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      10-06-2013, 12:10 PM   #2
puchchu
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Drives: X3 Si 3.0
Join Date: May 2011
Location: London

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Hi!

I had a similar noise problems from rear diff on my 2007 X3 si car at lower speeds. The dealer changed differential and transmission both under warranty but the problem never got solved completely.... He finally put it on tires (my tires were not BMW * rated). This issue is very well documented in this and other forum and I finally changed to * rated tires and it's a different car from that day.... the problem is completely gone... And let me tell you my earlier tires were very new (came along with my purchase) and the tire dealer was wondering why I was changing it!!!

BMW X3 diff is very sensitive to tire dimensions and all and I suggest use the * rated tires and you will have no issues....
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