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  #1  
Old 08-08-2012, 12:32 PM
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Question X6: Got lousy 3k Miles from new Bridgestone Dueler H/P Sport RFT tires - Any ideas?

Hey all,

I have a 2010 X6 5.0 xdrive with about 25k miles. I had all four tires replaced at a BMW Service Center in late April with brand new Dueler H/P Sport RFTs, and have put about 3k miles on the car in the 3 months since.

I was driving in the rain the other day and could hardly keep the car on the road so I pulled over to have a look at the tires and couldn't believe it... the front tires still look almost brand new but the rear tires are right down to the wear bars. They're practically bald after 3k miles of highway driving.

I know these are performance tires and that the fronts tend to have a longer life, but I've gotten at least 10-12 k miles out of the rears in the past.

I have an appointment to bring it back in to the dealer who sold me the tires but I thought I'd see if anyone has an idea about how this could happen. I'm guessing that the tires are defective or there was a problem with the installation because I can't imagine what I could have done to wear them out so quickly and unevenly. My driving style certainly hasn't changed and I've had no tire pressure warnings or anything of the sort since installation.

Any thoughts would be greatly appreciated.
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  #2  
Old 08-08-2012, 01:00 PM
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Besides "no tire pressure warnings", did you ever check the psi in your new tires?
Good luck with the dlr...22k out of the oe set:
And now only 3k outta the new rear set.
Even the oe tire set mileage is abysmal, imo. Holyfookinmoly.
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  #3  
Old 08-08-2012, 02:50 PM
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I did check the psi the other day when I noticed the problem... all tires at 40psi, even the baldies.

Quote:
Originally Posted by motordavid View Post
Good luck with the dlr...22k out of the oe set:
And now only 3k outta the new rear set.
Even the oe tire set mileage is abysmal, imo. Holyfookinmoly.
GL, mD
Thanks :-)

Actually, I should have been more specific. I got 22k out of the first set of front tires but only about 10-12k on the rears. I had a puncture in one of the rears a year after I got the car and the the dealer talked me into replacing both rears because they were quite worn already. Then around 12k miles later, all four needed to be replaced... which I did this past April.

Everything I've read seems to indicate that you really can't expect more than 10-15k out of these tires when they're on the rear... but 3k is just ridiculous, so I'm very curious to see what the dealer has to say about it.

I recall regularly feeling fleeced when leaving the service department of other brands, but since switching to BMW's and their No Cost (aka prepaid) Maintenance, my service visits are much more enjoyable. I'm hoping that doesn't change. :-)
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Old 08-08-2012, 03:23 PM
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40 psi sounds high. That won't help wear.

There isn't a 2010 manual on this site, but the 2009 manual posted lists the X6 50i tire pressures as 33 psi for 19", 36 psi for 20 or 21". Check your door jamb, and your manual, and see if they correspond to each other. There have been posts about people having different labels on the door jamb than in the manual.

Rear tire wear is impacted greatly by toe-in settings. Even if it is within spec, it needs to be at the low end of the spec for maximum tire life. If not, the rear tires are scrubbing with each rotation and can wear very quickly.
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Old 08-08-2012, 08:37 PM
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Thanks JCL... I'll check it out.

I hadn't touched the tires since they were installed but maybe that's a clue.
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Old 08-09-2012, 05:05 PM
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Yes I agree with the comment about the psi. Wear at the center of the tread means the air pressure was most likely too high. There are other causes. But in your case I bet it was psi. I am not sure about the proper psi for your ride but for your next set on the rear try not to over-inflate.


Quote:
Originally Posted by JCL View Post
40 psi sounds high. That won't help wear.

There isn't a 2010 manual on this site, but the 2009 manual posted lists the X6 50i tire pressures as 33 psi for 19", 36 psi for 20 or 21". Check your door jamb, and your manual, and see if they correspond to each other. There have been posts about people having different labels on the door jamb than in the manual.

Rear tire wear is impacted greatly by toe-in settings. Even if it is within spec, it needs to be at the low end of the spec for maximum tire life. If not, the rear tires are scrubbing with each rotation and can wear very quickly.
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Old 08-09-2012, 09:12 PM
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The door jamb placard says 36psi... strange that the tech who installed them would have overinflated, but the dealer believes the tires are defective.

I saw the service manager today and after inspecting my tires he contacted Bridgestone and apparently they agreed to give me a one time "goodwill" replacement of the tires. I love the language... instead of an apology, they make it seem like it was my fault and they are doing me a favor.

However, neither Bridgestone, BMW, nor the dealer will cover mounting, balancing and the other incidental costs... probably in the neighborhood of $150. I argued a bit but got nowhere, and am left wondering why a dealer who sold me a defective product feels entitled to make a profit on two transactions while I'm out the extra cost and the inconvenience of two additional trips to the service department of 60 miles each.

The pettiness and short sightedness of doing business this way baffles me.
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Old 09-03-2012, 01:58 PM
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dont get run flats, they suck
and never buy stuff from the stealership

RFs are heavier, dont last as long, cost wayyyyyyy more, ride harsher, u cant repair them,
u could probly buy 2 sets of normals tires that will last u double the miles and still save 5-600$ if u go to a indy tire shop

older m3s didnt even have a spare and they had regular tires... lol money grabbing scam=RFs
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Old 09-03-2012, 02:40 PM
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Every time I have a dealer or anyone touch my tires, I make sure to recheck the pressure after. For some reason they all set the pressure too high. At first I thought it was just an error, but the tires that are serviced are equally overinflated.
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Old 09-03-2012, 03:52 PM
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Quote:
Originally Posted by blktoptrvl View Post
Every time I have a dealer or anyone touch my tires, I make sure to recheck the pressure after. For some reason they all set the pressure too high. At first I thought it was just an error, but the tires that are serviced are equally overinflated.

Every tire shop i've been to does this. Some as high as 45 lbs.
So It's good to check it before you leave the tire shop and be prepared to
point out the reference inside the door jam. Smile when you do because for
some reason tire installers don't seem to have a clue and seeing it print causes a bit of confusion.
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