[s-cars] Re: S-CAR-List Digest, Vol 7, Issue 63 - S4/S6 brakes

[Larry C Leung]

Not sure why, but when setting up my A2 GTi for Autocross on
test and tune days, I found biasing the brakes towards the rear
(using the stock bias valve) also made the brakes "feel" better. 
Didn't help the actual stopping, but they did feel better subjectively
at the pedal. Haven't played with bias on any of my Q's, but then
again, I don't (and didn't)  usually autocross them either. 

LL - NY


> Date: Mon, 17 May 2004 03:02:27 +0000
> From: "A Ma" <pwrdrftr at hotmail.com>
> Subject: Re: [s-cars] S4/S6 brakes
> To: s-car-list at audifans.com
> Message-ID: <BAY2-F161fAMxUtDjTZ0001a1e7 at hotmail.com>
> Content-Type: text/plain; format=flowed
> 
> Changing out the rear pads shouldn't make the brakes feel that much 
> better 
> since the rear brakes don't do much in the whole scheme of things 
> though I 
> don't have any explanation as to why it does is your case. My advice 
> would 
> be a complete brake fluid flush after converting to braided 
> stainless steel 
> lines (I'll be doing this soon).
> 
> Alvin 93S4
> 
> >From: "Bill Clancy" <clancybill at yahoo.com>
> >To: "Bill Clancy" <clancybill at yahoo.com>, "Ian Duff" 
> ><iduff at rcn.com>,<s-car-list at audifans.com>
> >Subject: Re: [s-cars] S4/S6 brakes
> >Date: Sun, 16 May 2004 13:53:00 -0700
> >
> >After hitting send....
> >
> >What do you think about what I wrote regarding the rear pads?  If I 
> replace
> >them, the brakes feel great but only for a week.   Why is that?
> >
> >
> >----- Original Message -----
> >From: "Bill Clancy" <clancybill at yahoo.com>
> >To: "Ian Duff" <iduff at rcn.com>; <s-car-list at audifans.com>
> >Sent: Sunday, May 16, 2004 1:48 PM
> >Subject: Re: [s-cars] S4/S6 brakes
> >
> >
> > > thanks for the info.
> > >
> > > I'll get to work on it and see if I can improve the feel and 
> stopping
> >power.
> > >
> > > thanks, I'll let you know if I am successful.
> > > -Bill
> > >
> > > ----- Original Message -----
> > > From: "Ian Duff" <iduff at rcn.com>
> > > To: "'Bill Clancy'" <clancybill at yahoo.com>; 
> <s-car-list at audifans.com>
> > > Sent: Sunday, May 16, 2004 1:40 PM
> > > Subject: RE: [s-cars] S4/S6 brakes
> > >
> > >
> > > Ooh, another thought just after hitting "Send": The rubber brake 
> lines
> >might
> > > be bubbled and ready to let go. Your symptoms are similar to 
> symptoms I
> >had
> > > with air in the lines, and to symptoms another time just before 
> I burst 
> >a
> > > rear line. Please be sure to check the rubber lines both 
> visually and by
> > > feel to be sure there are no hernias on the brake lines.
> > > -Ian Duff.
> > > -----Original Message-----
> > > From: Ian Duff [mailto:iduff at rcn.com]
> > > Sent: Sunday, 16 May, 2004 4:36 PM
> > > To: 'Bill Clancy'; 's-car-list at audifans.com'
> > > Subject: RE: [s-cars] S4/S6 brakes
> > >
> > >
> > > Sounds like maybe some air in the lines. Pressure bleed out all 
> the 
> >stuff
> >in
> > > there, replacing it with something good like ATE or Motul. By 
> replacing 
> >by
> > > pressure bleed, you'll be pretty sure it's not the fluid, and it 
> won't
> >hurt
> > > to have all new fluid in there, to boot. HTH -Ian Duff. 
> -----Original
> > > Message-----
> > > From: s-car-list-bounces at audifans.com
> > > [mailto:s-car-list-bounces at audifans.com] On Behalf Of Bill 
> Clancy
> > > Sent: Sunday, 16 May, 2004 2:11 PM
> > > To: s-car-list at audifans.com
> > > Subject: [s-cars] S4/S6 brakes
> > >
> > >
> > >
> > > OK... I promise not to rant about the bad brakes.   But I would 
> like 
> >some
> > > help.
> > >
> > > I think my car has unusually bad brakes.   I am not looking for 
> brakes 
> >for
> > > the race track.  I just want ordinary brakes like I find in any 
> average
> >car.
> > >
> > > Here are the symtoms.
> > > Pedal feels muddy
> > > There seems to be a slight delay when applying the brakes 
> (occasionally
> > > almost causing me to rear someone) It takes extra pedal pressure 
> to stop
> >the
> > > car
> > >
> > > but...
> > > If I slam on the brakes, the anti-lock works (if needed) and the 
> car 
> >will
> > > stop just as well as any other car..using medium pedal 
> pressure.
> > >
> > > Other data points:
> > > Changing the front pads with new ones makes almost no difference 
> at all.
> > > Changing the rear pads will give me back great brakes, but only 
> for a 
> >week
> > > or so while they wear in.   Then I am left with shitty brakes 
> again.
> > >
> > > I almost feel like the master cylinder is defective.   maybe it 
> engages
> >the
> > > rear first and wears them out, leaving me with glazed rear 
> pads.
> > >
> > > Do any of the symptoms above sound familiar?   Is this what 
> others
> > > complained about leading to bigger calipers and rotors?
> > >