question regarding rear tires wearing out on the outside

Macky112 · 06-19-2012, 02:08 PM

Hi All,

my car is bone stock, and I am a boring driver with a daily 50 mi commute, no track days and no aggressive driving (rarely gone past 4k rpm)

and I noticed my rear tires are worn on the outside, fronts are wearing out very evenly.

since i am gonna get new tires soon, is it necessary to get alignment done as well?

attached pix for your reference, pix taken at 18k miles. (first pic is one of the front tire, then is rear right and then rear left, not sure why the rear pix came out up-side-down...)

Regards,
Michael

mrh335 · 07-09-2012, 02:38 PM

I have has the same wear pattern on my m3. I have been running less pressure in the rears attempting to compensate. I even think the center tread measures taller than inside and outside with the outside showing the most wear.

I am still
Not sure myself if this is normal wear. These are also the contis on the ZCP.

My 335i wore heavily on the inside and I expected the same on the m3.

tibra1 · 07-09-2012, 02:40 PM

You may have an alignment issue..no way the rears are suppose to wear that unevenly...mine are wearing evenly on both sides..my guess is your rear camber and/or toe may be out of spec

Sleeper519 · 07-09-2012, 02:57 PM

Quote:

Originally Posted by hoehne

I have has the same wear pattern on my m3. I have been running less pressure in the rears attempting to compensate. I even think the center tread measures taller than inside and outside with the outside showing the most wear.

I am still
Not sure myself if this is normal wear. These are also the contis on the ZCP.

My 335i wore heavily on the inside and I expected the same on the m3.

Running less air pressure will cause the outer edges to wear down more than the center.

Agree with tibra, most likely camber and toe need adjusting.

**ben@tirerack** · 07-09-2012, 04:03 PM

Definitely has the look of an alignment problem. If it were reversed, and the inside edges were wearing faster, I'd figure it was the 'normal' BMW negative camber wear pattern. But this looks like camber too positive or too much toe-in.

Dave07997S · 07-09-2012, 08:45 PM

One other thing to what has already been said...the fact you got 18kmiles out of the rears on a M3 is good.

Dave

06-19-2012, 02:08 PM	#1
Macky112 newb 16 Rep 109 Posts Drives: 2008 E93 M3, 6MT Join Date: Jun 2008 Location: Irvine, CA iTrader: (0)	question regarding rear tires wearing out on the outside Hi All, my car is bone stock, and I am a boring driver with a daily 50 mi commute, no track days and no aggressive driving (rarely gone past 4k rpm) and I noticed my rear tires are worn on the outside, fronts are wearing out very evenly. since i am gonna get new tires soon, is it necessary to get alignment done as well? attached pix for your reference, pix taken at 18k miles. (first pic is one of the front tire, then is rear right and then rear left, not sure why the rear pix came out up-side-down...) Regards, Michael Attached Images
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07-09-2012, 02:38 PM	#2
mrh335 Second Lieutenant 29 Rep 207 Posts Drives: 2011 M3 sedan, jet black Join Date: Oct 2006 Location: Bay Area iTrader: (0)	I have has the same wear pattern on my m3. I have been running less pressure in the rears attempting to compensate. I even think the center tread measures taller than inside and outside with the outside showing the most wear. I am still Not sure myself if this is normal wear. These are also the contis on the ZCP. My 335i wore heavily on the inside and I expected the same on the m3. __________________ 2011 E90 M3 Jet Black/Black ZPP, ZCP, ZTP, ZCW, 6FL, PDC, shades, 6MT
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07-09-2012, 02:40 PM	#3
tibra1 Banned 127 Rep 6,773 Posts Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC iTrader: (4)	You may have an alignment issue..no way the rears are suppose to wear that unevenly...mine are wearing evenly on both sides..my guess is your rear camber and/or toe may be out of spec
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07-09-2012, 04:03 PM	#5
ben@tirerack M3Post Supporting Vendor 87 Rep 964 Posts Drives: 740i Join Date: Mar 2008 Location: South Bend, IN iTrader: (0)	Definitely has the look of an alignment problem. If it were reversed, and the inside edges were wearing faster, I'd figure it was the 'normal' BMW negative camber wear pattern. But this looks like camber too positive or too much toe-in. __________________ _______________________________________________ I have accepted a new position at Tire Rack and am no longer in the sales department. gary@tirerack.com is available to assist with M3 questions.
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07-09-2012, 08:45 PM	#6
Dave07997S Brigadier General 720 Rep 3,964 Posts Drives: 2020 Ford Mustang GT Join Date: May 2009 Location: El Segundo, CA iTrader: (1)	One other thing to what has already been said...the fact you got 18kmiles out of the rears on a M3 is good. Dave __________________ 2020 Ford Mustang GT 6MT PP1 444rwhp (Sold)2013 M3 Coupe-MR/BLK ZCP, 2011 M3 Coupe-MR/Blk 2007 Porsche 997C2S Speed Yellow/Blk sport seats 2004 BMW M3 Imola/Blk
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