Looks like the way do do this is to unbolt the rear seat.  Don't have
to completely remove it, just unbolt it from the sides so the front
crossbar can be lifted to clear the heater box.  Then tip the box up
at the rear while sliding it forward.

Now that I have the core uncovered, I see no evidence of leaking but
the antifreeze smell was unmistakable last time I ran the blower.

I assume if I take the core to a radiatator shop they can determine if
it's leaking -- or is there a better next step?  I saw a couple of
mentions of O-rings here and there....

Allan

Allan Streib <streib@cs.indiana.edu> writes:

> I am attempting to remove the rear heater, but can't quite figure
> out how to remove the plastic cover.  I have removed the screws, but
> can't see how to clear the short air duct on the front side.
>
> Earlier this year when I tried to use that heater it filled the
> cabin with the unmistakable smell of antifreeze.  So I assume that
> either the core or the valve is leaking.
>
> Allan

--
1991 Vanagon GL