1992 VOLKSWAGEN CARAVELLE oil temperature

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GENERAL
MAINTENANCE
Engine oil
T

Viscosity and
specification

A
special,
high quality multigrade oil is put in
the engine at the factory and this can be
used
all the year round - except in very cold

climates.

As
a good engine oil is a prerequisite for
trouble free operation and long engine ser­

vice
life, only a correspondingly high quality oil may be used for topping up and at oil

changes.

The specifications shown on this page must be marked either separately or together

with
other specifications, on the containers.
When topping-up, the oils can be mixed

with
one another.
The viscosity class of the oil must be se­ lected in accordance
with
the illustration. If
the ambient temperature exceeds the given range briefly, the oil does not need to be

changed.

Important
note

Quite naturally engine oils are also being
continually developed. For this reason the statements in this Instruction Manual are
only in line
with
the current state at the time
of going to press.

Volkswagen
dealers are kept up-to-date by the factory regarding changes. For this
rea­
son
the oil change should preferably be
done by a Volkswagen dealer. F
100

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Petrol
engines

A
- Multigrade - improved lubricity engine
oils,
specification VW 500 00

B
- Multigrade oils, specification VW 501 01
- Multigrade oils, specification
API-SF^orSG11
Diesel
engines

A
- Multigrade-improved lubricity oils specification VW 500 00 (not for turbo-

diesel
engines)

B
- Multigrade engine oils, specification
VW
505 00 (suitable for all diesel en­gines)
- Multigrade oils, specification
API-CD
(with
turbo-diesel only for topping-up
in an emergency)
- Multigrade oils-specification VW 501 0': (not for turbo-diesel engines)
Oil
characteristics
Multigrade
oils to VW
Standard
501
01 are reasonably priced oils
with
the fol­ lowing properties:
- All year round use in temperate climate
areas.

- Excellent cleaning capability.
- Efficient lubrication at all engine tem­ peratures and load conditions.
- High resistance to ageing.
11 These oils may only be used if the approved engine oils are not available.
96
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GENERAL
MAINTENANCE
The
multigrade-improved
lubricity
oils as per VW
Specification
500 00 m/e in addition the following advantages:

-
All year round use at practically all tem­ peratures.

-
Low frictional
losses
in the engine.

-
Best possible starting even at very low temperatures.
»Jotes
I
Single
grade
oils. Due to their limited
i-scosity
ranges these oils are not generally
j_::eptable for all year round use. "erefore these oils should only be used in

-
:reme climatic
zones.

•
When using SAE 5 W-30 multigrade oil, xntinuous high engine speeds and engine

seeding
should be avoided. This restriction
::es
not apply to multigrade-improved lu-
r city oils.
Checking
oil
level

Every
engine uses a certain amount of oil.

The
oil
consumption
can be up to 1.0
litres per 1000 km - see also page 80. The
engine oil level must therefore be checked
at regular intervals, preferably when filling
the tank and before a long journey.

The
location of the dipstick is shown in the illustration.

The
vehicle must be on a level surface when
checking
the oil level. After stopping engine
wait a few minutes for the oil to drain back
to the sump.

Then
pull the dipstick out, wipe it
with
a
clean
cloth and insert again.

Then
pull dipstick out again and check the oil
level:
A
- Oil
must
be topped-L.c.
Afterwards it suffices v.-5-:_e : e e
is
somewhere in area B.

B
- Oil can be topped-up. It can then happen
that
the c e.e s -

area
C.

C
- Oil
must
not be topped-up.

When
the engine is working hard sue as -
sustained
high-speed motorway cruising in
summer, when towing a trailer or :re~
climbing mountain
passes,
the c: e.e
should
be kept at area C (not
above

Note

If the dipstick does not have a- c"ee: -

measuring
area,
the upper and lows- e~zi
of the etched area form the MAX.
a~
z '.'
marks.
The oil level must be betv.ee- re
two marks. If it has dropped to 're '.' ". mark, oil must be added,
however
on no

account
above
the MAX.
mark.
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GENERAL
MAINTENANCE

Gearbox
oil
Specifications

Manual
gearbox
and
final
drive

•
Gear
oil,
API-GL
4, SAE 80 or
•
Gear
oil, G 50, SAE 75 W-90

Automatic
gearbox

• Final drive:
Gear
oil, G 50, SAE 75 W-90 I Gearbox part: ATF Dexron®
Checking oil
level
rVith
a
manual
gearbox
and
final

drive
the oil level does not need checking.
'.ith the
automatic
gearbox
the oil

•e.
el in the final drive does not need check- *g either.

"he
ATF
level
in
gearbox
part
must ": .'/ever be checked in between the inter-

•BS
given in Service Schedule. To do this
ire vehicle must be standing on a level sur-
fe:e.
The
level must only be checked when
He ATF is
warm.
(Approximately 10 km

Irrer
starting from
cold,
the ATF has re­
tted the required temperature.) If fluid is
l:: :: or too hot the reading will be incorrect.
1
he engine must be running at idling
speed,

the handbrake must be applied and the se­ lector lever at "N".

To
check, pull dipstick (see Fig.) out, wipe
with a clean lint-free rag and then insert it
fully
again.

Pull
the dipstick out and check ATF
level.

When
the ATF is
warm
the
level
must
be
between
the two
marks
- other­

wise
the vehicle must be taken to a
Volks­
wagen
dealer without delay so that they can
find the reason for the incorrect
level.
It is not sufficient to merely top up or drain off

ATF.
Changing oil

For
the manual
gearbox
with
final

drive
the oil does not need changing.
For the
automatic
gearbox
the :
the final drive does not need
chariC-g

either. The ATF in gearbox part must how­

ever
be changed at the intervals given in
Service
Schedule.
Because of the disposal
prob­

lems,
the
special
tools
necessary
and the
specialist
knowledge
re­
quired,
the ATF
changing
should

preferably
be
done
by a
Volkswagen
dealer.

Notes

•
When
there
is no
lubricant
in the
manual
or
automatic
gearbox,
the

engine
must
not be
started
and the
vehicle may only be
towed
with
the

driving
wheels
lifted.

• No
additives
may be
mixed
with
the lubricants.
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GENERAL
MAINTENANCE
Air
cleaner
Power
assisted
steering

The
paper
filter
element in the air cleaner is normally renewed as detailed in the Service

Schedule.
In very dusty conditions the el­
ement must be cleaned or renewed at
shorter intervals.
To clean or
renew
element

•
Release
clip (1 ) •
Press
locking handle ( 2 ) down and un­ hook it.
• Take
filter
housing out upwards.
• Take
filter
element out. •
Clean
element
with
compressed air or renew it.

The
element must not be washed
with
pet­ rol or moistened
with
oil.
Installing

• Insert
filter
housing. Ensure
that
the
plastic
lug on the rearend of the elementfits
in the recess in the mounting.
• Secure clip (1 ).
• Pull locking handle ( 2 ) up until it en­
gages.

The
reservoir is located in the engine com­partment on the
right
looking forward.

The
power assisted steering is filled
with
our hydraulic oil G 002 000.

The
correct oil level in the reservoir is
essen­

tial for the satisfactory operation of the power assisted steering.

The
level can only be checked
with
the en­ gine at normal operating temperature but not running.
100
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GENERAL
MAINTENANCE

Checking
coolant
level

The
expansion tank
is in the
engine
com­
partment on the bulkhead
-
see Fig.

The
correct coolant level
is
essential
to
the satisfactory operation
of
cooling system.
For
this reason, the coolant level should
be

checked
regularly,
and
this
is
best done
when refueling.

The
level
can
only
be
checked properly
when engine
is
not running.

The
coolant level must be between the MIN
and
MAX marks
on the
expansion tank
when engine
is
cold
and can be
slightly
above
the MAX mark when
it
is warm.
When
the
coolant level
is too low on ve­

hicles
with
an automatic coolant level moni­
toring device,
it is
indicated by the coolant
temperature/coolant level warning lamp
flashing continuously (see page 47).

Coolant
losses

Coolant
loss normally indicates leaks in the

system.
In
this
case
the
cooling system
should
be checked by a Volkswagen dealer

without
delay.
It is
not sufficient merely
to

add
coolant.
In
a
sealed system
losses
can only occur
if

the boiling point
of
the coolant is exceeded
as
a
result
of
overheating, and coolant
is

forced out
of
the system.
Overheating can occur
if:

• the flow
of
cooling air is reduced, e.g.
by
a
radiator
muff,
very
dirty
radiator fins
(leaves,
dust, insects)
or
additional driving
lights
in
front
of
the cooling air intake.
• the boiling point
of
the coolant has been lowered by an incorrect mixture
-
see previ­

ous
page.
•
the
radiator
fan is not
working
- see
"Fan"
on next page
-
or, • the vehicle
is
driven up
a
long hill
in too

low a gear
with
engine speed very high and
at very high ambient temperatures
-
see
"Fan"
on
next page.
If
the
cause
of the
overheating cannot
be

found
and
eliminated, contact
a
Volks­
wagen dealer
as
soon
as
possible other­

wise
serious damage may
be
done
to the
engine.

Topping
up
coolant
Switch
engine
off
and let
it
cool down. Then

cover
expansion tank cap
with
a
cloth and

turn
cap carefully
to
the
left
and remove.

Attention
Do
not
remove
expansion
tank

cap
when
engine
is
hot
-
Danger
of scalding.

System
is
under
pressure.

If, in an
emergency only water
can be

added,
the
correct mixture concentration must be restored
with
the specified coolant
additive (see previous page)
as
soon
as
possible.

•02
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GENERAL
MAINTENANCE

Winter
driving
T

Ac

The an«

safe
high

ensi

supf

with
poin

sub:

tech latei
• /
fori

any

thro

SWc
pete

A
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m
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V
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r<
In winter the following points should be
noted:
• Winter weather is particularly hard on the
battery
and it should therefore be
checked,
preferably by a Volkswagen
dealer, before the onset of cold weather. If the vehicle is not driven for several weeks
when the temperatures are very low, the
battery
should be taken out - for
further
in­
formation see page 107.
• On a vehicle
with
a Diesel engine, winter
Diesel
must be used at temperatures below
0 degrees C - see page 87.
• The water should be drained out of the
Diesel
fuel
filter
before the onset of
winter.

This
operation is also included in the Lubri­ cation
Service.

• The anti-freeze in the cooling system should be checked before the cold
season
starts - see page 101.
• The engine oil viscosity must be correct for the ambient temperature - see page 99.
• Particularly in
winter,
frequent washing and waxing of the vehicle is the best way to protect it against harmful environmental in­

fluences.
• In winter the windscreen washer
sys­

tem should always be filled
with
a window
cleaning solution containing an anti-freeze
additive.
• To remove snow and ice
from
the win­ dows and mirrors, a plastic scraper should be used - see page 90.
• The road holding and handling can be im­ proved in winter road conditions by the use
of winter or All-weather tyres - see pages 114and146.
• When driving in mountainous districts in winter it is advisable to take snow chains

with
you. On some such roads, snow chains
are obligatory - see also page 114.
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TECHNICAL
DESCRIPTION

Emission
control
system<122>

The exhaust emission control system effec­
tively reduces
the
amount
of
pollutants
in

the exhaust gas.
Petrol
engines

The main parts
of the
emission control
sys­

tem
are

•
a
mixture formation system which guar­ antees very exact composition
of
the air/pe­

trol
mixture
at all
engine speeds
•
the
catalytic converter
•
the
Lambda probe1'
The
catalytic
converter
is
installed
in

the exhaust system.
It
consists
of a
steel-
cased
ceramic
or
metal body containing
a
multitude
of
longitudinal
passages
which
are vapour coated
with
a
thin
layer
of
plati­
num
or
rhodium.
The exhaust gas flows through
the
catalytic converter
and
reacts
with
an
afterburning
process
when
it
contacts
the
precious
metal coating.

Lambda
=
Air/petrol relationship
)B19-
129
In
this process three pollutants (three-way
catalytic converter)
are
converted
as
fol­
lows.

• Carbon monoxide
to
carbon dioxide
• Hydrocarbons
to
water
• Nitrogen oxide
to
nitrogen
(four
fifths
of
the
air we
breathe
is
nitrogen).

A
stipulation
for the
proper functioning
of

the catalytic converter, however,
is
that
the
exhaust gas has
a
certain specific composi­

tion
and
minimum temperature when
it

enters
the
catalytic converter. To obtain this
composition, exact regulation
of the
fuel/air mixture
is
required. Avery exact regulation

is
obtained
with
a
Lambda probe. The Lambda
probe*
is
fitted
in the ex­

haust pipe where
it
measures
the
exhaust

gas
composition continuously. The informa­

tion
signal
is
fed
to
an electronic control
unit

which
in
turn
regulates
the
mixture forma­

tion
system so
that
the
mixture
is
kept
con­

stantly correct.
The exhaust emission control system tech­ nology
is so
well developed
that
no
addi­
tional maintenance whatsoever
is
required.

To
maintain
the
effectiveness
of the
emission
control system,
the
following
must
be
noted:
• Only
fill
up
with
unleaded petrol
- see
page
86.

• Never
run
tank completely empty
-
see page
85.

•
Do not
overfill engine
oil -
see page
98.

•
Do not
switch
off
ignition whilst driving - see page
39.

•
Do not tow
start vehicle
for
more than 50 m-see page 133.
137
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