1992 VOLKSWAGEN CARAVELLE coolant temperature

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CONTROLS
AND
EQUIPVE\

Additional
water
heater*
E
additional water heater heats the
cool-

— ;he heater circuit and supplies the nor- • ^eating heat exchanger and the addi-

:~a
heat exchanger* for heating up the
rsaenger
compartment
with
heated
cool-
' ""e engine coolant circuit is not heated.
I current is supplied from a 2nd battery.

:ching
on and off and pre-selecting the
. :ch on/off times is effected via the timer,
- :h can be found in the instrument panel.

~a
air distribution and the air flow is ef-

:::ed
via the normal heating and ventila- : li aontrol elements (operating see page

a
additional water heater can be used

•en
stationary (short term operation) or -g the journey (continuous operation). If

.a;
when the vehicle is stationary the

•Her
runs for maximum 30 minutes,
;eoy
preserving the battery. Apart from
• 5 t switches off automatically, when a .: ant temperature of 92 degrees C is

Bcned.

"
an
the coolant temperature has dropped
-: .v 84 degrees C the heater switches on
The
additional water heater is supplied
with

fuel from the vehicle tank. It consumes up
to
1
litre
of fuel per hour. The heater output

is
approx. 7.0 kW.

Notes

• If the coolant temperature in the heater circuit reaches 55 degrees C, the fresh air
blower is automatically switched to stage 2.
• The additional water heater will only switch on when the temperature selector
lever
(see page 55, lever C) is pushed fully
to the
right.

• With the heater switched on the tem­ perature selector lever must not be pushed
to the
left.

• Regulating the heat output is not
poss­
ible
with
the temperature selector lever.
• When driving across country through mud or deep snow the heater exhaust pipe

can
become blocked. Therefore under

these
conditions check
that
the pipe is clear before switching on the heater.
Attention

The
heater
must
be s . ::'-
a
: : in confined spaces and when fil­

ling
the
tank.

•
Each
time the heater is sw :ce:
circu
at .-' pump and the comes::-blower continues to run for a v. K.e :: :::
down the heater
unit
quicker. Wher,-:. rg
the tank it is not necessary to vva :
end
of the run-on.
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DRIVING
TIPS

• Where possible make
full
use of the maximum permissible drawbar weight on

call
of the towing bracket - see page 151 -
cut do not exceed it.
• While observing the permissible trailer
and
drawbar weight, distribute the load in
the trailer so
that
heavy objects are as near
as
possible to the axle. The objects must
a
so be secured so
that
they cannot slip
aoout.
• Check the
tyre
pressures on the towing
/ehicle
and the trailer.
• The headlight settings, should be
:hecked
with
trailer attached before mov- ng off and adjusted as necessary.

On
vehicles
with
headlight beam control it

is
only necessary to
turn
the knurled disc in
:ash
in the appropriate direction.
Driving
instructions

To
obtain the best possible handling of ve­
hicle
and trailer, the following should be

noted:

• Try to avoid driving
with
an unladen ve­
hicle
and a loaded trailer. If this cannot be

avoided,
only drive slowly to allow for the unfavourable weight distribution.
• As driving stability of vehicle and trailer
decreases
when the speed increases do not
drive at the maximum permissible top
speed
in unfavourable road, weather or
wind conditions - particularly when going downhill. In any
case
the speed must be reduced im­
mediately the trailer shows the slightest

sign
of snaking. On no account try to stop
the snaking by accelerating.
• For safety reasons one should not drive faster than 80 km/h (50 mph). This also
applies
in countries where higher speeds
are permitted. • Always brake in good time. If the trailer

has
an overrun brake, apply the brakes gen­
tly at
first
then firmly. This will avoid the
jerk­
ing caused by the trailer wheels locking.

Change
down before going down a steep hill so
that
the engine can act as a brake.
• When a long climb in a low gear
with
ex­ tremely high engine revs must be nego­
tiated at exceptionally high ambient tem­peratures the coolant temperature gauge must be observed. When the gauge needle

moves
to the
>~zza'
e~z of :ne
scale,
the road speed must be reduced immediately. If nevertheless ~g amp flashes,
stop immediately and si ow the engine to

cool
off at idling speed for several minutes.
• The cooling effect of the radiator fan
can­
not be increased by changing down, be­

cause
the speec of t~e
~a~
s ~o! dependent
on the engine
speed.
One should therefore not change down even when towing a
trailer as long as :-e e-g -e zar cope with­ out the vehicle speed dropping too much.
83
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GENERAL
MAINTENANCE

Maintenance

-s
the
vehicle
is
fitted
with
modern
low
~aintenance
technical components only

small
amount
of
regular servicing
is re­
tired
in
order
to
maintain
the
roadworthi-
"sss,
economy and reliability.
~ne Inspection Service offered by the Vol ks-
I
agen dealers takes into account
to a
large
extent
the
individual annual mileage
cov-

e-ed and helps thus
to
keep
the
operating
:osts
as
low as possible.

Regular maintenance helps to

-J
ensure
that
the emissions - and
thus the environmental burden are

kept
as low as possible.

The
Inspection
Service
is
required
every
12
months
or
every
30 000 km,

. nichever occurs
first.

I
a mileage
of
15 000
km
(petrol engines)
or

"500
km
(Diesel engines)
is
reached before "2 months
has
elapsed,
the Oil
change
Service must
be
carried out. See page
98

5
so and
the
Service Schedule.
~ie Service Schedule also shows what »rk
is
done
at the
Inspection
and Oil

Inange
Services.
In
arduous
operating
conditions, e.g.
extremely low ambient temperatures, very
dusty conditions etc. certain service oper­
ations should be carried
out
between the in­
tervals specified.

This
applies
in
particular
to:

• Changing
the
engine
oil

• Cleaning
or
changing
the air
cleaner
el­
ement
• Draining water from
or
renewing the fuel
filter
on the
Diesel engine

The
service operations should be carried out by
a
Volkswagen dealer because this work
requires specialist knowledge, workshop
equipment and special tools. Furthermore
this work must
be
done
in
accordance
with
out instructions.

Complete
proof
of
servicing
by a
Volks­
wagen dealer can be one
of
the stipulations
for
the
upholding
of any
warranty claims during
the
one year warranty period.

Attention
Safety
regulations
place
very

strict
limits
on the
amount
of re­

pairs
and
adjustments
to
engine

and
running
gear
parts
which
can
be
done
by the
owner.
By
tinker­
ing
with
parts
which affect
the

safety
of a
motor
vehicle
one can

endanger
oneself
and
other road users.

Altering the engine settings is detrimental to the
exhaust

emissions.
This means
that
the envi­
ronment is burdened unnecessarily
and the
fuel
consumption
also
in­
creases.

The disposal of old oil, used brake

fluid,
dirty
coolant, defective
bat­

teries or worn-out tyres etc. must be
done according to environmental
protection regulations. It is even
better
if old operating fluids and parts are used
again
and
do not become a burden on the envi­
ronment. Through "recycling" valu­

able
raw-materials and
energy
are
saved and at the same
time
it re­ lieves the load on the toxic waste

dumps.
Volkswagen dealers collect
all reusable materials and parts and

passes
them
on to the correct
agency
for recycling.
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GENERAL
MAINTENANCE

Engine
compartment

Page

Windscreen
washer
container
.. 108
Power
assisted
steering

fluid
reservoir*
100
Engine
oil filler
opening
97

Engine
oil
dipstick
97

Coolant
expansion
tank 102
Brake
fluid
reservoir
104

Battery
106 Attention
Particular care should be
taken

when working in the engine
com­
partment!

•
Switch off engine, remove ignition key.

•
Pull handbrake on firmly.

•
Move gear lever into neutral or
"P"
position.

•
Allow engine to cool off.

•
As long as the engine is at op­
erating temperature:

-
Do not put your hand into the radiator fan, it could switch on

suddenly.

-
Do not open the radiator cap be­
cause
the cooling system is

under
pressure.

•
Avoid causing short circuits in
the electrical system - particular­ ly at the
battery
-.
•
If tests have to be
carried
out

with
the engine running,
there
is
an additional danger
present

from rotating parts - e.g.
V-belts,
generator, radiator fan etc. - and
from the high voltage ignition
system.

Attention must be paid to the warnings given in this Instruc­
tion Manual and to the generally
applicable
safety regulations.
When topping up fluids one
should
ensure
that
they are not mistaken,

one
for the other, under any
circum­

stances,
otherwise serious
func­

tional defects
will
result.
So
that
leaks
are quickly de­
tected
the ground underneath
the vehicle should be checked
reg­

ularly.
If spots as caused by oil or

other
operating fluids can be seen, the vehicle should be
taken
to the
workshop for checking.
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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

"=
lot
of
coolant has been lost, only add cold
:_:olant after
the
engine has cooled down.

~~
is
will prevent engine damage.
Do
not
fill
above the MAX. mark.

~~e
excess
coolant will
be
forced
out

"rough
the
pressure relief valve
in the
cap .-.nen engine becomes
hot.

Screw
cap on again tightly. Attention
The coolant additive and the coolant are a danger to health.
The additive must therefore only be stored in the original
con­

tainer
well
out of reach of
children.
If the coolant has to be
drained at any
time
it must be
caught and also stored in a safe
place.

Drained
coolant
should
not nor-
W*
mally
be
reused,
it
must
be
dis­
posed
of,
bearing
in
mind
environ­
mental
protection
regulations.
Fan
The radiator
fan is
driven electrically
and
controlled by a thermoswitch from the
cool­

ant temperature (also from the engine
com­
partment temperature on some models).

Attention
After the engine has been
switched off the fan can
con­

tinue running for a
while
(up to
about 10 minutes)
with
the igni­
tion off. It can also
start
to run
again suddenly
after
a short time, if the coolant temperature in­

creases
due to
heat
build-up.

Special
care must therefore be
taken when working in the en­ gine compartment. Notes

•
If
the fan is not running although the
cool­
ant temperature
is
very high,
the rse

should
be
checked
and if
necessary
re­
newed
-
see page 122.
• The speed
of
the fan does not depeno
or
engine
speed.
The
cooling effect cannot
therefore
be
increased
by
changing down.

As
long as
the
engine runs smoothly and
a
gradient can
be
taken
without
a
large drop in speed
it
is not necessary to change down.

Driving in
winter

To
ensure
that
the
frost protection
is ad­
equate, the coolant concentration should be

checked
and
if
necessary corrected, before
the cold
season
begins.
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ALPHABETICAL
INDEX

A
Acceleration
figures 142

Accessories
117 Activated charcoal
filter
138
Additional heater 62
Additional water heater 67
Adjusting brake pressure regulator . . 155
Adjusting headlights 128 Adjusting washer
jets
108

Air
cleaner 100

Air
conditioner 57

Air
distribution 55

Alloy
wheels 91

Analog
clock 46

Anti-dazzle
inside mirror 13
Anti-freeze 101 Anti-locking brake system (ABS) .... 30
Arduous operating conditions 115
Armrests 21

Ashtrays
73
ATF
99
Automatic gearbox 32
Automatic wash plants 88
Auxiliary heater 63
Axle
loads 148

B

Battery 106
Belt height adjustment 16
Blower
55
Bonnet 94
Brake
fluid
104
Brake
servo 30

Brake
system 104

Brake
warning lamp 48
Brakes
29, 139
c

Capacities
153

Capacity
141

Care
of body 88
Care
of car 88

Catalyst
137

Cavity
preservation 92
Central
locking system 8

Cetane
Number 87
Changing
bulbs 124

Changing
front
turn
signal bulb 125

Changing
wheels 120

Chassis
number 154
Checks
when
filling
the
tank
160

Child
safety 18

Child
seats 18
Child-proof catch 9 Cigarette lighter 73

Cleaning
and anti-corrosion
treatment
of engine compartment 91

Clock
46

Cold
starting aid 38

Combined
weight 151

Compression
ratio
141
Consumption figures 143

Coolant
additive 101
Coolant
level 47, 102
Coolant
temperature - Gauge 41

Cooling
system 101

Cruise
control system 53
D
Dash
panel 4

Dashboard
and controls 4
Defrosting windows 56, 58

Diesel
fuel 87
Dimensions
152
Dip lever 52
Dipstick - Automatic gearbox 99
- Engine 97
Direction indicators 48
Do-it-yourself 118

Door
locks 9

Doors
9 Drawbar weight 83
Driver's seat 20
Driving abroad 115
Driving on holiday 115
Driving safely 78 Driving tips 76

E

Electric
socket 73

Electric
window
lifters
12

Emergency
lights 51
Emergency
starting 130

Emission
control system 137
56
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