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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Excessive rear brake pad wear



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      09-12-2012, 03:11 PM   #1
patmo335
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Excessive rear brake pad wear

BMW replaced the rear pads on my 2009 335i at 20K miles, and now they're replacing them again at 44K miles. The front pads are fine, and warranty is covering the cost, so I'm not concerned about the cost. I've never heard of rear brakes wearing that quickly. I use the cruise control a lot, and the rear brakes are utilized to maintain proper speed, but this seems like excessive wear. Is this normal?
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      09-12-2012, 11:14 PM   #2
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Quote:
Originally Posted by patmo335 View Post
BMW replaced the rear pads on my 2009 335i at 20K miles, and now they're replacing them again at 44K miles. The front pads are fine, and warranty is covering the cost, so I'm not concerned about the cost. I've never heard of rear brakes wearing that quickly. I use the cruise control a lot, and the rear brakes are utilized to maintain proper speed, but this seems like excessive wear. Is this normal?
If you activate DTC, rear brakes are also used.
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      10-03-2012, 01:50 PM   #3
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Quote:
Originally Posted by patmo335 View Post
BMW replaced the rear pads on my 2009 335i at 20K miles, and now they're replacing them again at 44K miles. The front pads are fine, and warranty is covering the cost, so I'm not concerned about the cost. I've never heard of rear brakes wearing that quickly. I use the cruise control a lot, and the rear brakes are utilized to maintain proper speed, but this seems like excessive wear. Is this normal?
I too am having the same problem - I changed my rotors and pads about a year ago and the rears are pretty much done yet the fronts still have a lot of life left. Did you ever find an answer on this problem?
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      10-03-2012, 02:20 PM   #4
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Originally Posted by SlowAsHell View Post
I too am having the same problem - I changed my rotors and pads about a year ago and the rears are pretty much done yet the fronts still have a lot of life left. Did you ever find an answer on this problem?
It's the DTC system applying brakes to control lose of traction. Drive with it off and you will see extended rear brake life.
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      10-03-2012, 02:24 PM   #5
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normal traction control uses rear brake too right? not just DTC ?
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      10-03-2012, 03:02 PM   #6
cvc 22349a
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If you press your DTC button once and release DTC is activated and allows for a little more wheelslip; if you press and hold the DTC button DSC is deactivated which allows for more wheelship=reduced rear traction and extended rear pad life.
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      10-03-2012, 04:01 PM   #7
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And if you do thi expect increased wear of your rear tires...
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      10-03-2012, 08:03 PM   #8
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traction control
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      10-03-2012, 08:04 PM   #9
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add LSD
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