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 > Suspension | Brakes | Chassis
Lux Angel Eyes
Post Reply
Thread Tools Search this Thread
      01-09-2012, 08:33 PM   #1

Drives: e92 M3 Alpine
Join Date: Feb 2008
Location: Minneapolis

iTrader: (3)

Brake Problem - Help

So I noticed today that my rear rotors have rust on the inside part (near hub) for about an inch, the rest is clean like normal. Obviously the brake pad is not being applied evenly to the surface of the rotor. Interestingly, this is on both rear brakes.

I do track the car and switch out pads, but these are the stock pads and have been in for months. The track pads don't seem to have any uneven wear.

Thoughts? I am concerned this is going to lead to new pads and rotors, dependent on how long this has been going on.

Maybe the calibers aren't sliding on the pins..
Appreciate 0
      01-13-2012, 09:17 AM   #2
Private First Class

Drives: F82 6MT
Join Date: Jul 2011
Location: Boston, MA

iTrader: (0)

I'd pull the wheels and investigate. Since you've swapped pads before, you know that the rear calipers are easy to swap/service. Take the pads out. Lube the sliding points on the pad backing plate w/some nice high-temp molybdenum lubricant. Also, lube the pins slightly and ensure they're installed correctly and tightened (sometimes I am in a rush and during a recheck I didn't tighten a pin properly, it happens).

The parking brake is internal to the hub, so should be no issues there w/regard to pad wear. some photos so we can check out the issue. That always helps.

Good luck!
Appreciate 0
Post Reply


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 -4. The time now is 08:00 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.,,,,,,,,, logo and trademark are properties of BIMMERPOST