[Vwdiesel] Fw: Cooling system flushing

[Pablo Moretti]

Be careful to read the instructions, a friend of mine left the cleaner that
was for ten minutes, for a week, because he thought it´ll work better, and
the head gasket broke cause of that. I think Liqui-Moly is a good one, I´ve
used it with no issues, in the same situation as you.

On Tue, Nov 16, 2010 at 4:45 AM, Arkady Mirvis <arkadymirvis at gmail.com>wrote:

> Accoirding to manufacturer's instructions coolant must be changed every 2
> years. During this period the engine metal is protected by the coolant
> additives. Regular coolant change will prevent corrosion and when drained
> will take with it impurities. Flushing never will be needed.
> My german mentor Andreas Hagedorn Maximilian Gerold ( inspector at MB ) who
> does engines rebuild and is an excellent tuner, did show me aluminum engine
> heads with no corrosion visible in engines over 10 years old. All to good
> maintenance.
> ----- Original Message -----
> From: "Tad" <tadc at europa.com>
> To: "Rudy" <petersenrudy at hotmail.com>
> Cc: <vwdiesel at vwfans.com>
> Sent: Monday, November 15, 2010 10:32 PM
> Subject: Re: [Vwdiesel] Cooling system flushing
>
>
> > I've never heard of using anything but plain water for the job.
> > Considering
> > that the "stuff" you want to flush is likely corrosion products of
> > iron/aluminum, I wouldn't expect a grease cutter to do much good... but I
> > guess a detergent would help to suspend the particles so the water can
> > flush
> > them out, but I'd be concerned about the residue interacting with the new
> > coolant... but  then what do I know?
> >
> > On that subject (and sorry if this is a thread hijack), but I often
> wonder
> > about the "lifetime" coolant (G12) in my 01 TDI.  Just how long is a
> > "lifetime" anyway?  I know that some portion of the coolant (and
> therefore
> > additives) have been renewed when for example my T-belt was changed, but
> > my
> > car has never had it's coolant fully flushed/exchanged in it's lifetime.
> > I've heard some people recommend 100k, but I doubt that's based on any
> > real-world evidence.
> >
> > I just did a bit of googling on the subject and found one guy saying that
> > the main concern is buildup of acid in the coolant, and all you need to
> do
> > is test the PH and adjust (with BG Cooling System Conditioner according
> to
> > him).
> >
> > On Mon, Nov 15, 2010 at 1:43 PM, Rudy <petersenrudy at hotmail.com> wrote:
> >
> >> Anyone have any Tricks or ideas on what is the best detergent for the
> >> job?
> >> Think it would be ok to use a heavy duty, mix with water, Grease cutter?
> >>
> >> Rudy
> >>
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