abnormal rear wheel wear

djantlive · 12-10-2012, 12:38 PM

Both of my rear 19" tires have severe wear on the inside of the tire, not the middle of the tire but the side that is inside. tire is sumitomo hrz and replaced this year. but the tires are showing the cord already on the one side.

Suspension is stock and wheel is stock too. Sounds like an alignment issue but I wanted to check if anyone else get this.

Thank

ruskisky · 12-10-2012, 12:51 PM

It could possibly be that you have extra stuff in your trunk that will "lower" your car due to weight, therefore increasing the negative camber already set in the alignment, and increasing tire wear on the inside.

dasss .02

djantlive · 12-10-2012, 05:26 PM

nothing extra in the trunk but my dad did sit in the back for the last 500 miles. he weights 200lbs

nothing usual weight though, I am surprised by the wear. tires seemed fine when i bought the car less than 1k miles ago.

RockM · 12-13-2012, 05:13 PM

Check your bearings, also the shocks.

HiHoBrian · 12-13-2012, 05:15 PM

Your rear trailing arm bushings are blown out. And likely a few other related components but I would say RTAB's for sure.
sent from my ATARI sc1224

djantlive · 12-13-2012, 05:43 PM

Quote:

Originally Posted by HiHoBrian

Your rear trailing arm bushings are blown out. And likely a few other related components but I would say RTAB's for sure.
sent from my ATARI sc1224

Car pulls straight at WOT. Do you think it's the RTAB still? I thought the rear gets swirly when RTAB wears out.

HiHoBrian · 12-13-2012, 06:32 PM

It does for sure when the steel sleeve is completly seperated from the rubber,but they can easily be mushy under power and braking even between 40 and 60k miles. I haven't seen any blown control arm bushings before but I am sure it is possible. If you have the means,I would get a jack,some prybars and some good lights to check them.If you have the cash for it,I would replace them. I had a similar problem at 50k miles in my M and they were blown out.

I have some diy tips for checking rear alignment and adjusting the concentric bolts to help,but don't want to write a novel if its not something you are prepared to do.

sent from my ATARI sc1224

djantlive · 12-20-2012, 03:44 PM

Thanks. I got an alignment. There was excessive negative camber and toe in was off too. The rears were adjusted with new tires on. After the alignment, the wheel is visually straighter without the excess negative camber. Hope it was the only issue as the car drives great besides the tires wear.

12-10-2012, 12:38 PM	#1
djantlive Registered User Join Date: Oct 2012 Location: SF Bay Area Posts: 97 My Ride: E46 M3 View My Garage	abnormal rear wheel wear Both of my rear 19" tires have severe wear on the inside of the tire, not the middle of the tire but the side that is inside. tire is sumitomo hrz and replaced this year. but the tires are showing the cord already on the one side. Suspension is stock and wheel is stock too. Sounds like an alignment issue but I wanted to check if anyone else get this. Thank

12-13-2012, 05:15 PM	#5
HiHoBrian Registered User Join Date: Jul 2011 Location: Connecticut Posts: 955 My Ride: 05 M3 View My Garage	Your rear trailing arm bushings are blown out. And likely a few other related components but I would say RTAB's for sure. sent from my ATARI sc1224 __________________

12-13-2012, 06:32 PM	#7
HiHoBrian Registered User Join Date: Jul 2011 Location: Connecticut Posts: 955 My Ride: 05 M3 View My Garage	It does for sure when the steel sleeve is completly seperated from the rubber,but they can easily be mushy under power and braking even between 40 and 60k miles. I haven't seen any blown control arm bushings before but I am sure it is possible. If you have the means,I would get a jack,some prybars and some good lights to check them.If you have the cash for it,I would replace them. I had a similar problem at 50k miles in my M and they were blown out. I have some diy tips for checking rear alignment and adjusting the concentric bolts to help,but don't want to write a novel if its not something you are prepared to do. sent from my ATARI sc1224 __________________

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12-10-2012, 12:51 PM	#2
ruskisky Registered User Join Date: May 2010 Location: Online Posts: 425 My Ride: slower than yours View My Garage	It could possibly be that you have extra stuff in your trunk that will "lower" your car due to weight, therefore increasing the negative camber already set in the alignment, and increasing tire wear on the inside. dasss .02

12-10-2012, 05:26 PM	#3
djantlive Registered User Join Date: Oct 2012 Location: SF Bay Area Posts: 97 My Ride: E46 M3 View My Garage	nothing extra in the trunk but my dad did sit in the back for the last 500 miles. he weights 200lbs nothing usual weight though, I am surprised by the wear. tires seemed fine when i bought the car less than 1k miles ago.

12-13-2012, 05:13 PM	#4
RockM Registered User Join Date: Jun 2011 Location: SoCal Posts: 5 My Ride: M3 View My Garage	Check your bearings, also the shocks.

12-20-2012, 03:44 PM	#8
djantlive Registered User Join Date: Oct 2012 Location: SF Bay Area Posts: 97 My Ride: E46 M3 View My Garage	Thanks. I got an alignment. There was excessive negative camber and toe in was off too. The rears were adjusted with new tires on. After the alignment, the wheel is visually straighter without the excess negative camber. Hope it was the only issue as the car drives great besides the tires wear.