1990 VOLKSWAGEN TRANSPORTER ECU

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iLER TOWING
VEHICLE OPERATION
phLT .'jlkswagen was primarily designed
pr : assenger transportation. If you plan to
m*
B.
trailer you should be mindful that

MLT
:ar will be performing a service it was
•cr "tended for. The additional load will
Wee durability and economy of per-
m~ ance. • :. :ow a trailer, your Volkswagen may
mc. -9 more frequent maintenance due to
ft* extra
load.

Gc not tow a trailer during the break-in kriod of your vehicle.
Keep an eye on your coolant tempera-
fere gauge. If coolant temperature warn- rc light comes on pull off the road to a sa's place to allow engine to cool down.
Maximum trailer weight
A vailer for your vehicle is limited to a
typi-

ca class I trailer. The maximum gross
Bier weight and the tongue load must not
eoeed the specifications listed in the
[fechnical Information/Data section of this
ranual.

Do not exceed the gross vehicle weight
•rhich is the weight of the driver, passen­ ger, luggage, trailer hitch and tongue
weight of the loaded trailer. Trailer hitch
Use a weight-carrying hitch conforming to
the gross trailer weight. The hitch must be suitable for your vehicle and trailer and
securely bolted to the body. Always check
with the trailer hitch manufacturer to make
sure that you are using the correct hitch. Do not use a bumper hitch.
The hitch must be installed in a way not to interfere with the impact-absorbing
bumper system. No modifications should
be made to the vehicle exhaust and brake
systems. From time to time check that all hitch mounting bolts remain securely fas­

tened.

If not towing a trailer for a long period of

time,
remove the trailer hitch. This pre­
vents the hitch from causing damage should your vehicle be struck from behind.
When removing the trailer hitch, seal all bolt holes to prevent water and exhaust
fumes from entering the vehicle.
Trailer brakes If your trailer is equipped with a braking

system,
check to be sure that it conforms
to all regulations.
The trailer brake system must not be di­ rectly connected to the vehicle's brake sys­

tem.
Tire pressure
When towing a trailer, inflate the tires of
your vehicle to the cold tire pressure listed on the label on the left front door jamb. In­
flate trailer tires to trailer and tire manufac­
turer's specifications.
Safety chains
Always use safety chains between your car and trailer.
Trailer lights
Trailer lights must meet all regulations. Do not connect the trailer light system directly
to the light system of your vehicle. Be sure
to check with your Volkswagen dealer for
correct wiring, switches and relays.
Before you tow a trailer
Correct and even load distribution. All ob­
jects inside the trailer should be held securely in place to guard against shifting, be it forward, backward or sideways.
Never allow a passenger in a moving
trailer.


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VEHICLE CARE

Important
Consideration
for you and your car:

A
thorough and detailed preventive maintenance schedule has been de­

veloped
for your vehicle, which if followed

should
help assure you of years of reliable

and
dependable use. We strongly urge
you to give your dealer the opportunity to perform all scheduled maintenance and

necessary
repairs. He has the facilities,
original parts and trained specialists to
keep
your car running properly.

The
increasing use of electronics, sophisti­
cated
fuel injection and emission control

systems
together
with
the generally in­

creasing
technical complexity of today's automobiles has steadily reduced the

scope
of maintenance and repairs which

can
be carried out by vehicle owners.
Maintenance,
adjustments and repairs

usually
require special tools, testing de­

vices
and other equipment by specially
trained workshop personnel in order to as­
sure
proper performance, reliability and
safety of the vehicle and its many
sys­

tems.
Improper maintenance, adjust­ ments and repairs can impair the opera­
tion and reliability of your car and even
void your vehicle warranty. Above all oper­ ational safety can be adversely affected
creating unnecessary risks for vehicle oc­
cupants and others.
This
section describes a limited number of

procedures
which can be performed upon
your vehicle
with
ordinary tools, should the
need
arise and trained personnel be un­

available.
Before performing any of these

procedures,
always thoroughly read all of
the applicable
text
and carefully follow the instructions given. Always rigorously ob­

serve
the
WARNINGS
provided.

WARNING
Serious personal
injury
may occur as a
result
of
improperly
performed
main­

tenance,
adjustments
or
repairs.

• The
engine
compartment
of any

motor
vehicle
is a
potentially
hazard­
ous
area.

• Do not
attempt
any of the
mainten­

ance, checks or
repairs
described on
the
following
pages if you are not
fully

familiar
with
these
or
other
procedures

with
respect
to the vehicle, or are un­

certain
as to how to proceed.
Have
the necessary
work
done
by your Volks­

wagen
dealer
or any
other
properly
equipped
and
qualified
workshop.
•
Always support
your
vehicle
with

safety
stands if it is necessary to
work

underneath
the vehicle. The
jack

supplied
with
the
vehicle
is not

adequate
for
this
purpose. • If you
must
work
underneath
the . =-

hide
without
safety
stands but
with
t--t

wheels
on the ground,
always
ma-: sure the
vehicle
is on
level
ground, tr:
the
wheels
are
always
securely bloc ed and
that
the
engine
cannot
•

started.
Always
remove
the
ignitio-
key.
•
Always
be
extremely
careful
whe-

working
on the vehicle.
Always
folic commonly accepted
safety
practice*
and
general
common sense.
Never
ris• personal
injury.

Note

Incomplete or improper servicing ri

cause
problems in the operation of the r-
hicle
and may reduce or eliminate y;.
warranty coverage. If in doubt about a-
servicing,
have it done by your
Volks/
E-

gen
dealer or any other properly equips
and
qualified workshop.


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VEHICLE CARE
ENGINE OIL
Engine oil consumption t 3 normal for your engine to consume oil.

T-Q
rate of oil consumption depends on
re quality and viscosity of
oil,
the speed at
Mich
the engine is operated, the climate,

read
conditions as well as the amount of : ution and oxidation of the lubricant.

Because
of these variables, no standard
•e:e
of oil consumption can be esta-
:
shed,
but drivers should expect an in­
creased
oil consumption at high speeds
s.nd when the engine is new.
• The
engine
in your
vehicle
depends
on oil to
lubricate
and cool all of its
mov­

ing
parts.
Therefore
the
engine
oil
should be checked
regularly
and
kept
at
the
required
level.
•
Make
it a
habit
to
have
the
engine
oil

level
checked
with
every
fuel
filling.

• Lack of
sufficient
engine
oil may
lead

to
severe
engine
damage.

• The oil pressure
warning
light
is not
an oil
level
indicator.

Always
heed
WARNINGS
on
page
97.
The
engine oil dipstick and the oil filler

neck
are located behind the license plate

lid.

Checking the
engine
oil
level

The
best time to check the engine oil level
is
when the oil is warm.
• Turn off the engine.
• To get a true reading, the vehicle should

be
on level ground. After turning off the en­

gine,
wait a few minutes for the oil to return
to the crankcase.
• Flip license plate down.
• Pull out dipstick and wipe it clean
with
a

rag.

• Reinsert dipstick; push it in all the way. • Pull dipstick out again. The oil level is
correct if it is between the "max" and "min" marks on the dipstick.
• If oil level is below "min" mark, or not
showing on dipstick, add oil immediately.
• Make sure
that
the dipstick is com­
pletely in.
Adding
engine
oil • Unscrew cap from oil filler neck.
• Pull extension tube out of filler neck as
far as it will go.
• Only add the amount of oil needed. The
difference between the "min" and "max" marks on the dipstick is about
1
U.S. quart
or
1
liter. Always select a quality oil
with
the
correct specification. See "Lubricants" on
page
85.
Do not exceed the MAX
marking.

Otherwise,
the excess oil may be drawn in
through the crankcase breather into the exhaust system. The oil would then burn in
the catalytic converter and cause dam­
age.

•
Push
in the extension tube, replace fil­
ler cap and hand tighten securely.

WARNING

The oil
filler
cap
must
be secure to avoid oil spill causing
fire
hazard.


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VEHICLE CARE
AUTOMATIC TRANSMISSION FLUID / MANUAL TRANSMISSION OIL
Automatic Transmission Fluid
The torque converter and the transmis­
sion are lubricated with Automatic Trans­ mission Fluid (ATF).
The final drive requires hypoid oil SAE 90,
which does not have to be changed.
Checking the ATF level
The ATF has to be checked at frequent intervals, for instance, when the engine
oil is being checked or at least at the intervals specified in your Maintenance
booklet.
Always heed WARNINGS on page 97. A correct ATF level is very important for
transmission operation.
To obtain an accurate reading, the
vehicle must be on level ground, and the
fluid must have reached operating
tem­

perature. Normally, after a cold-start the
fluid will reach operating temperature when the vehicle has been driven for ab­
out 6 miles or 10 km. If the ATF is too cool
or too hot, the fluid level reading will be inaccurate.
WARNING Before checking the ATF, the selector
lever must be securely locked in the Park position and the parking brake ap­
plied firmly.
Checking the ATF level is potentially hazardous because the hot engine has
to be running during the check. Do not
attempt to check the ATF before read­ ing all WARNINGS on page 97.
The ATF filler neck is in the engine com- partement on the left hand side. The dip­
stick is attached to the
plug.
Pull it out
and wipe clean first before inserting it to
take a reading. The Automatic transmission may be da­
maged by even a tiny speck of dirt.
Only use lint free rags to wipe the dip­
stick.
To get a true reading, the ATF must be at operating temperature.
You have enough ATF if the fluid level is between the two marks on the dipstick. I:
should never be above or below these marks. If level is too high or too low do not
just add or drain ATF. Have your dealer check and correct the cause as soon as possible.
For correct ATF specifications, see "Lub­
ricants" on page 85.
Changing the ATF
The ATF has to be changed at the inter­ vals specified in your Maintenance boo­klet.
Do not tow the vehicle or run the engine
without ATF in the transmission.
Manual Transmisson Oil Both transmission and final drive are
combined in one housing. The lubrican: used is hypoid oil which does not have tc
be checked or changed. If you shoulc
suspect a leak, contact your VW dealer.


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• Switch on charger.
• Charging
rate
not over 6 Amp.

Vormally,
a battery should be charged at
rc more than 10 percent of its rated
capa­

city.

For
example, a charging current of 4.5

Amp.
would be used on a battery having
• Ah. Rated capacity of the battery in .our vehicle is listed on the battery

"Dusing.

• After charging,
turn
off charger and dis-
ronnect charger
cables.

To
remove
battery
from
vehicle • Disconnect negative ground cable.
• Disconnect positive cable.
• Unscrew bolt of holding plate with open

end
wrench.
To
reinstall
battery
in vehicle •
Place
battery in vehicle and tighten bolt
of holding plate.
• Reconnect positive cable. • Reconnect negative ground cable.

WARNING
Do not
reverse
polarity.

Cleaning
terminals
and
connections
WARNING
• Before
work
is done on the
electrical

system, disconnect the
negative

ground cable.
•
When
working
on the
battery,
be
sure not to short circuit the
terminals

with
tools or
other
metal
objects. This

would
cause the
battery
to
heat
up
very

quickly,
which
could
lead
to
damage
or
explosion and personal
injury.

The
terminals and connections should be kept clean and greased with silicone spray

or
petroleum jelly. Make sure the ground

connection
to the body is
tight
and free of

corrosion.

With
a disconnected
battery
the
engine
must
not run because the
electrical
sys­
tem
will
be damaged. Replacing
battery

A
replacement battery must have the
same
specifications and dimensions as
the original equipment battery.
Specifica­

tions are listed on the battery housing.
Make
sure the replacement battery is in­

stalled
correctly and securely. See "Re­ moving and reinstalling battery".
Always heed
WARNINGS
on
page
97.


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VEHICLE
CARE
General notes

The original equipment tires
and
wheel
rims
on
your
vehicle comply with
all

applicable
Federal Motor Vehicle Safety

Standards.

If you
wish
to
equip
your
vehicle with tires
or wheels other than those installed
at the

factory, please note
the
following:

•
If
you plan
to
install other than the
ori­

ginal
equipment tires
and
wheel rims,

ask
your
Volkswagen dealer.

•
For
technical reasons
it is not
possi­

ble
in
every
case
to use
wheels from
other vehicles
-
under certain condi­
tions
not
even wheels from
the
same
vehicle
model.

•
Wheel rims
and
wheel bolts
or lug

nuts are matched to fit
your
Volkswagen.

•
When installing different wheels
(for

example,
wheels with winter tires),
the

correct wheel bolts
or
lug nuts with
the
proper length
and
conical shape must
be used. The secure fit of the wheels and
the proper functioning
of the
brake system are dependent upon this.
•
Using tires and/or wheels which have
not been approved
by
the manufacturer
for
your
vehicle
type
can be detrimental
to vehicle safety.

•
If
wheel trim discs
or a
front
spoiler
are

installed,
make
sure the airflow for cooling
the brakes
is not
obstructed.

•
Before
you
plan
on
exchanging steel
wheels, light alloy wheels,
or
snow tires
already mounted on wheel rims, consult

your
Volkswagen dealer. He has the tech­
nical
information necessary
to
advise
you which wheel rims and wheel bolts
or
lug
nuts are compatible with the original
factory installations.
WARNING
•
The
use of the wheel rims and wheel
bolts
or
lug nuts that do not meet
speci­

fications
of the
original factory
install­

ed equipment will affect the safe oper­
ation
of
your
vehicle and may cause an
accident and personal
injury.
Tire specifications

Tire
specifications
are
imprinted
on the
sidewall
of
the tires.
If in
doubt, check with

your
Volkswagen dealer.

All
passenger car and some light trucks tires must conform
to
Federal Safety
Requirements
in
addition
to
these
grades.

Treadwear

The treadwear grade
is a
comparative
rating
based
on the
wear rate
of the
tire
when tested
on a
government test course. For example,
a
tire graded
150
would wear
one
and a
half
(IV2)
times
as
well
as a
tire
graded 100.
The
relative performance
of

tires depends
on
actual conditions
of use,
however,
and may
depart significantly
from
the
norm
due to
variations
in
driving
habits,
service practices
and
differences
in road characteristics and
climate.

Traction A, B, C

The traction grades, from highest
to
lowest,
are A, B and C and
represent
the

tire's ability
to
stop
on wet
pavement
as
measured
on
government test surfaces
of

asphalt
and concrete. Atire marked
C
may
have poor traction performance.


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DO-IT-YOURSELF-SERVICE

SPARE
WHEEL

The
spare wheel is located underneath the floor panel of the driver cab, where it rests on a hinged metal plate.
• To take out the spare wheel, remove
the bolt (curved arrow) from the holding bracket
with
wheel wrench,

WARNING
Keep hands and
arms
away
from
under-

body of vehicle.
• Stand in
front
of the vehicle and pull the

catch
hook (arrow) forward to let the metal
plate drop.
•
Pull
out the spare wheel. • When re-installing the spare wheel,

slide
spare wheel onto metal plate.
•
Give
the plate a hard upward push and

make
sure the catch hook is securely

engaged.

•
Replace
bolt and tighten firmly.

WARNING
Never
drive
the
vehicle
without
a
firmly

tightened
bolt
on the holding
bracket.
Should the catch
hook
disengage acci­

dentally,
you could lose
control
of the
car.

Check
the inflation pressure periodically to

keep
the
tire
ready for use.
WARNING

Under
no circumstances should you

store
the spare
wheel
unsecured in the
luggage
compartment.
This coulc
cause serious personal
injury
to pas­
sengers in the
vehicle
in case of a coll -

sion.


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DO-IT-YOURSELF-SERVICE

Step
3
•
Loosen
wheel
nuts or bolts counter­

clockwise
about one turn with the lug

wrench.
Do not yet remove the nuts or
bolts.

To
loosen
- turn
counterclockwise

To
tighten - turn
clockwise

Step
4

There
are two jack ports on
each
side
under
the car
body
for front and
rear
wheel

changing
- see right illustration. [
B25-3)9|

WARNING
•
Mounting the jack at any other place
may damage the car or may result in
personal
injuries.

•
Provide a firm a base for the jack on
the ground. If
necessary,
use a board.

•
Securely
insert the jack into the jack

port
closest
to the
wheel
to be
changed.

•
Before
inserting jack,
clear
jack port.

•
Place
jack as straight as
possible,
as

shown.
Step
5
Never jack the vehicle up by the bu~
per or body.

Do
not raise the vehicle until you are

sure
the jack is securely engaged.

Passengers
must not remain in the
vehicle when jacked up.

•
Make sure
that
passengers
wait
in z
safe place away from the vehicle arc

well
away from the roadway and traffic

•
To raise the
vehicle,
turn the
har:T

clockwise.

Only
raise
the
vehicle
as
much
as
needed
to
change
a
wheel.

Step
6
WARNING Before installing the spare wheel, acc-
mulated road
dirt
must be remove:
from the inside and outside of the
wheel nut/bolt holes to assure a secure mount on front hub or rear drum.

126


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