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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 06-02-2015, 05:41 AM
chrisbean08 chrisbean08 is offline
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Location: Harrisonburg, VA
 
Join Date: May 2013
Posts: 21
Mein Auto: X3 E83
Wheel and Tire Question

Hello all,

I'm thinking about changing out the wheels on my 2007 X3 sport model. Right now I am running the 19" OEM staggered set up with Continental Extreme DWS. It has 245/45/19 on the fronts with 275/50/19 on the rear.

The tires have 25K miles on them. The fronts have 1-1.5 years left while the rears will need to be replaced in about 4 months. I'm planning on keeping the car for a long time as it only has 99K on it and it has never (knock wood) given me an ounce of trouble. Hands down the most reliable car I have ever owned. Truth be told, I am obsessive about maintenance so I suspect that has had a big role. I love the Contis, but they are expensive. I just don't drive my car like I used to with two young children now so I'm looking for something with comfort as the top priority.

I have thought about changing out the sport wheels to either the 18 OEM sport wheels or the 17 OEM wheels the idea being that if I can get four tires of the same size, I could rotate them and get longer life. I know the BMW manual says don't rotate, but every Indy BMW mechanic I have spoken with says that's ridiculous.

Has anyone else done something similar? Thanks for your input all.
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  #2  
Old 06-02-2015, 09:52 AM
jdauria jdauria is offline
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Location: Arlington, VA / NY
 
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Mein Auto: E39 ///M5
Interesting that you run staggered tire specs. I thought the AWD system wanted square setups?
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  #3  
Old 06-02-2015, 10:13 AM
chrisbean08 chrisbean08 is offline
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Location: Harrisonburg, VA
 
Join Date: May 2013
Posts: 21
Mein Auto: X3 E83
Hi jdauria,

The staggered set up is the stock 19" wheel option on the sport model. The AWD system is really only finicky about tire/wheel circumferences across all wheels rather than tire widths.

All four wheels/tires are within a centimeter of circumference with one another. The staggered set up in this case refers to the rear wheels being wider than the front wheels.
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