Rear calipers on A6 Quattro

I'm replacing the rear pads on the above vehicle. Right rear was changed
effortlessly other than having to make a tool to retract the caliper. On
the left one I've trid to retract it hundreds of revolutions plus using a
large c clamp. I assume somethings frozen inside. Tiome to buy a new
caliper?

Also can anyone tell me where the brake pressue regulator is on this car,
a Quattro wagon 1996. The shop manual (CD by Bentley Publising. POS in my
opinion)says its on the left trapizodial arm. I've looked all over the
left and right without seeing it. Perhaps its only on somr models.
Enlightenment please.

Roger

"ramjet44" wrote in message

> I'm replacing the rear pads on the above vehicle. Right rear was changed
> effortlessly other than having to make a tool to retract the caliper. On
> the left one I've trid to retract it hundreds of revolutions plus using a
> large c clamp. I assume somethings frozen inside. Tiome to buy a new
> caliper?
>
> Also can anyone tell me where the brake pressue regulator is on this car,
> a Quattro wagon 1996. The shop manual (CD by Bentley Publising. POS in my
> opinion)says its on the left trapizodial arm. I've looked all over the
> left and right without seeing it. Perhaps its only on somr models.
> Enlightenment please.
>
> Roger
>

Regulator is electronic most probably.\
Calipers is turn and push, only turning doesn't do the trick.

Ronald