[s-cars] 1995 S6 front brakes (UK spec)

[LL - NY]

Hmmm. In this application, I'd go with synthetic ;-)

On 1/6/06, Tony Curran <tony.curran at sympatico.ca> wrote:
>
> May be put some of that Castrol grease on the disks, that'll stop the
> squeak. ;)
>
> Tony
> 96 S6
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Paul Heneghan
> Sent: January 6, 2006 11:52 AM
> To: s-car-list at audifans.com
> Subject: [s-cars] 1995 S6 front brakes (UK spec)
>
>
> Hello chaps (and happy new year).
>
> I had to do the brakes this week due to a shudder that was getting
> steadily worse.  The car has the 314mm ventilated discs and the twin
> piston callipers used by UK-spec S6s.  Both front disks had a large
> (25ms strip) heavily corroded section on the inner side near the outer
> edge.  Some of this corrosion had flaked off leaving a very rough
> surface which had chewed material off the pads.
>
> Replacing the disks wasn't that straightforward.  I tried to get the
> callipers off without dismantling them, which meant access to the 18mm
> bolts holding the callipers to the strut was very limited.  On one side
> the 18mm bolts holding the bracket to the strut were EXTREMELY tight -
> all the way.  With hindsight, I should have separated the two halves of
> the calliper from each other and from the bracket by undoing the two
> triple-square bolts.  Then everything is easier to get at, but you have
> the tricky job of hooking the rubber accordion seals for the three pins
> over the lips - you need to practise on one until you get the knack.
>
> I used Castrol LM grease on the pins.  Is that a no-no as far as the
> rubber seals are concerned.  I did it years ago on an old Audi 100, and
> the rubber boots seemed to survive.  Any BTDTs?
>
> I now have very nice firm progressive braking, with no judder.  BUT, I
> have a near constant squeak/scraping noise from the left brake.  Only at
> speeds above about 30mph, and the squeak doesn't change pitch with road
> speed.  It goes away when braking.
>
> I've never had squeaky brakes before on an Audi.  Any thoughts?
>
> Paul
> 1995 S6 Avant
> 1996 S6
>
>
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