[A4] how spare is the spare?

[Single Malt]

I am no expert, but I believe they are referring to not mixing different brands
or geometry's.  Is your spare the exact same tire and wheel combo as your
others?  If so, I think they mean the wear difference will not effect the
rolling radius to the degree that will damage the quattro.  There must be a
tolerance range that encompasses the wear differences.

I've been told: 1) they have to be replaced in sets; and 2) I've been told
pairs is good enough (on the same axle); and 3) I've also been told that as
long as they're the same brand/size it's OK to mix new with old.

Based on your quotes from the manual, I'd say #3 is consistent with that.


--- "E. Tyurin" <evgeny at tyurin.com> wrote:
> 
> Hello gang,
> 
> I'm somewhat confused by what the manual says about "equality" of
> tires in a quattro car.
> 
> It says that "All four wheels must always have the same rolling
> radius.  Different tires may ... damage the All Wheel Drive" - and (in
> the same paragraph) - "The proper function of the system is not
> affected by unevenly worn tires."
> 
> Case in point.  I recently nearly lost one tire (deep sidewall cut) -
> and put on my spare tire.  The difference is 24,000 miles or about
> 2/16" (3mm).  Do I keep on driving like that or do I need to buy all 5
> new tires?
> 
> --ET.
> 2002 A4 1.8tq
> 
> -- 
> "Markets can remain irrational longer than 
> you can remain solvent."   -- J. M. Keynes
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=====
##########################################################
Single Malt
'01.5 S4
Garaged at 9200ft
just outside Denver, CO

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