Quote:
Originally Posted by lmtfi View Post
Our rotors don't warp. You might have had a pad imprint from your earlier issue - but imprints wear off.
?

What makes them different?
__________________

Catless Headers | 8.2k Redline | ST Coilovers | Powerflex RTABS & FCABS
Jump to top Jonzny is offline   Reply With Quote
Old Fri, Jul-13-2012, 12:35:18 AM   #7
akashyap
Registered User
 
akashyap's Avatar
 
Join Date: Oct 2009
Age: 28
Posts: 775
Reputation: 0 akashyap is on a distinguished road
Location: Austin

India




Default Re: Vibration when braking (60mph+)

Quote:
Originally Posted by ColoM3 View Post
I forgot to mention that I had Stoptech slotted rotors.
I have these rotors too and I get massive pad deposits idk why.....
__________________
M3
CDV Delete, Auto Solutions 30%, SGT Coilovers, TopSpeed Exhaust, APEX EC-7

X5M
Stock
Jump to top akashyap is offline   Reply With Quote
Old Fri, Jul-13-2012, 03:34:15 PM   #8
Ilove2dubb
Registered User
 
Ilove2dubb's Avatar
 
Join Date: Nov 2011
Posts: 431
Reputation: 0 Ilove2dubb is on a distinguished road
Location: Montreal

Canada




Default Re: Vibration when braking (60mph+)

Sounds like a warped rotor...
Jump to top Ilove2dubb is offline   Reply With Quote
Old Sun, Jul-15-2012, 03:04:58 AM   #9
nikzbord
Registered User
 
Join Date: Mar 2007
Posts: 825
Reputation: 0 nikzbord is on a distinguished road





Default Re: Vibration when braking (60mph+)

There is NO such thing as a warped rotor.
Jump to top nikzbord is offline   Reply With Quote
Old Sun, Jul-15-2012, 03:14:47 AM   #10
lmtfi
Registered User
 
lmtfi's Avatar
 
Join Date: May 2005
Posts: 7,802
Reputation: 0 lmtfi is a jewel in the rough

United States




Default Re: Vibration when braking (60mph+)

Quote:
Originally Posted by Jonzny View Post
?

What makes them different?

http://www.zeckhausen.com/avoiding_brake_judder.htm


http://www.centricparts.com/files/Ce...ake%20Disc.pdf
__________________
Jump to top lmtfi is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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. The time now is 09:44:26 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing Vibration when braking (60mph+) in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)