[s-cars] Coolant flushing?

[LL - NY]

Nope, no advantage to switching back. If the system has been throughly wiped
of the blue stuff, why go back? Green stuff is a lot easier to find.

On Thu, Oct 8, 2009 at 10:03 AM, chris chambers <fastscirocco_2000 at yahoo.com
> wrote:

> I found this process interesting, did a little googling and found:
>
> http://www.dieselgiant.com/mercedes_citrus_flush.htm
> http://www.mbusaforums.com/forums/viewtopic.php?t=499
>
> It appears Brett knows what he speaks of.....
>
> Now I'm pondering doing this to my S6 and swtiching it over from da green
> stuff
> to the "proper" Audi?VW stuff. When I bought the car it had da green stuff,
> and it
> has been easy to stay with it, any benefit to changing?
>
>
> Chris
>
>
>
>
> ----- Original Message ----
> > From: LL - NY <larrycleung at gmail.com>
> > To: Brett Dikeman <brett.dikeman at gmail.com>
> > Cc: RI <chewy4000 at gmail.com>; s-car-list at audifans.com
> > Sent: Thu, October 8, 2009 8:22:44 AM
> > Subject: Re: [s-cars] Coolant flushing?
> >
> > Do have any referring documentation on this, or is this just what one
> dealer
> > guy told you?  Considering citrous stuff is quite likely acidic (mild,
> not
> > worried about corrosive abilities) and therefore is an electrolyte, I'd
> be
> > concerned about galvanic reactions during the "citrous" period. IF M-B
> has
> > truly endorsed this procedure, I'd assume that they've prescribed a
> specific
> > safe time for each stage, etc.
> >
> > On Wed, Oct 7, 2009 at 11:15 PM, Brett Dikeman wrote:
>  >
> > > On Wed, Oct 7, 2009 at 5:08 PM, RI wrote:
> > >
> > > > Is there a way to completely flush out the brown out of the system?
> > > > I changed the resevoir but some mud came back up.
> > >
> > > Do what the Mercedes guys swear by:
> > >
> > > -Buy a big bottle of Shout (or whatever low-suds detergent you can
> > > find- stain treaters are low-suds.)
> > > -Dump it in, add water, run up to temperature, let it sit for a few
> > > minutes, drain.  This gets rid of the grease/oil buildup.
> > > -Flush it COMPLETELY out.
> > > -Add citric to the system (can be purchased at a MB dealer, or
> > > possibly some commercial kitchen/restaurant supply stores) with
> > > distilled water.  This gets rid of (I think, Bob can tell you for
> > > sure) the coating that you get from the "green stuff", and any
> > > corrosion.
> > > -Run up to temperature
> > > -Flush completely
> > > -Fill with real Audi/Pentosin coolant (any color is OK) and distilled
> > > water.
> > >
> > > Since Shout and citric acid do not contain anything to lubricate the
> > > water pump, don't go for a long country drive with either in the
> > > system or leave the stuff in for hours.
> > >
> > > This is actually a MB-recommended procedure as part of every coolant
> > > change...
> > >
> > > Brett
> > > _______________________________________________
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