Flashing Coolant Light

[amalventano1@comcast.net (Allyn)]

you may have had the bubble all along, just now your coolant has gone down enough for the bubble to
be significant. the 'drill a couple of tine holes in the thermostat' and the 'fill the system from
the upper hose' trick seem to fare pretty well. i did the thermostat trick, and when i fill the
system i do the following procedure:
- fill as much as possible at reservoir (i dont do the hose yanking tricks).
- start engine.
- rev to 2500 rpm from under hood. you will notice a level drop, keep topping off reservoir. you
will notice bubbles coming from the overflow line. eventually this will turn into a stream of water
(a good thing). keep topping/reving. eventually you get to the point where letting off the throttle
makes the reservoir overflow. stop topping at this point and throw the cap on.
- the above should only take a minute or two. you dont want to start boiling water with that running
engine.
Al

Allyn Malventano, ETC(SS), USN
87 Rieger GTO Scirocco 16v (daily driver, 180k, rocco #6)
86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
86.5 Occo 16v Trailer (dotting 'i's across the country, rocco #8)
87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch, driveshafts, wheels :)

----- Original Message -----
From: "ATS - Patrick Bureau" <pbureau@attbi.com>
To: "Larry" <rocco16v@netzero.com>; "Allyn" <amalventano1@comcast.net>; "John Erickson"
<ranahan@charter.net>; <scirocco-l@scirocco.org>
Sent: Saturday, August 17, 2002 11:13 AM
Subject: RE: Flashing Coolant Light


> and what was the trick to get rid of this "pseudo air bubble" ??
>
> (my car has had this problem only about 2 weeks now, the coolant has not
> been changed in a few months (before cincy!)
> so the theory (for me at any case) is probably somethign else.
>
> -------------------------------------------------------
>     __  __________
>    /  |/_ __/ ___/ Patrick Bureau
>   //| | / / \__ \  1985 8v Prowler Orange "Beatrice"
>  / _  |/ / ___/ /  1985 8v Titian Red "Lucky"
> /_/ |_/_/ /____/   http://www.longcoeur.com/scirocco
>
> =>-----Original Message-----
> =>From: scirocco-l-admin@scirocco.org
> =>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Larry
> =>Sent: Saturday, August 17, 2002 9:57 AM
> =>To: Allyn; John Erickson; scirocco-l@scirocco.org
> =>Subject: Re: Flashing Coolant Light
> =>
> =>
> =>Al-
> =>  As the engine heats up, the coolant expands as much as the air.
> => In fact,
> =>the bubble will decrease in size since air is compressable and
> =>water is not.
> => I had this same problem (as John is experiencing) and was able to fix it
> =>quite easily (as a result of a suggestion that the Meze gave me).
> =>(Ah, the Meze.  He may not have the fastest, quickest,
> =>best-looking Scirocco
> =>in San Diego, but he sure has a brain in his head...)
> =>:)
> =>
> =>Larry
> =>
> =>> better check for air in the rest of your coolant system. this will allow
> =>the bubble to expand as
> =>> your engine warms up, tripping the sensor.
> =>> Al
> =>>
> =>> ----- Original Message -----
> =>> From: "John Erickson" <ranahan@charter.net>
> =>> To: <scirocco-l@scirocco.org>
> =>> Sent: Friday, August 16, 2002 2:01 PM
> =>> Subject: Flashing Coolant Light
> =>>
> =>>
> =>> > My coolant light (the one in the gauge) has started
> =>> > flashing at me on a pretty regular basis, but not all the
> =>> > time.  The Bentley appears to be fairly worthless in this
> =>> > area.  I have been unable to find the circuit (in the
> =>> > manual) that runs to the sensor in the top of the
> =>> > expansion tank.  I have replaced that sensor to no avail.
> =>> >  My next thought is to clean up the connectors on the
> =>> > instrument cluster, but since everything else works well,
> =>> > I have little hope here.
> =>> >
> =>> > Has anyone had any experience in this area?  I'm tempted
> =>> > to just disconnect the bulb, but would like to make an
> =>> > effort to fix it.
> =>> >
> =>> > TIA
> =>> > John.
> =>> > Long Beach.
> =>> >
> =>> > _______________________________________________
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> =>> > Scirocco-l@scirocco.org
> =>> > http://neubayern.net/mailman/listinfo/scirocco-l
> =>>
> =>>
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