On 12/12/14, Don Hanson <dhanson928@gmail.com> wrote:

> So those VW engineers "intended" the blinking coolant light to first induce
> a skeptical doubt, and after the driver checks the truth of the light, a
> sense of awe that it actually did indicate low coolant ?  Or, did they
> intend to waste our time trying to keep that blinking light behaving?  They
> did accomplish both, I think.  I know I wasted a bit of time on it, too.

Hi Don.

Well, conspiracy theories aside, < grin >, I guess my answer is "no".
Granted, my experience level is less than some Vanagon owning and-or
wrenching folks but IMO and experience, if the low coolant warning
light and related components are in proper working condition, that
warning light system works just as the VW engineers intended. Though
there was a learning curve in terms of installing this system on an
air cooled Vanagon, the time I've actually spent on fixing the issue
has been minimal and for me, not a waste of time; this warning system
(and some help from Jason Newton) pointed me to the wear and tear at
the coolant expansion tank. Nothing replaces looking at fluid levels
and the leak was VERY slow, but in theory, that warning light could
have saved my engine.

This is somewhat OT, but I've recently been looking at and reading
about vintage stereo receivers. It seems that electrolytic capacitors
start to "leak". Due in part to age? "Cap" replacement is common on
these vintage receivers. Not sure if this is exactly what's happening
with the Vanagon temp gauge cap but along with other more knowledgable
peoples' comments, the capacitor in the Vanagon coolant temp gauge
doesn't seem to exempt from this type of normal wear and tear. Not
saying this is the only cause of a flaky coolant warning light. But
maybe it's something we'll see more of in the coming years?

Neil.

--
Neil n

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