ATE power disc pulsation when braking

[audiSean]

My ATE Powerdiscs have had a high frequency vibration as I decelerate
through 35 mph - 25 mph. I did not have this issue on my C4, though,
only the C5. I've also recently begun to feel a warped vibration at
high speed, so the Powerdiscs are on their last legs.

I, too, will return to a flat rotor, but not OEM. I'll probably mount
up a flat Brembo; the OEMs warp easily.

On 6/6/05, Ivan Demkovitch <idemkovitch at hotmail.com> wrote:
> I think that will be a lesson for us...
> I went with ATE Powerdiscs on my BMW and have those pulsations after 10k.. I
> assume it will get worse. And I'm not at the end of grooves yet...
> 
> On that car I will be back with stock rotors/pads. Can't get any better.
> 
> Ivan
> 93' S4
> 97' 540i/6
> 
> >Date: Mon, 6 Jun 2005 00:46:41 -0400
> >From: "Craig D. Niederst" <cdniederst at comcast.net>
> >Subject: ATE power disc pulsation when braking
> >To: "'Quattro List'" <quattro at audifans.com>,   "'Audi list'"
> >       <v6-12v at www.audifans.com>
> >Message-ID: <20050606044631.28A0F6E80D8 at audifans.com>
> >Content-Type: text/plain;      charset="us-ascii"
> >
> >The ATE Powerdiscs on my '92 100S are at the wear point where I have
> >reached
> >the "bottom" of the grooves machined into the rotor. This causes the car to
> >pulsate badly when braking. Are the rotors at their wear limits when this
> >occurs, or could I just have them turned? They only have about 17k on them,
> >and the OEM pads have ~1/2 of their life left. With the arrival of my '00
> >A6
> >4.2, this car will be for sale soon, and this pulsation will definitely be
> >a
> >problem trying to sell it. TIA.
> >
> >
> >
> >Craig
> >
> >'92 100S (117k)
> >
> >'00 A6 4.2 (53k)
> 
> 
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-- 
Sean [99 A6 2.8q]
http://registry.audiworld.com/audiworld/registry/details.asp?car=9728