Page 49 VOLKSWAGEN TRANSPORTER 1992 T4 / 4.G Manual PDF

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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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TECHNICAL DATA

General information
Where
not
otherwise indicated
or
listed separately,
all the
following
technical data
is for
standard
ve­
hicles
in
Germany. For special vehicles
and
vehicles
for

other countries these figures
may be

different.
Please note that
the
details
in the

official vehicle documents
can be

taken
as the
correct figures. Which engine
is
fitted
in
your
ve­

hicle
can be
found
in the
vehicle
data
in the
Service Schedule
or in

the official vehicle paperwork.
ENGINE DATA
Output11

kW
(BHP)
at
rpm
Maximum

torque

Nm
at rpm
Num­

ber
of

cylin­
ders
Ca­

pacity

cm3
Stroke

mm
Bore

mm
Com­

pres­
sion
Fuel2'

Petrol engines
with regulated
catalyst 62 (84)
/
4300

159/2200
4

1968
95.5
81.0

8.5
91
RON
unleaded
Petrol engines
with regulated
catalyst
81
(110)/4500

190/2200
5
2461
95.5
81.0

8.5
91
RON
unleaded
Diesel engines 45 (61)/3700

127/1700-2500
4

1896
95.5 79.5
22.5
Diesel

Diesel engines

503>
(68)
/
3700
140/2000-3000
4
1896

95.5 79.5
22.5
Diesel

Diesel engines
57 (78)/3700
164/1800-2200
5
2370
95.5
79.5 22.5
Diesel

Petrol engines
without cata­
lyst41
62 (84)
/
4300
1 59/2200 4
1968

95.5
81.0

8.5
91
RON
unleaded/leaded

11 According to EC or DIN regulations. Due to different methods of measuring, slight
deviations are possible. 21 For further details -
31 With catalyst see page 86.
4) Only for some export countries
141
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TECHNICAL DATA

Wheels

The tyre/wheel combinations in the table are valid for steel and alloy wheels. Details
on whether other tyres or wheels can be
used
can be obtained from Volkswagen

dealers.

For
winter tyres the most suitable tyre/
wheel combination is given. The winter
tyre
recommendation applies also to All-
weather tyres. Further remarks on the use of winter tyres are given on page 114.
Attention

If you
wish
to fit
your
car
with

non-standard
wheels
or
tyres

(e.g.
alloy
wheels
or
wheels
with

winter
tyres),
you
must
read
the

appropriate
notes
in the
centre

and
right
hand
columns on
page
113.
Snow
chains

Snow
chains may only be
fitted
on the
front

wheels.

Snow
chains
must
not be
fitted
to 215/65
R
15
size
tyres. If necessary smaller tyres
must be fitted.

Tyres
on
wheel
Winter
tyres/wheels

185
R14 C

99/97N
(or 99/97P)
5
1/2 J x14

185
R 14/5 1/2 Jx 14
195/70 R 15 97S reinforced 6 J x 15 205/65 R
1
5 / 6 J x 15
205/65 R 15 98S reinforced 6 Jx 15 205/65 R 15 / 6 J x 15
215/65 R 15 100T (or 102H) re­ inforced 7 J
x1
5
205/65 R
1
5 / 6 J x
1
5
146
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TECHNICAL DATA

Tyre
pressures
Attention

The
tyre
pressures
must
be
checked
at
least
once
a
month.

They
are
very
important
particu­
larly
at
high
speeds-see
page
110.
These
pressures are for cold tyres. When
tyres are warm the pressure is higher but do
not reduce it.
The inflation pressures are given on a sticker on the inside of the driver's door lock pillar. As the pressures may be altered at
short notice fortechnical reasons there may

Tyre
pressures
for
vehicles
with
a
permissible
axle
load11 on one
axle
of less
than
1285 kg
Tyres
Pressure
in bar
Front
Rear

Spare

185 R 14 C 97/99N (or 97/99P) 3.0 3.8
3.8
195/70 R 15 97 S reinforced 2.6 3.4
3.4
205/65 R 15 98 S reinforced 2.6 3.4
3.4
215/65 R 15 100 T (or 102H) reinforced 2.4 3.0
3.0

Tyre
pressures
for a
vehicle
with
a
permissible
axle
load11 on one
axle
of 1285 kg or
more

Tyres
Pressure
in bar
Front
Rear

Spare

185 R 14 C 97/99N (or 97/99P) 3.4
3.8 3.8
195/70 R 15 97 S reinforced 3.0 3.4 3.4
205/65 R 15 98 S reinforced 3.0 3.4 3.4
21 5/65 R 15 100 T (or 102H) reinforced 2.4
3.0 3.0 be differences between sticker and Instruc­

tion
Manual. If this should be the
case,
ask your Volkswagen dealer for the correct
pressures.

The permissible
front
and rear axle loads are givenonpage148.
147
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TECHNICAL
DATA

Weights

Vehicles
with
4
cylinder engines
(Figures for 5
cylinder engine
in
brackets)
Normal
payload
Wheelbase
Permissible Unladen weight
Payload
Permissible
Perm.
Perm.

(in
kg)
in
mm
GVW

(with
driver)
front
axle load rear axle
roof

(in
kg)

load
load2'

Caravelle
2920
2465
(2540)

156511
(1640)11
900
(900)

1350
(1430)
1300

100

3220
2565
(2640)
166511
(1740)1'

900
(900)
1430
(1520)
1300
100

lowered
suspension
2920
2365
(2440)

15651)(1640)1)
800
(800)
1280
(1350)
1200
100

Multivan31
2920
2500
(2540)
17051i(1780)l:'

800
(760)

1350
(1430)
1300

100

lowered
suspension31
2920

2430
(2505)
^os^mo)11
725
(725)
1350
(1430)
1200
100

Kombi
2920

2525
(2590)
15201,(1595)1»
995
(995)
1280
(1350)
1380
100

3320
2565
(2640)
15701'
(1645)1)

995
(995)
1350
(1430)
1380
100

High-roofed
Kombi
3320

2565
(2640)
16201,(1695)11

945
(945)
1350
(1430)

1380

-

Van
2920
2525
(2590)

1520
(1595)
995
(995)
1280
(1350)
1380
100

3320
2565
(2640)
1570
(1645)
995
(995)
1350
(1430)
1380
100

High-roofed
Van
3320

2565
(2640)
1620
(1695)
945
(945)

1350
(1430)
1380

-

Pick-up
2920

2465
(2540)
1470
(1545)

995
(995)
1200
(1280)

1380
50

3320
2525
(2590)
1520
(1595)

995
(995)
1280
(1350)
1380
50

Low
loader
3320

2525
(2590)
1520
(1595)

995
(995)
1280
(1350)
1380

50

Chassis
and cab
2920

2465
(2540)
1315
(1390)

-
1200
(1280)

1380
50

3320
2525
(2590)
1340
(1415)

-
1280
(1350)

1380
50

Double
cab
3320

2515
(2590)
1590
(1665)
925
(925)
1350
(1430)
1460
75

Chassis
with Double
Cab
3320

2515
(2590)
1460
(1535)

-
1350
(1430)

1460
75

Remarks
and
footnotes
- see
page
150
148
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Vehicles
with 4
cylinder engines
(Figures
for 5
cylinder engines
in
brackets)
Increased
payload
Wheelbase

Permissible
Unladen

Payload
Permissible
Perm. Perm.

(in
kg)
in
mm
GVW
weight
(with

front
axle
rear

roof
driver)
load
axle
load2'

load

Caravelle
2920
2650
(2700)

15651)
(1640)11
1085
(10.60)
1350
(1520)

1460
100

3320
2750
(2800)
166511
(1740)1'

1085
(1060)
1430
(1520)

1460
100

Kombi
2920
2700
(2775)

15201'
(1595)1' 1180(1180)
1430
(1430)

1460
100

3320
2750
(2800)
157011
(1645)11 1180(1155)

1430
(1430)
1460
100

High-roofed
Kombi
3320

2750
(2800)
162011
(1695)1) 1130(1105)
1430
(1520)

1460

-

Van
2920
2700
(2775)
1520
(1595) 1180(1180)

1350
(1430)
1460
100

3320
2750
(2800)
1570
(1645) 1180(1155)
1430
(1430)

1460
100

High-roofed
Van
3320
2750
(2800)
1620
(1695) 1130(1105)

1430
(1430)
1460

-

Pick-up
2920
2650
(2725)
1470
(1545) 1180(1180)

1280
(1350)
1460

50

3320
2700
(2775)
1520
(1595) 1180(1180)
1350
(1430)

1460
50

Low
loader
3320
2700
(2775)
1520
(1595)
1180(1
180)
1350
(1430)

1460
50

Chassis
and cab
2920
2650
(2725)
1315
(1390)
-
1280
(1350)

1460
50

3320
2700
(2775)

1340
(1415)
-
1350
(1430)

1460
50

Remarks
and
footnotes
- see
page
150

149
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TECHNICAL DATA
Vehicles
with 4
cylinder
engines
(Figures
for 5
cylinder
engine
in
brackets)
Reduced
payload

(K800)

(in
kg)
Wheelbase

in
mm
Permissible

GVW
Unladen

weight
(with
driver)
Payload

Permissible

front
axle load
Perm,

rear axle load
Perm,

roof

load21

Van
2920
2320 (2395) 1520 (1595)
800 (800) 1200 (1280) 1200 100

Kombi
2920
2320 (2395)

152011
(1595)11 800 (800) 1280 (1350) 1200 100

Notes

• Other model versions
and
optional
ex­
tras
-
e.g.
air
conditioner, automatic gear­box, sliding
roof,
towing bracket
etc. and

service
installation
of
accessories
in­

creases
the unladen weight and the payload
has
to be
reduced
by
this amount.
•
The
load must
be
stowed
so
that
it
can­
not slide about
or fly
forward when
the

brakes
are
applied.
If
necessary
use the
lashing eyes provided. • When carrying heavy loads,
the
load

should,
in
the
interests
of
good handling,
be
placed,
where possible, between
the
axles.
The permissible axle
and
gross vehicle weights must
not be
exceeded
on any
ac­
count. Bear
in
mind also
that
the
load will
alter
the
vehicle handling. Driving style
and
speed
must therefore
be
adapted
to
suit. Without driver

Use
only
the
roof load carrying system
ap­

proved
by us.
Distribute load evenly.
Do not

exceed
permissible roof load including roof rack
- and
permissible vehicle weight.
For

further
details see page
75

On
vehicles
with
a
pop-up roof
the
unladen
weight
is
increased
by 60 kg
and which corre­
spondingly reduces
the
payload.
150
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TECHNICAL DATA

Trailer
weights

Figures
in kg
Permissible
trailer weight11
max.
Permissible
combined weight21

Permissible
nose weight of tow bar
on ball coupling of towing bracket

Figures
in kg
Trailer

without
brakes Trailer

with
brakes
Gradients
up to
10 % 12 % max.

min.

62 kW petrol engine 700
2000 -4500
100
4%
of actual trailer
weight. However it need
not be more than 25 kg. It is advisable to fully
utilize the maximum per­

missible
nose weight
81 kW petrol engine
700 2000
-4500
100
4%
of actual trailer
weight. However it need
not be more than 25 kg. It is advisable to fully
utilize the maximum per­

missible
nose weight

45
kW Diesel engine
700 2000 4500 4500
100
4%
of actual trailer
weight. However it need
not be more than 25 kg. It is advisable to fully
utilize the maximum per­

missible
nose weight
50 kW Diesel engine
700
2000 4500 4000 100
4%
of actual trailer
weight. However it need
not be more than 25 kg. It is advisable to fully
utilize the maximum per­

missible
nose weight
57 kW Diesel engine
700 2000
4500 100
4%
of actual trailer
weight. However it need
not be more than 25 kg. It is advisable to fully
utilize the maximum per­

missible
nose weight
Detailed information on trailer towing is given
on page 81 .
The combined weight is made up of the per­
missible
gross vehicle weight of the towing
vehicle and the permissible gross weight of the trailer. When the permissible trailer pay-load is fully utilized, in some
cases
the weight
of the towing vehicle must be correspondingly
reduced.
However, the towing vehicle must
not be lighter than the trailer.
151
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Capacities
(in litres)
Fuel
tank
of
that
reserve about 80
about 10

Windscreen
washer

with
headlight washer about 5
about 7

Engine
oil
(with/without
filter
change)
4 Cylinder engines
5
Cylinder engines

The
oil level must be checked while topping up.
Do
not overfill (see page 97 )! about 5.0/4.5
about 5.5/5.0

Automatic
gearbox (ATF) about 3.0
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ROUTINE
CHECKS
WHEN
FILLING
THE TANKS
n order to ensure
that
your vehicle remains ready for the road at all
times between Inspections you should carry out a few checks reg-
jlarly
- preferably when filling the tank.
Attention

Take
particular
care
when
working
in the
engine
compartment
- see
page
95.

We
have listed the most important points to be checked here. How
to open the bonnet is explained on page 94. 1 -
Coolant
reservoir
(expansion
tank)

Attention
Do not
open
expansion
tank
when
engine
is hot -

danger
of scalding!
If the level is below the min. mark, top it up
with
coolant additive G 11 V 8 B and water - see page 101. When unavoidable plain water

can
be used temporarily.
2 -
Brake
fluid
reservoir

The fluid level must always be between the min. and max. marks

-see
page 104.
3 - Engine oil
level
Every
engine
uses
a certain amount of oil. If the level is too low it

can
lead to serious engine damage. For this reason the level must be checked regularly - see page 97.
4- Engine oil
filler
opening

The approved types of oil are given on page 96.
5 -
Windscreen
washer
container

Always
fill
with
water and a glass cleaner. Think about frost precau­
tions in winter.
6 -
Tyre
inflation
pressures
Check
the pressures at least once a month. The pressures are given
on page 147 and on a sticker on the driver's door lock pillar. For

further
information, see page 110.
60
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