Brake flushing

Bernie Benz b.benz at
Tue Dec 13 11:52:50 EST 2005

> From: Adam Gratz <adamgratz at>
> Date: Mon, 12 Dec 2005 21:15:06 -1000
> To: 200q20v at
> Subject: Brake flushing
> A note on brakes and Biennial flushing:
> I ran my BMW 2002tii for 11 years with silicon brake fluid (concept stolen
> from the motorcycle racer I used to work for) and *never flushed anything*.
> I understand that the reason systems need flushing is to remove the water
> that the petroleum based fluids naturally absorb. I flushed out the system
> with brake cleaner and then with the silicon fluid (not cheap) then bled it
> as usual. I really drove the holly hell out of tha car, and never heard any
> complaints from the brakes, no fade stick or otherwise. The injection pump,
> was another story....
> I'm tempted to do this with the 20v since the humidity is so great here in
> Hawaii.
> Thoughts?
I have used DOT 5 in several pre ABS cars.  I was lead to believe that it is
some of the Audi ABS components that are not compatable with Si fluid?  It
is not hydroscopic, nor cheap.  If I were you on the Big Island, I would
just flush annually with the cheaper DOT 4.  Brakes need an annual
inspection anyway.


> Dr.G
> Message: 3
> Date: Mon, 12 Dec 2005 14:38:03 -0800
> From: Bernie Benz <b.benz at>
> Subject: Re: Brake problem
> To: <SuffolkD at>
> Cc: 200q20V mailing list <200q20v at>
> Message-ID: <BFC33BCA.38DD%b.benz at>
> Content-Type: text/plain; charset="US-ASCII"
> Scott,
> Flushing will not desludge nor free up frozen or sluggish calipers or MCs,
> requires disassembly and cleaning after which bieannial  flushing will
> maintain the condition.  "New" used cars always deserve this as a first
> priority.
> I never criticize other's spelling as I am the world's worst, even with a
> spell checker.
> Bernie
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