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why, in 1988, did VW put a rubber seal at this
body gap, thus blocking all airflow through it?
The flow through ventilation scheme completely
changed and improved in 1988. This change
coincided with the introduction of the switch from
chrome (or black) steel bumpers to the fiberglass
gbig bumpersh and the accompanying front
spoiler. In 1988 the rear-most side windows
have an added vent along the rear edge. It was
necessary to shorten the glass in order to make
room for this vent as the opening in the body
stayed the same. These vents are air EXIT vents.
Interestingly, the little grills on the front door panels
remained, but if you remove them you will see
the passageway behind them is sealed, and there
is no blue slide lever. The seal at the door gap
area was put there probably for reduced noise. I
installed these seals on my 1987 Vanagon, and
added the rear vents too. It actually lowered the
wind noise a little, and the rear vents improved
air flow inside the vehicle, especially for the rear
passengers. And now I have the best of both
worlds: improved flow-through ventilation and cool
air from the dash vents! You can say you knew me
when I was nobodyc
Air Conditioning in Vanagons:
OK, so what about AC. Factory installed air
conditioning in Vanagons is a completely separate
system than the fresh air system. All air-conditioned
air is RECIRCULATED air. That is, all the air that
is cooled is air that is scooped up from inside the
vehicle, cooled, and re-circulated back inside the
vehicle. It does not work like most other vehicles
where one can choose OUTSIDE or INSIDE air
to be cooled. There were two different factory
installed AC systems for non pop-top Vanagons,
and two for pop-tops.
Vano non pop-top factory A/C
1980-1984: On early non pop top Vanagons up
to about 1984, the air conditioning ducting was a
plastic monstrosity that came up the driverfs side of
the vehicle just behind the driverfs front door, and
up over the across the ceiling to the passenger
side. The evaporator (the heat exchanger that
converts warm air to cold) was inside this section.
Right above the isle way there was a gTh, and
ducting ran forward between the driver and
passenger to windshield to another gTh, and then
side to side. This system worked OK.
1985-1991: Starting in 1985, the evaporator
was moved all the way to the back, running side
to side just in front of the rear window. A duct
similar to the early systems ran side to side up
front above the rear-view mirror where the A/C
control knobs were located. A long duct ran down
the middle of the ceiling back to the evaporator
housing. This system was awesome, and kept the
interior of even dark colored Vanagons cool, even
in ambient temperatures of well over 100 deg F.
Pop-top Vanagon factory A/C
1984-1986: On these year models, the air
conditioning evaporator was located inside what
would normally be the rear cabinet above the rear
seat. Instead of the little cabinet door that flips
down there was a grill assembly installed. This
system did not work very well.
1987-1991: Factory A/C was improved in
1987, which coincided with the switch in the
campers from a tan colored interior to gray. On
87-91 pop-top Vanagons without A/C, the rear
cabinet was the same shape and size as the 80-
86. With factory A/C, the entire rear cabinet
assembly changed. Whereas the pre-87 system
was basically a converted cabinet, the new system
had an additional duct assembly that came right
up to the edge of the rear ceiling, thus getting
much closer to the front passengers. This system
also used a larger evaporator and evaporator
fans, a larger condenser with a more powerful
radiator fan, and a larger A/C compressor (7cylinder instead of 5 cylinder). This system worked
OK, but still was nothing to write home about. The
people in the back seat would be deafened from
the roar of the more powerful evaporator fans,
and frozen solid from the increased airflow. The
folks in the front seat by comparison would be
barely comfortable. However, this system when
operating properly will keep the interior cool,
and is fine for two people traveling in the FRONT
seats.
Vanagon aftermarket or gDealer
Installedh A/C
There was another A/C system available for the
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