RE: Pentosin flush

[Aleksander Mierzwa <alex@matrix.com.pl>]

Ed wrote:

	>Picked up on recent posts about flushing Pentosin and fixing
warnings. 
	>Here's my experience...

	>Wasn't sure which "return" line to unhook.  Looked in Bentley,
surmised
	>from comment about jacking car up and diagrams in Bentley that
the hose
	>from the pump to the bomb was the one.  I disconnected that one
and got
	>about two drips.
	>[...]
	>Should I have had fluid running out of the hose I disconnected?
	>Did I disconnect the right hose?

I guess you should disconnect the bomb to reservoir hose. It is
connected to the bottom of the reservoir, so disconnecting it is an easy
way to drain the fluid.

	>Which warning are we talking about here?
	>The warning I'm talking about is the brake pad wear warning (O)
in the
	>AutoCheck display.  The owner's manual indicates this warning
is also
	>indicative of hydraulic pressure problems.  

Are you sure? On 5Ks the "(O)" warning light is only for brake pads. The
"brake" warning informs of low brake fluid level, low pentosin level and
low hydraulic pressure. I doubt if Audi changed the meaning of these
lights on newer cars.

	>The red rectangular BRAKE
	>warning flashes when I hit the pedal once quickly, will stay on
if I pump
	>the pedal half a dozen times with engine at idle, a few more
with engine
	>at higher rpm.  One or two pumps is all it takes to get a hard
pedal
	>after engine shutdown.

Sorry, but these are exact symptoms of a dead bomb :-(

Aleksander Mierzwa
Warsaw, Poland
mailto:alex@matrix.com.pl
87 Audi 5000CS turbo (mine)
88 Renault Medallion wagon (mom's)
91 mountain bike (just in case both cars broke at the same time :-)