[V6-12v] Gear oil, brake job

[Clive Young]

Tom

 I just finished my rear brakes and you need a tool . The pistons have to be
essentially screwed back in . There are two notches in the rear caliper
piston. A few guys have manufactured tools with big needle nose pliers and
the such, but a LOT of leverage is required in some cases.

The tool I loaned from my parts supply store is generic and not particular
to Audi. Just about all  cars it seems now use this system.

This  is basically a piece of steel that sits on the outboard pad caliper
area that has a threaded hole in it. A big ass threaded rod goes through
ther that you screw in. on the end of the rod is a disk with the two "nubs"
on the end that fit your caliper. As you screw the rod in the piston turns
in and pushes against the steel plate on the outside of the caliper. It is a
GREAT tool and I did botth calipers in less than 5 minutes. Interesting to
note my car has 240k on it withits first rear repair. I had to turn the
screwed rod with a 17mm wrench and it was so damn tight I was convinced it
was seized, but as soon as it moved I could have screwed it in by hand.
Amazing really.

Oh a word of warning to the uninitiated . I am not sure how audi does the
hydraulics but to be on the safe side make sure you put a block of wood
inside the caliper after pushing back the piston. So that when you are doing
the opposite side you do not push out the one you just did and end up with
the piston lying on the floor ( very bad and embarrasing )

Clive
----- Original Message ----- 
From: "Tom Christiansen" <tomchr at ee.washington.edu>
To: <getur at optonline.net>
Cc: "Audi list" <v6-12v at audifans.com>
Sent: Saturday, March 20, 2004 9:17 PM
Subject: [V6-12v] Gear oil, brake job


> Folks,
>
> Now that we're talking anyway...
>
> In the manual for my 1994 90S it is stated that the transmission oil
> should not be changed during the lifetime of the car. Do you guys agree
> with this philosophy? If not, which fluid/oil do you suggest instead and
> which benefits does it have to change the gear oil? Which tools are
> needed?
>
> When doing the rear brakes, I've heard that the caliper piston needs to
> be screwed back into the caliper. Apparently it can't be pushed straight
> in. Does anyone know which tool is needed for this operation?
>
> Thanks,
>
> Tom
>
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