wheel LAND ROVER DISCOVERY 2002 User Guide

GENERAL INFORMATION
03-12
Self-locking bolts and screws
Self-locking bolts and screws, i.e. nylon patched or
trilobular thread can be re-used providing resistance
can be felt when the locking portion enters the female
thread.
Nylon patched bolts and screws have a locking agent
pre-applied to the threads. They are identified by the
presence of a coloured section of thread which
extends for up to 180
° around the thread.
Trilobular bolts (i.e. Powerlok) have a special thread
form which creates a slight interference with the
thread of the hole or nut into which it is screwed.
DO NOT re-use self-locking fasteners in critical
locations (e.g. engine bearings, flywheel). Always
use the correct replacement self-locking nut, bolt or
screw.
DO NOT fit non self-locking fasteners in applications
where a self-locking nut, bolt or screw is specified.Nut identification
A nut with an ISO metric thread is marked on one
face or on one of the flats of the hexagon with the
strength grade symbol 8, 12, or 14. Some nuts with a
strength grade 4, 5 or 6 are also marked and some
have the metric symbol M on the flat opposite the
strength grade marking.
A clock face system is sometimes used as an
alternative method of indicating the strength grade.
The external chamfers or a face of the nut is marked
in a position relative to the appropriate hour mark on
a clock face to indicate the strength grade.
A dot is used to locate the 12 o'clock position and a
dash to indicate the strength grade. If the grade is
above 12, two dots identify the 12 o'clock position.
When tightening a slotted or castellated nut, never
loosen it to insert a split pin except where
recommended as part of an adjustment. If difficulty is
experienced, alternative washers or nuts should be
selected, or the washer thickness reduced.
Where bearing pre-load is involved, nuts should be
tightened in accordance with special instructions.

GENERAL INFORMATION
03-15
Hose clips
Markings (4) are usually provided on the hose to
indicate the correct clip position. If no markings are
provided, position the clip directly behind the
retaining lip at the end of the stub as shown. Worm
drive clips should be oriented with the crimped side
of the drive housing (5) facing towards the end of the
hose, or the hose may become pinched between the
clip and the stub pipe retaining lip. Worm drive clips
should be tightened to 3 Nm (2 lbf.ft) unless
otherwise stated. Ensure that hose clips do not foul
adjacent components.
Heat protection
Always ensure that heatshields and protective
sheathing are in good condition. Replace if damage
is evident. Particular care must be taken when
routing hoses close to hot engine components, such
as the exhaust manifold and the Exhaust Gas
Recirculation (EGR) pipe. Hoses will relax and
deflect slightly when hot; ensure this movement is
taken into account when routing and securing hoses.
Rolling Road Testing
General
IMPORTANT: Use a four wheel rolling road for
brake testing if possible.
WARNING: Do not attempt to test ABS function
on a rolling road.
Four wheel rolling road
Provided that front and rear rollers are rotating at
identical speeds and that normal workshop safety
standards are applied, there is no speed restriction
during testing except any that may apply to the tyres.
Before testing a vehicle with anti-lock brakes on a
four wheel rolling road, disconnect the ABS
modulator. The ABS function will not work, the ABS
warning light will illuminate. Normal braking will be
available.
Two wheel rolling road
Up to 03MY
ABS will not function on a two wheel rolling road. The
ABS light will illuminate during testing. Normal
braking will be available.
If brake testing on a two wheel rolling road is
necessary, the following precautions should be
taken:
lPropeller shaft to the rear axle is removed.
lNeutral selected in gearbox.
When checking brakes, run engine at idle speed to
maintain servo vacuum.
From 03MY
The differential lock must be engaged for two wheel
rolling road testing. It will also be necessary to
disconnect the propeller shaft from the transfer box
output shaft driving the axle whose wheels are NOT
on the rolling road. Additionally, the ETC system
must be deactivated by either removing the 10 amp
fuse (Number 28, labelled ABS in the main fuse box)
or disconnecting the ABS modulator pump. This
must be done with the ignition OFF ; a fault in the
ABS system may still be recorded.
WARNING; VEHICLES NOT FITTED WITH A
DIFFERENTIAL LOCK MUST NOT BE TESTED
ON A ROLLING ROAD WHERE THE ROLLERS
ARE DRIVEN BY THE VEHICLE.

GENERAL INFORMATION
03-22
Rotary coupler
Always follow the Repair procedure for fitting the
rotary coupler.
Comply with all safety and installation procedures to
ensure the system functions correctly. Observe the
following precautions:
lDo not install a rotary coupler if it is suspected to
be defective.
lDo not attempt to service, modify or repair a
rotary coupler.
lDo not cut, splice or modify the wires attached
to yellow SRS connector and lead.
lAlways ensure the rotary coupler connectors
are mated correctly and securely fastened.
lAlways ensure the battery is disconnected
before working on the rotary coupler.
lAlways ensure the rotary coupler is removed
and installed in its centered position and with the
front road wheels in the straight ahead position.
lIf a new rotary coupler is being installed, ensure
the locking tab holding the coupler's rotational
position is not broken; units with a broken
locking tab should not be used.
Warning labels
Warning symbols are displayed at various positions
in the vehicle (either in a suitable prominent position
such as driver and passenger side glass, or attached
to the component itself) to indicate SRS items which
must be treated with particular care. Exact positions
of SRS warning labels may vary dependent on
legislation and market trends.
WARNING: It is imperative that before any work
is undertaken on the SRS system the appropriate
information is read thoroughly.
Side window label
aThe need for caution when working in close
proximity to SRS components.
bRefer to the publication where the procedures,
instructions and advice can be found (usually
the Workshop Manual) for working on the SRS
system.
cDo not use rear facing child seats in the front
passenger seat if the vehicle is fitted with a
passenger airbag.Rotary coupler label
aRefer to the Workshop Manual for detailed
instructions
bEnsure wheels are in the straight ahead
position before removal and refitting
cPart number/Bar code. The code must be
recorded and quoted for ordering purposes

GENERAL INFORMATION
03-23
Airbag and pretensioner deployment
Deployment procedures and precautions as detailed
in this manual should be strictly adhered to. Only
personnel who have undergone the appropriate
training should undertake deployment of airbag and
pretensioner modules. The following precautions
must be complied with:
lOnly use deployment equipment approved for
the intended purpose.
lBefore beginning deployment procedure,
ensure deployment tool functions properly by
performing the self test procedure detailed in
SRS section of this manual.
lDeployment of airbag/ pretensioner modules
should be performed in a well ventilated area
which has been designated for the purpose.
lEnsure airbag/pretensioner modules are not
damaged or ruptured before attempting to
deploy.
lNotify the relevant authorities of intention to
deploy airbag and pretensioner units.
lWhen deploying airbag pretensioner units,
ensure that all personnel are at least 15 metres
(45 feet) away from the deployment zone.
lEnsure deployment tool is connected correctly,
in compliance with the instructions detailed in
the SRS section of this manual. In particular,
ensure deployment tool is NOT connected to
battery supply before connecting to airbag
module connector.
lWhen deploying seat belt pretensioners, ensure
pretensioner unit is secured correctly to the
seat.
lWhen removing deployed airbag modules and
pretensioner units, wear protective clothing.
Use gloves and seal deployed units in a plastic
bag.
lFollowing deployment of any component of the
SRS system within the vehicle, all SRS
components must be replaced. DO NOT re-use
or salvage any parts of the SRS system.
lDo not lean over airbag module when
connecting deployment equipment.
If a vehicle is to be scrapped, undeployed airbag
modules and pretensioner units must be manually
deployed. In this case airbags can be deployed in the
vehicle; before deployment, ensure the airbag
module is secure within its correct mounting position.
Deployment of the driver's airbag in the vehicle may
damage the steering wheel; if the vehicle is not being
scrapped, deploy the module outside of the vehicle.
WARNING: During deployment parts of the
airbag module become hot enough to burn you.
Wait 30 minutes after deployment before
touching the airbag module.
SRS Component Replacement Policy
The following information details the policy for
replacement of SRS components; either as a result
of a vehicle accident or as a result of vehicle age.
Impacts which do not deploy the airbags or pre-
tensioners
Check for structural damage in the area of the
impact, paying particular attention to bumper
armatures, longitudinals, crash cans and bracketry.
Impacts which deploy the airbags or pre-
tensioners
The replacement and inspection policy is dependent
on the type and severity of of the crash condition.
The following guidelines are the minimum that
should be exercised as a result of the deployment of
specific SRS components.
If the front airbags or seat belt pre-tensioners are
deployed, the following parts must be replaced:
lSRS DCU.
lDriver airbag module
lPassenger airbag module
lFront seat belt buckle pre-tensioners
lRotary coupler
lDriver's seat belt retractor
lFlyleads (where applicable) connecting airbags
and seat belt pre-tensioners to SRS harness
In addition, the following should be inspected for
damage and replaced as necessary:
lFront passenger's seat belt retractor (webbing,
tongue latching, 'D' loop, body anchorage point)
lRear seat belt buckles (webbing, buckle covers,
body anchorage and tongue latching function)
lFascia moulding adjacent to passenger airbag
module
lSteering wheel (if damage is evident)
lFront seat frames and head restraints (if there is
evidence of damage to the seat frame or
cushion pan)
lSteering column (if adjustment is lost or there
are signs of collapse)
lThird row seats, seat belts and head restraints
(where fitted). Check third row seat latching
mechanism operates correctly.
Periodic replacement of SRS components
The performance of the propellants within airbags
and pre-tensioners will deteriorate over a period of
time. As a result, it is essential that the airbags are
replaced after 10 years and seat belt pre-tensioners
are replaced after 15 years in order to maintain
occupant safety.

GENERAL DATA
04-14
Steering
Note: Measurements taken at EEC kerb weight.
Type Hydraulically assisted worm and roller
Steering wheel turns lock to lock 3.5
Steering wheel diameter 400 mm (15.7 in)
Turning circle, kerb to kerb 11.9 metres (39.1 feet)
PAS pump Hobourn Automotive Ltd. Series 500, belt driven
PAS pump pressure - engine at idle with steering at
full lock21 to 62 bar (305 to 900 lbf/in
2
Delivery pressure (nominal) 100 bar (1450 lbf.in2) 8.5 litres/min (15.1 pints/min) (18.1 US pints/
min)
Steering geometry:

Camber angle - Front, up to VIN 2A 754807 -
unladen condition

Camber angle - Front, from VIN 2A 754808 -
unladen condition

Camber angle - Rear - unladen condition–10' ± 30'
+20' ± 30'
–10' ± 30'

Cross camber - Front and rear 1° (Maximum)

Castor angle - unladen condition 3° 45' ± 45'

Cross castor 1° (Maximum)

Toe out - Front

Toe in - Rear– 0° 10' ± 0° 10' (total)
+ 0° 5' ± 0° 15' (total)
Thrust angle 20' (Maximum)

Swivel pin inclination 13° 11'

GENERAL DATA
04-15
Suspension
* Measurement taken with vehicle at unladen weight.
Type - Front Beam axle with coil springs, longitudinal radius arms,
Panhard rod, twin tube dampers and either anti-roll
bar or active cornering enhancement (ACE)
Nominal height from hub centre to wheel arch (not liner)* 500 ± 15 mm (19.7 ± 0.6 in)
Front road spring colour codes:

V8 LHS Pink/orange

V8 RHS - LHD Pink/orange

V8 RHS - RHD White/purple

Td5 LHS White/purple

Td5 RHS - LHD White/purple

Td5 RHS - RHD White/purple
Rear road spring colour codes:
5 seat, LHS Purple
5 seat, RHS - LHD Purple
5 seat, RHS - RHD Purple/purple
7 seat, LHS - LHD Grey/blue
7 seat, LHS - RHD Grey/green
7 seat, RHS - LHD Grey/blue
7 seat, RHS - RHD Grey/white
Bump stop height (top of bump stop to axle bracket) 44.5 mm (1.75 in)
Anti-roll bar diameter - front

With ACE fitted 35 mm (1.38 in)

Without ACE 30 mm (1.18 in)
Type - Rear Beam axle with coil or air springs, longitudinal radius
arms, Watts linkage, twin tube dampers and either
anti-roll bar or active cornering enhancement (ACE)
Nominal height from hub centre to wheel arch (not liner):*

Coil spring 483 ± 15 mm (19.0 ± 0.6 in)

Air spring 473 ± 15 mm (18.6 ± 0.6 in)
Road spring colour code Purple (all models)
Bump stop height (top of bump stop to axle bracket):

Coil spring 71.5 mm (2.8 in)

Air spring 61.5 mm (2.4 in)
Anti-roll bar diameter - rear

With ACE fitted 35 mm (1.38 in)

Without ACE - SLS fitted 29 mm (1.14 in)

Without ACE - SLS not fitted 5 seats = 19 mm (0.75 in)
7 seats = 16 mm (0.63 in)

GENERAL DATA
04-16
Brakes
Wheels and tyres
CAUTION: When towing, the additional load imposed may cause the tyre maximum load rating to be
exceeded. This is permissible provided the load rating is not exceeded by more than 15% and that road
speeds are limited to 62 mph (100 km/h) and tyres pressures are increased by at least 3 lbf/in
2 (0.2 bar).
NOTE: The tyre size is displayed on the outer wall of each tyre.
Normal operating conditions: carrying up to 4 passengers and luggage.
Type Servo assisted, diagonally split hydraulic on outboard discs, with
four channel electronic control ABS
Disc diameter:

Front 297.0 - 297.4 mm (11.693 - 11.709 in)

Rear 303.8 - 304.2 mm (11.961 - 11.976 in)
Front disc minimum thickness:

New 24.9 - 25.1 mm (0.980 – 0.988 in)

Service limit 22.0 mm (0.866 in)
Rear disc minimum thickness:

New 12.5 – 12.7 mm (0.492 – 0.500 in)

Service limit 11.7 mm (0.461 in)
Maximum disc runout 0.15 mm (0.006 in)
Minimum pad material thickness 2.0 mm (0.079 in)
Handbrake Cable operated drum on transfer box rear output shaft
Wheel size:

Steel 7J x 16

Alloy 7J x 16
8J x 16
8J x 18
Tyre size

With 7J x 16 wheels 235/70 R16 Wrangler HP 105H
235/70 R16 Michelin XPC * 105H

With 8J x 16 wheels 255/65 R16 Wrangler HP 109H
255/65 R16 Michelin XPC * 109H

With 8J x 18 wheels 255/55 R18 Wrangler HP 109H
Tyre Pressures
All tyres - normal operating conditions Front Up to 03MY - 1.9 Bar (28 lbf.in
2)
From 03MY - 2.1 Bar (30 lbf.in2)
Rear 2.6 Bar (38 lbf.in
2)
All tyres - vehicle at GVW Front Up to 03MY - 1.9 Bar (28 lbf.in
2)
From 03MY - 2.1 Bar (30 lbf.in2)
Rear 3.2 Bar (46 lbf.in
2)

GENERAL DATA
04-18
Dimensions
* Measurement taken with vehicle at unladen weight.
Weights
NOTE: The rear axle load for vehicles with self levelling suspension can be increased to a maximum of 1928 kg (4249
lb) when towing, provided road speed is limited to 60 mph (100 km/h).
NOTE: Axle weights are non additive. The individual maximum weights and gross vehicle weight must not be
exceeded.
Overall length - including towing hitch 4715 mm (185.6 in)
Overall length - including spare wheel 4705 mm (185.24 in)
Overall width (excluding mirrors) 1885 mm (74.2 in)
Overall height - Open sunroof * 2015 mm (79.3 in)
Overall height (without roof bars) * 1940 mm (76.40 in)
Minimum ground clearance * 253.5 mm (10.0 in)
Wheelbase 2540 mm (100.00 in)
Turning circle (kerb to kerb) 11.9 metres (39.1 feet)
Track - front 1540 mm (60.63 in)
Track - rear 1560 mm (61.42 in)
kgs lbs
Unladen weight:

V8 models 2095 - 2235 4619 - 4928

Td5 model 2150 - 2280 4740 - 5027
Max.GVW:

All 5 seat vehicles (coil springs) 2750 6063

All 7 seat Diesel engine vehicles (coil springs)
2880 6347

All 7 seat Petrol engine vehicles (coil springs)
2825 6215

V8 models with self levelling suspension 2825 6228

Td5 models with self levelling suspension 2880 6349
Max. front axle load 1200 2646
Max. rear axle load:

With coil springs 1720 3792

With self levelling suspension 1800 3968

IDENTIFICATION NUMBERS
05-1
IDE NTIFICATION NUMBERS
Vehicle Identification Number
Location
The Vehicle Identification Number (VIN) plate is
stamped on a plate attached to the bonnet locking
platform. The VIN is also stamped in the following
locations:
lOn a plate behind the LH lower corner of the
windscreen.
lOn the chassis RH longitudinal behind the rear
wheel.
Bonnet locking platform VIN
Windscreen VINChassis VIN
VIN plate content
The VIN plate contains the following information.
aVehicle Identification Number (VIN)
bGross vehicle weight
cGross train weight
dMaximum front axle load
eMaximum rear axle load
fPaint code
gTrim code

TORQUE WRENCH SETTINGS
06-1
TORQUE WRE NCH SETTINGS
Maintenance
TORQUE DESCRIPTION METRIC IMPERIAL
Wheel nuts140 Nm (103 lbf.ft)
V8 oil drain plug33 Nm (24 lbf.ft)
Td5 oil drain plug23 Nm (17 lbf.ft)
Oil filter element, tighten two thirds of a turn by hand or to - 17 Nm (13 lbf.ft)
Manual gearbox oil drain plug 50 Nm (37 lbf.ft)
Manual gearbox oil filler/level plug 30 Nm (22 lbf.ft)
Automatic gearbox oil drain plug 15 Nm (11 lbf.ft)
Automatic gearbox oil drain plug 30 Nm (22 lbf.ft)
Transfer gearbox oil drain plug 30 Nm (22 lbf.ft)
Transfer gearbox oil filler/level plug 25 Nm (18 lbf.ft)
Axle oil drain plug 64 Nm (47 lbf.ft)
Axle oil filler/level plug 10 Nm (7 lbf.ft)