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#1: Heater core problem- '92 Golf

Posted on 2006-07-22 03:02:10 by Garry Tarr

I just finished installing a brand new VW heater core on my '92 Golf.
I filled the system with new G11, fired it up, and was delighted to
have no more leaks and smell of coolant in the passenger compartment.
But... a few minutes later I was less delighted to find I had no heat!
A quick inspection showed the inlet pipe to the heater core was too hot
to touch, while the outlet pipe was barely warm. It sure looks like
the core is clogged. Is it possible that the heater core could have
been plugged in manufacturing? Could I have damaged it enough during
installation to completely plug it? Is there some temporary seal I
should have removed? If anyone else has had this problem, I'd sure
appreciate some advice!

Thanks in advance,

Garry

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#2: Re: Heater core problem- '92 Golf

Posted on 2006-07-22 08:07:33 by Lambert Moonen

Is there no recall on these heatercores from V.W.?? It happened to me with
1988 Fox
get recal notes every 6 months
got to go in one of these days
mine blew to. years ago live in Los Angeles don't need Heat
that mutch moony.
&lt;<a href="mailto:ngt&#64;doe.carleton.ca" target="_blank">ngt&#64;doe.carleton.ca</a>&gt; wrote in message
news:<a href="mailto:1153530130.862417.122890&#64;i3g2000cwc.googlegroups.com..." target="_blank">1153530130.862417.122890&#64;i3g2000cwc.googlegroups.com...</a>
&gt;I just finished installing a brand new VW heater core on my '92 Golf.
&gt; I filled the system with new G11, fired it up, and was delighted to
&gt; have no more leaks and smell of coolant in the passenger compartment.
&gt; But... a few minutes later I was less delighted to find I had no heat!
&gt; A quick inspection showed the inlet pipe to the heater core was too hot
&gt; to touch, while the outlet pipe was barely warm. It sure looks like
&gt; the core is clogged. Is it possible that the heater core could have
&gt; been plugged in manufacturing? Could I have damaged it enough during
&gt; installation to completely plug it? Is there some temporary seal I
&gt; should have removed? If anyone else has had this problem, I'd sure
&gt; appreciate some advice!
&gt;
&gt; Thanks in advance,
&gt;
&gt; Garry
&gt;

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#3: Re: Heater core problem- '92 Golf

Posted on 2006-07-22 13:50:39 by E

Good chance that the core itself is air locked, this is probably more
likely then the core being plugged. When I replaced mine a few years
ago (90 golf) I filled the core with fluid before I hooked up the final
hose, and then filled the system after.

With the car cold, try taking squeezing the flexable hoses, it might be
able to move the fluid into the core, if its working you will see the
level drop at the coolent bottle. The other choice is a bit more work,
drain your coolent again and try filling the core first.

good luck.

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#4: Re: Heater core problem- '92 Golf

Posted on 2006-07-22 18:46:51 by Garry Tarr

Well, it looks like the air lock explanation was correct. After the
car sat overnight, the coolant level in the reservoir had dropped a
bit, and when I took it for a spin around the block there was enough
heat to cook an egg. I guess the coolant was just slowly trickling
into the core overnight.

The archives for this group imply that heater core defects were
epidemic on A2s, and VW seems to have had many recalls for this
problem. When I asked the local VW dealer if I could get a free heater
core, they said they would have to install it themselves. Since I
didn't particularly want their mechanics poking around in my car
looking for other things to fix to cover their costs, I decided to do
it myself. The job was fiddly and time consuming, but not particularly
difficult.

Thanks for the suggestions everyone.

Garry




<a href="mailto:ngt&#64;doe.carleton.ca" target="_blank">ngt&#64;doe.carleton.ca</a> wrote:
&gt; I just finished installing a brand new VW heater core on my '92 Golf.
&gt; I filled the system with new G11, fired it up, and was delighted to
&gt; have no more leaks and smell of coolant in the passenger compartment.
&gt; But... a few minutes later I was less delighted to find I had no heat!
&gt; A quick inspection showed the inlet pipe to the heater core was too hot
&gt; to touch, while the outlet pipe was barely warm. It sure looks like
&gt; the core is clogged. Is it possible that the heater core could have
&gt; been plugged in manufacturing? Could I have damaged it enough during
&gt; installation to completely plug it? Is there some temporary seal I
&gt; should have removed? If anyone else has had this problem, I'd sure
&gt; appreciate some advice!
&gt;
&gt; Thanks in advance,
&gt;
&gt; Garry

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#5: Re: Heater core problem- '92 Golf

Posted on 2006-07-23 17:06:58 by E

Don't knock the VW dealership too hard, some of them are pretty decent.
I took my 90 golf into Bank Street VW here in Ottawa 2 years ago for
an emmissions dianostic and they informed me there was an outstanding
recall on my heat deflector on the exhaust (warm air intake sheild) and
that they would like to take care of it while it was in for the
diagnostic. They replaced the head gasket, valve cover gasket head
bolts and put in new valve cover posts in the process, no charge. They
said there was nothing wrong with them if they had been left alone, and
because they to remove them (or unscrew them) to do the job, they were
cover under the recall. They provided me with a list of other things
they noticed needed fixing in the engine area without actually fixing
them. The guy said they were easy to fix if you work on the car
yourself and because of they age of the car, wanted to leave them for
me to decide if I wanted to fix them myself or have them do it.

I have been to other dealers where the try to stiff you, but Bank
Street and Bytek on St. Laurent (Ottawa) both seem very helpful and
straight.

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