One Flat Turns to Four

[Stephen Kormilo]

Brian,

I had something similar happen to me a few years ago, with about the 
same difference in tire wear. I just replaced the blown tire with the 
same make/model. No problems in many kms of driving.  You will find that 
a radius difference of 3/32" makes very little % difference in the 
circumference of the tire. As usual, YMMV, but I think replacing only 
the damaged tire is the way to go, unless you cannot get the same 
make/model of tire.

I'm now due to replace the set, because the tire model has been 
discontinued, even though the 'newer' tire still has some tread on it.

In short, I vote for replace one tire.

Cheers,

Stephen Kormilo
Comox, BC
Canada

Silver 2002 Audi A4 3.0QM
Now Departed: Silver '98.5 Audi A4 2.8QM
                             Black '85 Mazda Rx7 GSL-SE

email: stephen at kormilo.ca


On 01/05/2012 12:00 PM, quattro-request at audifans.com wrote:
> Date: Mon, 30 Apr 2012 21:58:44 -0700
> From: Brian Pleet<bpleet at telusplanet.net>
> To:quattro at audifans.com
> Subject: ,
>
>
>
> Cheers,
>
> Stephen Kormilo
> Comox, BC
> Canada
>
> Silver 2002 Audi A4 3.0QM
> Now Departed: Silver '98.5 Audi A4 2.8QM
>                              Black '85 Mazda Rx7 GSL-SE
>
> email: stephen at kormilo.ca
>
>
>
> Message-ID:
> 	<CAEQmpode8T4P=fzUNJm1CerWr_A_pp=oxFduTex1fsHzRyJ6Zg at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I blew a tire on my 95.5 S6 traveling between Calgary and Vancouver last
> week. I heard a clunk, my aftermarket tire pressure monitoring system
> started beeping and I watched the pressure drop. Unfortunately, that
> stretch of the Trans Canada highway is the worst across the country with
> hanging wire nets to catch the rocks tumbling off the mountain. I chose to
> drive on, aware of the price of a ruined tire. Five km later I stopped in a
> safe place and changes the Blizzak winter tire with one the summer wheels I
> was transporting.
>
> First I'm told you have to replace tires in pairs, to minimize imbalance
> side to side. I ordered two replacements. Now I'm told that you have to
> replace the entire set, one for four because the quattro system would be
> upset by different tire radius. The blown tire was 7/32 tread depth, the
> other side was 7/32 and the two remaining are 8/32 left out of a starting
> depth of 11/32.
>
> Two or four? Suggestions?
>
> -- Brian Pleet bpleet at telusplanet.net 95.5 S6 02 TT Roadster 90 90Q