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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 09-16-2013, 05:03 PM
Mtack Mtack is offline
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Average lifespan of tires.

I have searched the forum about excessive tire wear on my brother-in-laws 06 330xi. I understand it is due to negative camber but I am curious about how many miles we should expect the tires to last. His car destroys the inside of all 4 tires in about 25, 000 miles or less. It has been to every alignment shop in this area. I shook it down earlier and found the rear shocks to be weak but nothing else. Can anything be done to improve the tire wear? It drives straight and wears all 4 tires pretty evenly though it does wear the rears faster. Our local BMW dealer told him it was because of the all-wheel drive. I am curious because my 07 530xi does not have this problem. This looks like a great place for a first time BMW owner like myself.

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  #2  
Old 09-16-2013, 06:00 PM
ctuna ctuna is online now
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If they are high performance tires its to be expected.

If they are high performance tires its to be expected.
Runflats don't have a long life rating either.
If you are buying all season go flats something like the Conti DWS you can expect to
get 40 to 50k . Yeah BMW has a screwy alignment that favors - camber for handling
I believe . I wonder if anyone has tried a flatter number with good results.

Go to Tire Rack they review there tires . If you want long life tires you have to look
at utog spec I think . I bought the conti DWS amoung other things for its high utog spec
I think I should get 40 to 50k out of them.

also FYI
http://www.e90post.com/forums/forumdisplay.php?f=16

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Old 09-16-2013, 06:30 PM
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depend which country you live in and road conditions in your country

here tires last about 30,000km MAX
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Old 09-16-2013, 07:22 PM
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those look like dunlop sp sport maxx tires-- UTQG of 240 which is pretty soft.

25K out of a set of max performance summer tires is on the upper end of the life span for that class of tire, usually you can expect only about 20K miles or less out of a set of any tire in this class.

you'll need to look at all season tires if you want significantly better mileage. i suspect your car has all seasons, you probably get twice the mileage out of your tires or more, the stock E60 tires in the us are grand touring all seasons and have a utqg rating of 400.
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Old 09-16-2013, 07:33 PM
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Originally Posted by Mtack View Post
I have searched the forum about excessive tire wear on my brother-in-laws 06 330xi. I understand it is due to negative camber but I am curious about how many miles we should expect the tires to last. His car destroys the inside of all 4 tires in about 25, 000 miles or less. It has been to every alignment shop in this area. I shook it down earlier and found the rear shocks to be weak but nothing else. Can anything be done to improve the tire wear? It drives straight and wears all 4 tires pretty evenly though it does wear the rears faster. Our local BMW dealer told him it was because of the all-wheel drive. I am curious because my 07 530xi does not have this problem. This looks like a great place for a first time BMW owner like myself.

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These tires sure took a beating...just how weak are your shocks? Yes, camber is a tire killer, especially for "low profile" tires and there's not much we can do about it as camber is not adjsutable.

I wouldn't buy tire that is speed-rated any higher than what came on your car originally as higher speed rated tires tend to wear faster. Pay attention to the tire's UTQG for wear rating although that index can be deceiving.

You always have the option of buying a tire with a mileage warranty; even 'high' speed-rated tires offer them these days.

BTW, what brand of tire are we looking at in this pic?
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Old 09-16-2013, 07:34 PM
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Quote:
Originally Posted by Mtack View Post
I have searched the forum about excessive tire wear on my brother-in-laws 06 330xi. I understand it is due to negative camber but I am curious about how many miles we should expect the tires to last. His car destroys the inside of all 4 tires in about 25, 000 miles or less. It has been to every alignment shop in this area. I shook it down earlier and found the rear shocks to be weak but nothing else. Can anything be done to improve the tire wear? It drives straight and wears all 4 tires pretty evenly though it does wear the rears faster. Our local BMW dealer told him it was because of the all-wheel drive. I am curious because my 07 530xi does not have this problem. This looks like a great place for a first time BMW owner like myself.

About par, maybe better. But only in the rear - if fronts wear similarly, you've an alignment issue, maybe due to suspension parts in need of repair, maybe just an adjust. Get 'er up on a lift - take a peek! Re-torque all suspension parts. Check alignment.
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Old 09-16-2013, 07:57 PM
Mtack Mtack is offline
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Originally Posted by pointandgo View Post
These tires sure took a beating...just how weak are your shocks? Yes, camber is a tire killer, especially for "low profile" tires and there's not much we can do about it as camber is not adjsutable.

I wouldn't buy tire that is speed-rated any higher than what came on your car originally as higher speed rated tires tend to wear faster. Pay attention to the tire's UTQG for wear rating although that index can be deceiving.

You always have the option of buying a tire with a mileage warranty; even 'high' speed-rated tires offer them these days.

BTW, what brand of tire are we looking at in this pic?
The rear shocks don`t feel bad as far as the ride but they are both leaking. I am not sure what brand of tire he had, I will check tomorrow.


Quote:
Originally Posted by CALWATERBOY View Post
About par, maybe better. But only in the rear - if fronts wear similarly, you've an alignment issue, maybe due to suspension parts in need of repair, maybe just an adjust. Get 'er up on a lift - take a peek! Re-torque all suspension parts. Check alignment.
The rear wears faster than the front but all four tires were down to the cord. I went through the rear of the car but never checked the frontend yet. I think our biggest problem was comparing his 330xi to my 530xi. My car has the OEM Continentals with about 30,000 miles on them. They are just about ready to change but are worn evenly. We both assumed that our cars would be pretty similar. He just put brand new tires on and had his alignment checked within the last week. This is the second time his car has done this to the tires so I was trying to see if there was anything we were overlooking.
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Old 09-16-2013, 08:14 PM
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The rear shocks don`t feel bad as far as the ride but they are both leaking. I am not sure what brand of tire he had, I will check tomorrow.




The rear wears faster than the front but all four tires were down to the cord. I went through the rear of the car but never checked the frontend yet. I think our biggest problem was comparing his 330xi to my 530xi. My car has the OEM Continentals with about 30,000 miles on them. They are just about ready to change but are worn evenly. We both assumed that our cars would be pretty similar. He just put brand new tires on and had his alignment checked within the last week. This is the second time his car has done this to the tires so I was trying to see if there was anything we were overlooking.
Shocks are leaking? Hmm. Seven year old suspension parts...Hmm. Time to bump this up to someone with mechanical expertise.
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Old 09-16-2013, 08:27 PM
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Re: Average lifespan of tires.

I am SAE certified in a few categories but have NO experience with BMW. I know the shocks are an issue but this car has always been rough on tires. I am putting shocks on it this week but wanted to make sure we wasn't missing anything else. I took a pry bar to every bushing on the rear of this car and found no play in any of the them. From the sound of it and from all the threads I read it sounds like the problem with the car isn't too uncommon.

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Old 09-17-2013, 12:42 AM
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Re: Average lifespan of tires.

One thing I just noticed. On the alignment sheet they are listing the car as an 07 but it is an 06. Are the alignment specs the same for both years or are they setting it up wrong?

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Old 09-17-2013, 01:00 AM
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Average lifespan of tires.

If that is your alignment sheet for the offending car smack whoever did it and get the toe straightened out, that is what is eating your tires...they're essentially dragging and that's why the inside are wearing so fast

Camber is bad on tires, toe is worse...


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Old 09-17-2013, 05:39 AM
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Does that Firestone shop align the car per BMW procedures, with a full tank of fuel and ballast at the correct locations in the car? If not, the alignment is off and it will chew through tires. The problem will be exacerbated if your friend has a mellow driving style and does not regularly load up the suspension in hard cornering.

Also, please do your friend a favor: Teach him how to check his tires for wear, how to read wear indicator bars and that he should do it more often. Wearing tires down to the cords is just inexcusable neglect (and dangerous).

One more thought: It's hard to tell from that one photo but it appears that tire may have been run under-inflated by a few PSI for many miles, adding to the problem.
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Old 09-17-2013, 12:28 PM
surfcity335i surfcity335i is offline
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My 2009 C63 evenly burned through a set of rear tires every 5K miles. How's that for cost of fun?
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Old 09-17-2013, 12:35 PM
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Depends on each individual...Driving habits dictate
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Old 09-17-2013, 12:45 PM
surfcity335i surfcity335i is offline
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Depends on each individual...Driving habits dictate
Driving habits influence but do not dictate. From what the dealer tells me, most people were getting 5K out of a set of rears. And trust me, I drove my C63 like a grandma most of the time.
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Old 09-17-2013, 12:55 PM
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Driving habits influence but do not dictate. From what the dealer tells me, most people were getting 5K out of a set of rears. And trust me, I drove my C63 like a grandma most of the time.
You're dealer wants to sell you tires and is lying through his teeth.
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Old 09-17-2013, 12:55 PM
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Driving habits influence but do not dictate. From what the dealer tells me, most people were getting 5K out of a set of rears. And trust me, I drove my C63 like a grandma most of the time.
5k on a set of rears?? Insanity!! Don't tell me that's all you got out of rears on the Merc.
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Old 09-17-2013, 01:09 PM
surfcity335i surfcity335i is offline
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You're dealer wants to sell you tires and is lying through his teeth.
I'm not effing stupid. I've seen my car burn through them to the wear bars in 5K, I've also seen other C63's with 5K on the odometer with tires worn to the wear bars. Do a little research before you say something like that. Go to MBWorld and see what others say about their C63 tire life.
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Old 09-17-2013, 01:10 PM
surfcity335i surfcity335i is offline
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5k on a set of rears?? Insanity!! Don't tell me that's all you got out of rears on the Merc.
I'm telling you just that. It was insane. But the tires were worn evenly so it was not an alignment issue.
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Old 09-17-2013, 01:30 PM
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Average lifespan of tires.

It actually is an alignment issue. A really aggressive track focused alignment will get you a really nice on-center feel and/or a quicker turn-in at the expense of tire wear. Not surprised one of the best handling and most hoon-tastic mercs ever has an aggressive alignment that eats tires.


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Old 09-17-2013, 01:34 PM
surfcity335i surfcity335i is offline
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It actually is an alignment issue. A really aggressive track focused alignment will get you a really nice on-center feel and/or a quicker turn-in at the expense of tire wear. Not surprised one of the best handling and most hoon-tastic mercs ever has an aggressive alignment that eats tires.


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Well, I guess what I meant was that my tires were bald from one side to the other evenly. Not like I had zero tread in the inside of the tire and 50% on the outside. Even with the tire wear, the car was the most fun to drive of any car I've ever owned. I'd still be driving it if I had the cajones to own it beyond the warranty. Head bolts were a problem in 09 and I sure as **** didn't want the $7K repair bill when they failed.
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Old 09-17-2013, 06:39 PM
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Originally Posted by surfcity335i View Post
Driving habits influence but do not dictate. From what the dealer tells me, most people were getting 5K out of a set of rears. And trust me, I drove my C63 like a grandma most of the time.
The only car that I know of that got about 5K on the original tires was the Acura NSX when it was originally introduced. Honda applied what were virtual racing tires (Yokohama) to the car apparently to impress the automotive press with its handling.

It wasn't long before a class action lawsuit ensued for the tire wear issue...and the owner's won.

I could list about six more successful class action lawsuits against car manufacturers for premature tire wear (including BMW) over the recent years.

Tire longevity is not high on the list of priorities when car manufacturers set specifications with their tire suppliers. Price is...and they quibble over pennies.
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Old 09-17-2013, 06:58 PM
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Originally Posted by Zeichen311 View Post
Does that Firestone shop align the car per BMW procedures, with a full tank of fuel and ballast at the correct locations in the car? If not, the alignment is off and it will chew through tires. The problem will be exacerbated if your friend has a mellow driving style and does not regularly load up the suspension in hard cornering.

Also, please do your friend a favor: Teach him how to check his tires for wear, how to read wear indicator bars and that he should do it more often. Wearing tires down to the cords is just inexcusable neglect (and dangerous).

One more thought: It's hard to tell from that one photo but it appears that tire may have been run under-inflated by a few PSI for many miles, adding to the problem.
This is exactly why I joined this forum! This car has been to 3 different local tire shops and one local self proclaimed BMW specialist. NOT ONE of them tried adding weight anywhere. I guess we are going to have to find someplace to take these things to when we need an alignment.

My brother-in-law drives his car like an old lady too and he is guilty of running too low of pressure in his tires. The rears have been run at about 30 psi for the past few months. As far as his tire wear this is his 2nd go around with premature tire wear. He knew his tires were bad but said he didn`t know they were all showing cord. He was holding off on new tires until we could figure out what we could do to "fix" it, if anything.

Thanks for all of the replies, suggestions, etc. I have seen forums ignore new guys or worse. This seems like a great place so far!
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Old 09-17-2013, 07:05 PM
fdriller9 fdriller9 is online now
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Originally Posted by Mtack View Post
I have searched the forum about excessive tire wear on my brother-in-laws 06 330xi. I understand it is due to negative camber but I am curious about how many miles we should expect the tires to last. His car destroys the inside of all 4 tires in about 25, 000 miles or less. It has been to every alignment shop in this area. I shook it down earlier and found the rear shocks to be weak but nothing else. Can anything be done to improve the tire wear? It drives straight and wears all 4 tires pretty evenly though it does wear the rears faster. Our local BMW dealer told him it was because of the all-wheel drive. I am curious because my 07 530xi does not have this problem. This looks like a great place for a first time BMW owner like myself.

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Inner tire wear has NOTHING to do with negative camber. It's excessive toe in that will cause inner tire wear.

Basically, toe in drags your tire down the road. That's why the inner side wears faster.

I run -2.0 in the rear and while the inners still wear faster, it's not crazy uneven. I have a bit of toe in.

Also worn bushings can cause dynamic changes in suspension alignment. So while you car may have perfect alignment on the rack, as you drive, those spec will change.
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Old 09-17-2013, 07:36 PM
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Originally Posted by fdriller9 View Post
Inner tire wear has NOTHING to do with negative camber. It's excessive toe in that will cause inner tire wear.

Basically, toe in drags your tire down the road. That's why the inner side wears faster.

I run -2.0 in the rear and while the inners still wear faster, it's not crazy uneven. I have a bit of toe in.

Also worn bushings can cause dynamic changes in suspension alignment. So while you car may have perfect alignment on the rack, as you drive, those spec will change.
We just checked this car with ~375lbs of weight in the rear. The outside of the tires are not even touching the ground. Negative camber MOST DEFINITELY will affect inner tire wear. There isn`t a bad bushing anywhere in the rear of the car but the shocks are weak. Thanks for the advice.
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