[s-cars] S4 brake rotor spec question

[adam morley]

On Fri, Apr 26, 2002 at 06:29:02PM -0400, Bob Rossato wrote:
> Well, according to the Family Album, Bentley is half right and Jimmy is half
> right.
>
> Fronts: 276 x 25mm
> Rears: 269 x 20mm

i think that's a 269x22, like used on the A8L.

>
> I do recall that the Bentley manual showed a picture of the calipers used on
> the 314 x 30mm rotors that we never got in North America, so it may be just
> teasing us by giving the specs for the larger rotors that the rest of the
> world got.
>
> Bob R.
>
> > -----Original Message-----
> > From: Jacobson, Steven F (Steve) [mailto:stevejacobson at avaya.com]
> > Sent: Friday, April 26, 2002 3:24 PM
> > To: s-car-list at yahoogroups.com; S-CAR-List at audifans.com; Jacobson,
> > Steven F (Steve)
> > Subject: [s-cars] S4 brake rotor spec question
> >
> >
> > Does anyone know if the S4 brake rotor thickness specs in Bentley
> > are wrong or out of date?
> >
> > My Bentley shows:
> > Front rotors
> > New: 30mm (1.18 in.)
> > Wear limit: 28mm (1.10 in.)
> >
> > Rear rotors
> > New: 20mm (0.79 in.)
> > Wear limit: 18mm (0.71 in)
> >
> > But, I just noticed the urs4 site says the following under
> > Technical -> Brakes
> > Front - 276 x 25 mm, one-piece, vented
> > Rear - 269 x 25 mm, one-piece, vented
> >
> > So, there appears to be a 5mm discrepancy on front and rear
> > between Bentley and the urs4 site.  Anyone know the real truth -
> > book out of date or if Audi made a design change somewhere along
> > the way?  I haven't taken the obvious next step of pulling a
> > wheel and measuring one.
> >
> >
> > Steve
> > '93 S4
> > '92 100CS
> >
>
>
>
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>

--
adam