Excessive rear brake pad wear

patmo335 · 09-12-2012, 03:11 PM

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?

HP Autosport · 09-12-2012, 11:14 PM

Quote:

Originally Posted by patmo335

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.

SlowAsHell · 10-03-2012, 01:50 PM

Quote:

Originally Posted by patmo335

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?

HP Autosport · 10-03-2012, 02:20 PM

Quote:

Originally Posted by SlowAsHell

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.

335okc · 10-03-2012, 02:24 PM

normal traction control uses rear brake too right? not just DTC ?

cvc 22349a · 10-03-2012, 03:02 PM

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.

raceyBMW · 10-03-2012, 04:01 PM

And if you do thi expect increased wear of your rear tires...

neilvosko · 10-03-2012, 08:03 PM

traction control

neilvosko · 10-03-2012, 08:04 PM

add LSD

09-12-2012, 03:11 PM	#1
patmo335 Registered 0 Rep 2 Posts Drives: 2009 335i Join Date: Sep 2012 Location: paris, tn iTrader: (0)	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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10-03-2012, 02:24 PM	#5
335okc Captain 42 Rep 659 Posts Drives: e90 335 Join Date: Feb 2011 Location: okc iTrader: (0)	normal traction control uses rear brake too right? not just DTC ?
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10-03-2012, 03:02 PM	#6
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	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. __________________ 2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS
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10-03-2012, 04:01 PM	#7
raceyBMW king of the hills 92 Rep 2,915 Posts Drives: 2011 M3 w/ESS55, 2001 540i/6 Join Date: Dec 2006 Location: Arvada, CO iTrader: (1) Garage List 2001 BMW 540i/6 [8.17] 1994 530i [9.00] 2007 335i Coupe [8.37]	And if you do thi expect increased wear of your rear tires...
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10-03-2012, 08:03 PM	#8
neilvosko Lieutenant Colonel 89 Rep 1,529 Posts Drives: 335i e92 FBO Join Date: Dec 2011 Location: miami iTrader: (19)	traction control
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10-03-2012, 08:04 PM	#9
neilvosko Lieutenant Colonel 89 Rep 1,529 Posts Drives: 335i e92 FBO Join Date: Dec 2011 Location: miami iTrader: (19)	add LSD
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