[s-cars] Brake Light Indicator and Bomb - clarification

[Fred Munro]

Joe;

The system is relatively easy to flush. Pump the brake to discharge the
bomb. Remove the rubber discharge hose from the nipple on the back of the
bomb; this will drain the reservoir. Crank the wheels lock to lock a couple
times (without running the engine of course :)to empty the rack. Pull the
screen out of the reservoir and clean it. Clean the black crud out of the
reservoir. If you want to be extra thorough, blow the oil out of the "oil
cooler" tubing with compressed air. Put it all back together, add fresh
fluid, and bleed the system (turn the wheels lock to lock a couple times -
with the engine running, of course).

If your fluid continues to get dirty, you likely have a pressure hose that
is delaminating internally. That is the usual source of the black crud in
these systems.

I put together a flushing how-to. I'll send you a copy.

HTH

Fred Munro
'94 S4


-----Original Message-----
From: s-car-list-bounces+munrof=sympatico.ca at audifans.com
[mailto:s-car-list-bounces+munrof=sympatico.ca at audifans.com]On Behalf Of
Joe Petersack
Sent: August 9, 2005 10:43 AM
To: s-car-list at audifans.com
Subject: [s-cars] Brake Light Indicator and Bomb - clarification


re: my previous message.  The brake light usually stays on for about
15 seconds after sitting overnight.  Once started, all is OK.  Before
the last bomb change, the brake pedal would get firm after just a few
hours of sitting (and the brake light would stay on for perhaps 30
seconds).  Currently pedal is OK after overnight.
So, is there a good way to flush system to get rid of crud/contamination?
Joe


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