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Alignment and tire issues - 2009 XC70 V70-XC70 2009

posted by  someone claiming to be Juan P. on  Thu Jan 17 21:20 CST 2013 [RELATED]


Hey all,

I have a quick Volvo question - it concerns my dad's newest Volvo, not one of my own. He recently had an issue with his (new-to-him) 2009 XC70 3.2, which he purchased a monthe ago. This car, with 42k miles, replaced his former 2003 XC70 2.5T, which is another story for another time. He was having quite a bit of issues with the alignment (it was pulling badly to the right), so what the dealership (The Volvo Store, Winter Park FL) did was replace the upper control arms and replace both of the front tires. However, they did not replace the rear ones. We have always been of the belief that on a complex AWD car such as an '09 XC70 3.2, all four tires must be replaced to prevent drivetrain wear. The shop told him he didn't need to replace either of the back tires. I told him to replace them ASAP. Who's right, the shop or me?








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    Alignment and tire issues - 2009 XC70 V70-XC70 2009

    posted by  james_a_sousa on  Fri Jan 18 21:12 CST 2013
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    last visit: Thu Oct 23 18:51 CST 2014
    [RELATED]

    The real issue is tire circumference.

    If they are all the same, no worries.

    Somewhere I saw an article about what differences can be tolerated by several systems - several were 1/2" inch, some 1/4"

    I don't remember which cars were mentioned, but I think that Subaru and Volvo were mentioned.

    Here's the link for the Tire Rack article -

    http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=18
    --
    '96 855R,'64 PV544 driver, '67 P1800 basket case, '72 Yamaha Rd400, '68 Honda 350-4, '12 XC70, the first 5 are mine, heh, heh, 525,000 miles put on 10 bricks James A Sousa








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    Alignment and tire issues - 2009 XC70 V70-XC70 2009

    posted by  KlausC on  Fri Jan 18 10:08 CST 2013
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    Before the switch to Haldex (2003), the larger diameter tires(new) must have been put on the rear to keep the viscous coupling from being engaged at all times. The Haldex system is slightly more forgiving in this regard, BUT the new tires should still have been installed in the rear.

    Depending on the treadwear, you might want to make all 4 tires the same tread depth. That will reduce stress on the Haldex system.
    --
    My name is Klaus and I am a V♂lv♂holic







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