ATE power disc pulsation when braking

[Jim Jordan]

Hi Craig,

There was pulsation on the older Audi's(I mean older than yours)that could
be cured by having the rotors flattened using centerless grinding.  It can
be done at a lot of  shops;  mine were done at a Midas Muffler believe it or
not.  Works fine;  just be sure that you have the wrench abide by the rotor
minimum thickness when the flattening is done. 

Geez, you gotta be careful about putting "sale" in your posts;  dispose of
perhaps?

Cheers!

Jim Jordan  

>  -----Original Message-----
>  From: Craig D. Niederst [mailto:cdniederst at comcast.net] 
>  Sent: Sunday, June 05, 2005 9:47 PM
>  To: 'Quattro List'; 'Audi list'
>  Subject: ATE power disc pulsation when braking
>  
>  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)
>  
>   
>  
>  
>