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Re: Audi 5000 Question. 85?
> >James Steele wrote:
> > I'm not sure on how independent the steering circuit is from the
> >braking system, but I followed the steps spelled out in the Bentley
Oh, I was the one that wrote that.
> The hydraulic and braking systems are separate.
> The hydraulic system consists of a single reservoir (the cylindrical one)
> serving both the brake and steering boost sub-systems.
This was the part I'm not sure about- would air in the hydraulic brake
sub-system travel to the steering sub-system, due to the common reservoir?
> The steering
> subsystem consists of a hydraulic pump and the steering rack. The brake
> boost subsystem consists of a hydraulic pump (in the same enclosure as the
> steering boost pump, a pressure accumulator, and a power booster. The
> booster (or whatever Audi calls it) is connected _mechanically_ to the brake
> master cylinder. From the master cylinder on, the brake system is
> conventional VW/Audi, and uses normal DOT 3/4 fluid.
> BTW, the brake fluid
> reservoir (the rectangular one) also supplies brake fluid to the hydraulic
> clutch circuit on cars with a do it yourself shifter (i.e., fluid for
> hydraulic actuation of the clutch when you press the pedal).
My realization of this came when my master clutch cylinder semi-failed and
I hit myself for not changing its brake fluid when doing the preventive
bleeding of the brake lines. I hit myself harder when I found that the
supply hose is at the top-most portion of the (rectangular) reservoir
because I usually top it off with the car on the driveway (not level).
I guess it was designed that way- I wouldn't want a leak in the clutch
hydraulics to compromise my braking.
I normally don't knock myself so bad- relatively speaking, the master
cylinder replacement is a simple series of steps. But I found under-dash
work a real pain. The contortionist kind of pain (ouch).
> 86 5000S
-- Eddi Jew
'86 5000S with (obvious from above) a do it yourself shifter