[A4] To change or Not to change all four tires

Rocky Mullin caliban at sharon.net
Tue Jun 20 23:34:48 EDT 2006

	it matters less the smaller the difference is.  the reason donut
spares have a 50MPH limit is for the diffs, because the size is so radically

At 6:11 PM -0600 6/20/06, Sean Reifschneider wrote:
>On Tue, Jun 20, 2006 at 11:47:11PM +0000, Venkat Venkataratnam wrote:
>>I have '98 A4 2.8 Quattro. I just had a flat on one of my tires (rear one)
>>on the side wall. Should I change just the two rear ones or all the four?
>>The rear two might have lasted just couple of more months.
>I called Audi about our '97 A4 2.8Q probably 5 years ago to verify my
>understanding about this.  We had a flat on a trip, 700 miles from home, 50
>miles from nowhere, and the guy at the Nowhere Tire Shoppe recommended
>replacement of all 4 tires because "different size tires can lead to
>different rotational speeds of the 4 tires, leading to premature wear of
>the differential."
>I called him on bullshit, because, you know, the differentials are in there
>because the tires often aren't going the same speeds...  There's probably
>some exact steering position you can use which causes them to pretty much
>all rotate the same speed (though I'd expect alignment differences between
>the front and back would happen anyway).
>Well, to cut to the chase, as it were, the Audi "technical support line" or
>whatever it was I called (AoA, anyway) said "Nah, you're fine".  I was
>planning on replacing all 4 tires soon anyway, and the Nowhere Tire Shoppe
>didn't have the T/A VR4s I really wanted to put on there, so I really
>didn't want to get more than just one to get me home.
>  You think your Commodore 64 is really neato.
>  What kinda chip you got in there, a Dorito?  -- Weird Al
>Sean Reifschneider, Member of Technical Staff <jafo at tummy.com>
>tummy.com, ltd. - Linux Consulting since 1995: Ask me about High Availability
>A4 mailing list
>A4 at audifans.com

  Rocky Mullin 


More information about the A4 mailing list