BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques
 
Evolve Automotive
Post Reply
 
Thread Tools Search this Thread
      04-26-2011, 10:03 PM   #1
R A W L S
R A W L S
 
R A W L S's Avatar
 
Drives: 08 BMW M3
Join Date: May 2010
Location: _____________________

Posts: 163
iTrader: (0)

Garage List
2008 M3  [0.00]
Brake issues post track day

I recently spent a day at the track on my oem brake system. I went easy on them all day and they were ok. I left the track with no pad deposits or wobbles whatsoever. During the ensuing weeks of easy daily driving my brakes have started to increasingly wobble like they are accumulating pad deposits after the fact. Any ideas what's going on? Thanks!
R A W L S is offline   United_States
0
Reply With Quote
      04-26-2011, 10:25 PM   #2
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
Just a guess here. While driving on the track you actually got some brake pad transfer however it was evenly distributed. Since driving it on the street you have scraped some of the transfer off the rotors causing uneven braking and wobble.

All track driving get the rotors hot, do you probably did get some pad transfer.

Just speculation on my part.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive
skierman64 is offline   United_States
0
Reply With Quote
      04-26-2011, 10:38 PM   #3
R A W L S
R A W L S
 
R A W L S's Avatar
 
Drives: 08 BMW M3
Join Date: May 2010
Location: _____________________

Posts: 163
iTrader: (0)

Garage List
2008 M3  [0.00]
Quote:
Originally Posted by skierman64 View Post
Just a guess here. While driving on the track you actually got some brake pad transfer however it was evenly distributed. Since driving it on the street you have scraped some of the transfer off the rotors causing uneven braking and wobble.

All track driving get the rotors hot, do you probably did get some pad transfer.

Just speculation on my part.
Seems very logical and likely. If this is the case, continued street driving should eventually remove the pad transfer. Thanks for your thought.
R A W L S is offline   United_States
0
Reply With Quote
      04-26-2011, 10:47 PM   #4
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
Quote:
Originally Posted by R A W L S View Post
Seems very logical and likely. If this is the case, continued street driving should eventually remove the pad transfer. Thanks for your thought.
I agree, drive it a few more weeks and see if it gets better. When I had this happen to me, I would occasionally drag the brake for about 15 or 20 seconds with my left foot cruising down the highway to accelerate the "cleaning" of the rotors.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive
skierman64 is offline   United_States
0
Reply With Quote
      04-26-2011, 11:18 PM   #5
rzm3
Moderator
 
rzm3's Avatar
 
Drives: E92 M3
Join Date: Aug 2007
Location: USA

Posts: 4,601
iTrader: (14)

When I had stock brakes, my experience was similar to yours. Right after track the brakes would be fine, but after a while the wobble starts to get worse. It should come back to normal after a few days.
__________________
E92 M3 DCT - AiM EVO4 Data Logger / AiM SmartyCam HD / KW Competition 2-Way / OMP ARS Racing Seats / Brembo GT 365 / Pagid Yellow RS-29 / Rear Seats Delete
rzm3 is offline  
0
Reply With Quote
      04-27-2011, 04:54 AM   #6
stevespools
Private
 
Drives: 95 M3, 08 E92M3
Join Date: Jul 2008
Location: Philly area

Posts: 88
iTrader: (0)

it`s still under warranty so why not take it to the dealer? I had my front pads and rotors replaced no questions asked.
__________________
2008 E92 M3 l 6MT l Jerez Black l Fox Red | Dinan Exhaust | GTS Wheels | CF spoiler, splitters,mirror caps | gloss black grills and gills
stevespools is offline  
0
Reply With Quote
      04-27-2011, 06:10 AM   #7
LiM3y
Major
 
LiM3y's Avatar
 
Drives: 2008 E90 M3
Join Date: Jun 2009
Location: CT

Posts: 1,228
iTrader: (3)

I found doing bedding drills helped smooth out the wobble. I can't say if it made it faster because I don't have the "control" data of not doing this.
__________________
LiM3y is offline   United Kingdom
0
Reply With Quote
      04-27-2011, 08:29 AM   #8
noxredna
Captain
 
noxredna's Avatar
 
Drives: 2008 BMW M3 Coupe, 2012 BMW M5
Join Date: Sep 2008
Location: Philadelphia & Singapore

Posts: 669
iTrader: (0)

It should go away after a few days of daily driving.

If not bring it to the dealership, my service adviser replaced both my front rotors after I came back from a time attack event (even though I had HP Plus). You have no idea how much I miss BMW Warranty especially if you have a good service adviser.
noxredna is offline  
0
Reply With Quote
      04-27-2011, 08:41 AM   #9
ring007
Major
 
ring007's Avatar
 
Drives: '10 GT3RS & '13 Cayenne GTS
Join Date: Nov 2008
Location: ///Iowa

Posts: 1,031
iTrader: (13)

I to have suffered from pad deposit issues both on oem and brembo brakes after track days. Fortunately for you its a super easy fix. Remove each wheel and wipe down both sides of the entire rotor surface with a rag moistened with windex or similar glass cleaner. Works like a charm with little effort and completely takes care of the problem. I know sounds too simple, right? I was doubtful as well before I tried it. But it really does work.
ring007 is offline  
0
Reply With Quote
Post 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 05:21 AM.




m3post
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