1990 VOLKSWAGEN TRANSPORTER heating

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VEHICLE
CARE

COOLING
SYSTEM
The cooling system
is
sealed and gener­ ally requires little attention.
The cooling system has been filled at the factory with
a
permanent coolant which
does not need to be changed. The coolant

consists
of a
mixture
of
water
and the
manufacturer's coolant additive
G 11 —

antifreeze
on
glycol basis with anticorro-
sion additives (40% for USA
models;
50%
for Canadian models).
This
mixture
assures
the
necessary frost protection
and protects
the
entire cooling system
against corrosion and
scaling,
and raises
the boiling point of the coolant.
Do
not
reduce
the
concentration
of the

coolant
in the
summer
by
adding plain
water.
The coolant additive proportion
must
be at least
40%
but not more than

60%,
to
maintain the antifreeze protection
and the cooling efficiency. For year round driving, antifreeze is added
at the factory for temperatures down to:

-13°
F/-25°C(USA)

-40°
F/-40°
C
(Canada)

Only
use
quality phosphate-free
anti­

freeze containing ethylene glycol. Such antifreeze
is
available at
your
Volkswagen

dealer.

WARNING Antifreeze is poisonous. Always store antifreeze in its original container and

well
out of the reach of children. If you drain
the
coolant,
it must
be
caught
and

safely stored. Drained coolant should normally not be reused. Always des-

pose
of used coolant observing all en­
vironmental regulations.
Coolant losses
Coolant losses may indicate
a
leak in
the

cooling
system.
In
this
case,
the
cooling
system should
be
inspected immediately by
your
Volkswagen dealer.
It is not
suffi­

cient merely to add coolant.

In a
sealed system, losses can only occur
if
the
boiling point
of the
coolant
is ex­

ceeded as
a
result of overheating.
Overheating can occur
if:

•
the
flow
of air to the
radiator
is

obstructed
by
leaves, dust, insects
or by

additional
lights installed
in
front
of the
radiator grille;

•
the boiling point of the coolant has been
reduced
due to an
incorrect mixture
of

coolant and water;

•
the
radiator fan
is not
working
- see

"Radiator
fan",
or;

•
the vehicle is being driven up
a
long
hill
j

in
a
low gear with engine speed
very
high
and
at
very
high ambient temperature
-

see
"Radiator fan".

If
the cause for the overheating cannot
be

determined
and
corrected, contact
your

Volkswagen dealer immediately, other-
I
wise serious engine damage could result.

104
Always
heed
WARNING on page
97.


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VEHICLE CARE
Adding
coolant

Turn
off the
engine
and allow it to cool
down.

WARNING
Reduce the
risk
of scalding
from
hot

coolant
by
following
these
steps.
• If the cap
from
the expansion
tank

must
be
removed
wait
until
the
engine

has cooled down. The cooling system
is
under
pressure.
•
Protect
face, hands and
arms
by
covering the cap
with
a
large,
thick
rag
to
protect
against
escaping
fluid
and steam.
•
Carefully
and
slowly
turn
cap one

turn
to
allow
excess pressure to es­ cape
before
completely
removing
cap.

Top
up coolant in refill tank. Only when
cooling
system was drained or a lot of
cool­
ant needs to be added, also
fill
expansion
tank.

To
maintain the anti-corrosion properties of the coolant, the antifreeze concentra­
tion should not be reduced, even during
the warm
season.
Increasing
the
antifreeze
in the
coolant

to
more
than
60% is not
only
unecono­ mical, it is also
detrimental
to
engine

cooling.

Only
use quality phosphate-free anti­

freeze
containing ethylene glycol. Such antifreeze is available at your Volkswagen

dealer.

Antifreeze,
other
than
specified by Volks­
wagen,
may cause corrosion of the cool­ ing system,
leading
to
engine
over­

heating
and
damage.

Only
for topping-up coolant, a small amount of antifreeze containing ethylene

glycol
and phosphates may be
used,
if rec­
ommended antifreeze is not available.
• After adding coolant, run the engine at
idle speed for a few seconds.
• Wait for the radiator fan to switch on

and
off again.
• Check coolant level. Add more coolant
if necessary.

Do
not overfill the system.
Excess
coolant will be forced out through
the pressure relief valve in the reservoir
when the engine becomes hot.
Screw cap on
again
tightly.
Radiator
fan

The
electric radiator fan (located in
fror:
r the car behind grille) is controlled by !':
moswitches
from the coolant and enc
TE

compartment temperature.

After
turning
off the
engine,
the
radiate

fan can
continue
to run (up to 10 r>
nutes).
It may also suddenly
start
to rx

again
even
with
the
ignition
switched
c*

Notes
• If the radiator fan does not come c
when the coolant temperature is very high

check
the fuse and replace it if necessar, - see page 129.
• The speed of the radiator fan does nc

depend
on the engine
speed,
therefore
cooling
effect cannot be increased b.
downshifting. As long as the engine runs smoothly and driving an uphill road does
not considerably reduce
speed,
there is n:
need
to downshift.

Always
heed
WARNINGS
on
page
97.


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DO-IT-YOURSELF-SERVICE
Fuse arrangement No. Component Amp. No. Component Amp.
From left to right: 1
Radiator fan 30 17 Windshield wiperengine 10
2 Brake lights 10
18 Brake warning light,
3 Interior lights, illuminated heated driver's seat,
Make-up mirror, clock,
ciga­
cruise control system 10
rette lighter, radio 15 19 Turn signals 10
4 Emergency flasher system 15 20 Number plate light,
5 Vacant headlight washer
10
6 Vacant 21 Low beam left
10
7 Tail and side light left 10
22 Low beam right 10
8 Tail and side light right
10
9 High beam right 10
10 High beam left
10 Additional fuses
11 Windshield wipers and washer
15 (in separate holders)
12 Cruise control system
Air conditioner, power above the fuse box:
windows, auxiliary heater, Instrument lightning
10
electric outside mirrors, Overheating fuse for auxiliary heater
10
auxiliary heat exchanger, Main fuse for auxiliary heater
20
rear window wiper 20 Central locking 20
13 Fresh air fan
20 Automatic fuse for window lifter
20
14 Rear window heating, heated
rear view mirror, light for Color codes
15
16 lighting switch
Back-up lights
Double tone horn 20
10
15 10 Amp. fuses - red
15 Amp. fuses - blue
15
16 lighting switch
Back-up lights
Double tone horn 20
10
15 20 Amp. fuses - yellow
30 Amp. fuses - green
The number on the face of the fuse is the amperage rating.


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TECHNICAL
DESCRIPTION

EMISSION
CONTROL SYSTEM
In the
interest
of
clean
air Pollution of our environment has become

a
problem
that
is of increasing concern to
all of us. We urge you to
join
us in our ef­

forts
for cleaner air in controlling the pollu­
tants emitted from the automobile.

You
can make a significant contribution to
keeping our air clean by:
• Always using lead free gasoline.
• Not
letting
your vehicle idle
unnecessa­

rily.
• Following the recommended preven­
tive maintenance schedule contained in
the maintenance booklet.
• Not removing or altering the emission
control system.
• Taking the precautions described
below to prevent damage to the emission
control system in your vehicle.

Volkswagen
warrants the Emission
Con­
trol
System in your new vehicle under the
terms and conditions set
forth
in the War­ ranty booklet.

Your
Volkswagen is equipped
with
such a
system,
which contains the following major components.
Catalytic
converter

The catalytic converter is an efficient
"clean-up"
device
built
into
the exhaust system of the vehicle. The catalytic conver­
ter burns the undesirable pollutants in the exhaust gas before it is released
into
the
atmosphere.
The
exclusive
use of
unleaded
fuel
is cri­
tically
important
for the
life
of the
cataly­

tic
converter
and
proper
functioning
of
the
engine.

The
catalytic
converter
will
be
perma­
nently
damaged
by
•
exceeding
the "max"
marking
when

adding
engine
oil (see
page
99)
• push or tow
starting
your
vehicle

•
misfiring
of the
engine

•
turning
off the
ignition
while
the

vehicle
is
moving
or
•
other
unusual
operating
conditions. Do not
continue
to
operate
your
vehicle

under
these
conditions, as
otherwise

fuel
can
reach
the
catalytic
converter.

This could
result
in
overheating
of the
converter,
requiring
its
replacement.

For
maintenance intervals refer to your
Maintenance booklet.

Oxygen
Sensor (OXS)
The oxygen sensor, installed in the exhaust manifold, continuously
senses

the oxygen content of the exhaust and

signals
the information to an electronic
control
unit.

Carbon
canister

The vehicle is equipped
with
a carbon canister to prevent fuel vapor from
esca­
ping
into
the atmosphere.
The vapor is passed
into
the carbon canister, where it is retained when the
engine is turned off. When the engine is running, a valve allows air
into
the canister,
and the fuel vapor is passed to the engine
for combustion.
The system does not require any main­
tenance.

144


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TECHNICAL
DESCRIPTION

To
assure
efficient
operation
of
the
Emis­
sion
Control
System:

•
Have
your
vehicle maintained pro­
perly and in accordance
with
the ser­
vice recommendations as described in
your
Maintenance booklet. Lack of
proper maintenance as
well
as im­
proper use of the vehicle
will
impair
the function of the emission control
system
and
could
lead
to
damage.

•
Do not alter or remove any compo­
nent of the Emission Control System

unless
approved
by
the
manufacturer.

•
Do not alter or remove any device,

such
as heat shields, switches, ignition
wires, valves, which are designed to protect
your
vehicle's emission control

system.

•
Do not continue to operate
your

vehicle if you detect engine misfire or
other
unusual
operating conditions. WARNING
Starting
Do
not leave engine idling unatten­

ded
after starting. If warning lights should come on to indicate improper

operation,
they would go unheeded. Extended idling also produces heat,
which could result in overheating
or other
damage
to
the
vehicle
or
other
property.

Parking
•
Do
not
park
or
operate
the
vehicle
in

areas
where the hot exhaust system
may
come in contact
with
dry grass,

brush,
fuel spill or other material,
which
can
cause
a
fire.
Undercoating

Do
not apply additional undercoating
or rustproofing on or
near
the
exhaust
manifold,
exhaust
pipes,
catalytic
con­

verter
or heat shields. During driving,
the substance used for undercoating
could
overheat
and
cause
a
fire.


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ALPHABETICAL
INDEX

page

Accessories
122

Air
cleaner 103

Air
Conditioner 54 All-wheel-drive 75
Alternator warning
light
44

Ashtrays
64
Assist
handles and coat hooks ... 67
Automatic safety belts 14
Automatic Transmission 35
Automatic Transmission Fluid .... 102 Auxiliary Heater 57, 60
Battery 109
Battery charging 110

Brake
fluid reservoir 108

Brake
warning
light
43
Brakes
29

Break-in
period 69

Bulb
chart 130

Bulb
replacing 130
Buzzer
7,35

Capacities
147

Catalytic
converter 144

Central
locking system 8
Cigarette lighter 63
Child
safety 15

Chime
7,35

Cleaning
products 89

Climate
controls 51
Clock
41 page

Coolant
temperature gauge .... 41

Cooling
system 104

Consumer
information 152
Corrosion
protection 94

Cruise
control 49

Curtains
27

Cup
holder 66

Dashboard
4

Data
146
Defogging/defrosting 52 Differential lock 33

Dimensions
148
Do-it-yourself service 123

Doors
9

Economically
driving 72

Electric
windows 12

Emergency
equipment 70
Emergency
flasher 46

Emergency
starting 136

Emergency
towing 138

Emission
Control System 144
Engine
code letter 151

Engine
compartment lid 97

Engine
cooling 41,104
Engine
exhaust 144

Engine
number 151

Engine
oil changing 100
pace

Engine
oil checking 9?

Engine
oil grades 9E

Expansion
tank 105

Fan
41, 10c

Folding
table 65

Foreign
country driving 120 Front seats 20

Fuel
economy 72

Fuel
gauge 42
Fuel
injection 142

Fuel
supply 86

Fuel
tank 85

Fuses
12E

Gas
Station
Information
156

Gasoline
additives 86
Gearshift lever 32

Glove
compartment 64
Headlight dimmer and flasher .... 48 Headlights 13C
Headlight adjustment 134
Headlight switch 46

Head
restraints 19 HeatingA/entilation 51
High beam 45,48
Horn 4
Identification label and number ... 151
Ignition/steering lock 38
Indicator lights 43


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ALPHABETICAL
INDEX

page

Technical
description 141
Temperature gauge 41 Tire specifications 117

Tires
114

Tools
123
Towing 138
Trailer towing 73
Trailer weights 150

Transmission
oil 102
Trip odometer 40
Turn signal/headlight dimmer switch lever 48
Undercoating 94

Unleaded
fuel 85
Vanity mirror 67
V-belt 107,147

Vehicle
care 85

Vehicle
identification number/label 151

Vehicle
operation 69
Ventilation/heating 51 page

Washer
jets
adjusting 112
Washer
reservoir 112
Water temperature gauge 41
Water temperature warning
light
41
Weights 150
Wheels
114

Wheel
changing 125
Windows 12
Windshield washer
fluid
container 112
Windshield wiper/washer lever ... 50
Winter operation Battery 110

Cooling
system 107

Engine
oil 98

Snow
chains 119
Snow
tires 118

Vehicle
care 90
Windows 91
Windshield washer container ... 112
Wiper blades 113
Warning and indicator
light
symbols 6
Warning lights 43
160 Warranty booklet 2


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