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  #1  
Old 01-26-2009, 09:04 PM
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Run flat tires...do you rotate?

We have a 2007 328i with run flat tires.

The service manager told me a few months back that they do not get rotated and only last about 20k miles.

The service writer and my most recent visit told me that they do indeed need to be rotated.

The tires are the same size so I don't see why you would not rotate them.

Any thoughts?

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  #2  
Old 01-26-2009, 09:14 PM
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Are they staggered?
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  #3  
Old 01-26-2009, 09:15 PM
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Quote:
Originally Posted by iwrock View Post
Are they staggered?
What does that mean?
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  #4  
Old 01-26-2009, 09:17 PM
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Quote:
The tires are the same size so I don't see why you would not rotate them.
Quote:
Originally Posted by iwrock View Post
Are they staggered?
What we have here is a failure to communicate.
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  #5  
Old 01-26-2009, 09:18 PM
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Quote:
Originally Posted by MTI View Post
What we have here is a failure to communicate.
Ooops, I guess I should slow down when reading....



I say rotate em.... As long as they are the same size, and rotate the same direction, you got nothing to lose.
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  #6  
Old 01-26-2009, 09:22 PM
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Rotate front to back, don't switch sides.
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  #7  
Old 01-26-2009, 09:35 PM
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Read the owners manual?
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  #8  
Old 01-26-2009, 10:01 PM
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He is right about that 20k mile thing, new BMW's chew up tires and they are expensive!

The tires are probably directional so you can only go front to back.
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Old 01-26-2009, 10:08 PM
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Quote:
Originally Posted by ForcedInduction View Post
Rotate front to back, don't switch sides.
Just out of curiosity, why not? Something peculiar to run-flats? I'm pretty easy on tires these days, but I recently got saddled with a BMW that is still under warranty and noticed they crossed them front to back.
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Old 01-26-2009, 10:11 PM
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Originally Posted by John Doe View Post
Just out of curiosity, why not? Something peculiar to run-flats? I'm pretty easy on tires these days, but I recently got saddled with a BMW that is still under warranty and noticed they crossed them front to back.
A lot of high performance tires that the cars come with these days are directional. Look at the tires, I bet you a beer you see a directional arrow.

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  #11  
Old 01-26-2009, 10:14 PM
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Originally Posted by Hatterasguy View Post
A lot of high performance tires that the cars come with these days are directional. Look at the tires, I bet you a beer you see a directional arrow.
The ones on my E300 have arrows on them and the tire shop where I got them rotates them front to back and from right to left. I'm confused--the arrow seems to indicate which way the tire should roll and the tread is in a V pattern--I know you couldn't flip it so the open part of the V rolled forward, but don't see how going r to l would affect this ($40 for lifetime balance and rotation is just too big a draw to spend any appreciable time researching the issue).
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  #12  
Old 01-26-2009, 10:24 PM
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It doesn't matter as long as the arrow is pointed in the right direction. In theory if you reverse it, the tire could fail.

To rotate them right to left they most pop the tire off the wheel which is a PITA, but as long as there doing it.
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  #13  
Old 01-26-2009, 10:26 PM
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Quote:
Originally Posted by Hatterasguy View Post

To rotate them right to left they most pop the tire off the wheel which is a PITA, but as long as there doing it.
That answers the question--they have to take the tire off the wheel (duh). I've never watched them do it--don't know if that is good for runflats or not. Probably won't go back with them, as I'm driving that car.
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  #14  
Old 01-27-2009, 03:29 AM
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Tire pattern makes a BIG DIFFERENCE...

Make sure you run the tire in the direction of the arrow ... and it has to do more with hydroplaning than anything else...

The tread is designed to swipe, or whisk the water from the center of the tread's contact patch outward towards the edges of the tire.

If the tire were reversed, the tread would DRAW the water in towards the center of the tire, then as the pressure built up as the tire moved/rotated forward, the resulting pressure would be enough to raise the tire up from the road's surface and you'd lose all contact with the road itself...therefore you'd be hydroplaning...

So, the ONLY way to "rotate" these particular style of tires is from front to back and back to front...never cross over unless you remove the tires from their respective rims and remount them on the rims from the other side of the vehicle...and at that time, what used to be the inner sidewalls will then be the outer sidewalls and vise-a-ver-sa...and only if the manufacture of the tire allows that type of swaping...
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  #15  
Old 01-27-2009, 08:29 AM
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Day late and a dollar short 'burg, but thanks

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