1995 LAND ROVER DISCOVERY ad blue

GENERAL SPECIFICATION DATA
11
INFORMATION SUSPENSION
Type Coil springs controlled by telescopic dampers front.................................................................................
and rear.
Front Lateral location of axle by Panhard rod, and.................................................................................
longitudinal location by two radius arms.
Rear Lateral location of axle by a centrally positioned 'A'.................................................................................
frame bolted at the apex to a ball joint mounting.
Longitudinal location of axle by two tubular trailing
links.
ROAD SPRING DATA
V8i - Mpi
LEFT HAND DRIVE Part No Colour Code
Left hand front NRC 4306 Blue/White
Right hand front 572315 Blue
Left/Right hand rear ANR 3477 or Brown/Green
ANR 4352 Orange/Orange *
RIGHT HAND DRIVE Part No Colour Code
Left hand front 572315 Blue
Right hand front 572315 Blue
Left/Right hand rear ANR 3477 or Brown/Green
ANR 4352 Orange/Orange *
Tdi Diesel
RIGHT HAND DRIVE Part No Colour Code
Left hand front ANR 1975 or Blue/Pink/Red
ANR 4350 Brown/Brown **
Right hand front ANR 1976 or Blue/Pink/Yellow
ANR 4351 Grey/Grey **
Left/Right hand rear ANR 3477 or Brown/Green
ANR 4352 Orange/Orange *
LEFT HAND DRIVE Part No Colour Code
Left hand front ANR 1976 or Blue/Pink/Yellow
ANR 4351 Grey/Grey **
Right hand front ANR 1975 or Blue/Pink/Red
ANR 4350 Brown/Brown **
Left/Right hand rear ANR 3477 or Brown/Green
ANR 4352 Orange/Orange *
* VIN 119534 onwards
** VIN 116461 onwards

19FUEL SYSTEM
4
REPAIR MULTIPORT FUEL INJECTION RELAYS
Service repair no - 19.22.08
The two Multiport fuel injection relays are located in
the RH footwell area behind the 'A' post trim panel.
The fuel injection relays can be identified as follows:
A. Fuel pump relay - Blue base
B. Main relay - Black base
Remove
1.Release front door seal from 'A' post.
2.Remove lower 'A' post trim panel.
3.Pull relay from base.
Refit
4.Reverse removal procedure.ENGINE CONTROL MODULE (ECM)-14 CUX
Service repair no - 19.22.34
NOTE: The ECM is not serviceable, in
event of unit failure it must be replaced.
Remove
1.Remove the fascia right-hand closing panel.
2.Remove the right-hand footwell side panel trim.
3.Disconnect battery negative lead.
4.Release ECM plug retaining clip.
5.Maneouvre the front of the plug (in the direction
of the bold arrow) and detach the other end of
the plug from the retaining peg.
6.Release the two screws securing the ECM to the
right-hand footwell side panel.
7.Withdraw the ECM from the clip.
Refit
8.Refit the ECM securely in the clip and fit the two
screws.
9.Reconnect the ECM harness plug. Ensure that
the plug is pushed firmly into its location and that
the retaining clip secures the plug in position.
10.Reverse removal procedure.

BRAKES
3
DESCRIPTION AND OPERATION Description of components
1. ABS Modulator unit
To provide the ABS function a Modulator is positioned
within the system between the master cylinder and the
calipers. On both LHD and RHD vehicles it is sited on
the left inner wing [fender]. The Modulator has 8
solenoid valves, 2 for each wheel, 2 expanders and a
recirculation pump. It is non serviceable.
2. Servo/master cylinder
Actuation of the system is provided by a combined
master cylinder and servo assembly attached to the
pedal box, this provides pressure to opposed piston
calipers at each brake pad Twin piston at the front
axle, single piston at the rear.
3. Pressure reducing valve
To maintain the braking balance, pressure to the rear
axle is regulated by a Pressure Reducing Valve (PRV)
This PRV is of the failure bypass type, allowing full
system pressure to the rear axle in the event of a front
circuit failure. It is sited on the left inner wing [fender].
4. Electronic control unit - ECU
ABS control is provided by an electronic control unit
which is positioned on the passenger side of the
vehicle behind the dash panel/glove box.
The ECU, which is non-serviceable, is connected to
the ABS harness by a 35 way connector. non
serviceable.
The ECU continually monitors the brake system,
providing diagnostics in the event of a system
malfunction. Details of how to access the ECU
diagnostics are provided in the Electrical
Troubleshooting Manual.
5.& 6. Front and rear sensors/exciter rings - 4 off
A sensor is sited at each wheel, sensing a 60 tooth
exciter ring. When vehicle is in motion inductive
sensors send signals to ECU. Front exciter ring is
fitted to outside diameter of constant velocity joint
inside each front hub assembly. The rear exciter ring
is bolted to the rear of each brake disc bell.7. Diagnostic plug connection
A diagnostic plug is located behind the dash. To the
left of the steering column on LHD vehicles. To the
right of the steering column on RHD vehicles. It is a 5
way blue connector.
The location and identification of ABS electrical relays
are given in the Electrical Troubleshooting Manual.
For location and identification of ABS electrical fuses.
See ELECTRICAL, Repair, Fuse Box - Interioror.
See ELECTRICAL, Repair, Fuse Box - Engine
Compartment
ANTI-LOCK BRAKE SYSTEM - ABS
Manufactured by WABCO
Introduction
The purpose of ABS is to prevent vehicle wheels
locking during brake application, thus maintaining
vehicle steerability and stability. This allows vehicle to
be steered whilst brakes are applied, even under
emergency conditions, and to avoid obstacles where
there is sufficient space to redirect the vehicle.
WARNING: ABS is an aid to retaining
steering control and stability while
braking.
·ABS cannot defy the natural laws of physics
acting on the vehicle.
·ABS will not prevent accidents resulting from
excessive cornering speeds, following
another vehicle too closely or aquaplaning,
i.e. where a layer of water prevents adequate
contact between tyre and road surface.
·The additional control provided by ABS must
never be exploited in a dangerous or
reckless manner which could jeopardise the
safety of driver or other road users.
·The fitting of ABS does not imply that the
vehicle will always stop in a shorter stopping
distance.

SUPPLEMENTARY RESTRAINT SYSTEM
15
REPAIR AIRBAG MANUAL DEPLOYMENT
CAUTION: Deployment in the vehicle will
damage the steering wheel; if the vehicle
is not being scrapped deploy the module
away from the vehicle in accordance with the
separate procedure.
If a vehicle is to be scrapped and contains an
undeployed airbag module, the module must be
manually deployed. This operation should only be
carried out using the following recommended manual
deployment procedure.
Before deployment is started the deployment tool self
test procedure should be carried out.
Deployment tool SMD 4082/1 self test procedure
1.Insert BLUE and YELLOW connectors of tool
lead into corresponding sockets on face of tool.
2.Connect crocodile clips of second tool lead to
battery, RED to positive and BLACK to negative.
3.RED "READY" light should illuminate.
4.Press and hold both operating buttons.5.GREEN "DEFECTIVE" light should illuminate.
6.Release both operating buttons.
7.RED "READY" light should illuminate.
8.Disconnect tool from battery.
9.Disconnect blue and yellow connectors from tool
face sockets.
10.Self test now complete.
Deployment with module fitted to vehicle
These guidelines are written to aid authorised
personnel to carry out the safe disposal of the airbag
module when fitted to the vehicle.
WARNING: Only use the LAND ROVER
approved deployment equipment. Deploy
airbag module in a well ventilated
designated area. Ensure airbag module is not
damaged or ruptured before deploying.
1.Carry out deployment tool self test.
2.Release 2 turnbuckles securing lower panel to
dash, remove lower panel.

ELECTRICAL
3
DESCRIPTION AND OPERATION Radio frequency system
The RF system uses four frequencies according to
market. If the coaxial aerial is not fitted system
performance will be impaired. Both ECU and handset
have a colour coded label.
Frequency Colour Territory
ECU/Handset
433.92 MHz Blue/black........................... UK, Ireland........................
224.5 MHz, Yellow/yellow............................ France...................
433.92 MHz Blue/Purple........................... Germany......................
433.92 MHz Blue/blue........................... Europe, not France, Switzerland, Italy, Denmark,..........................
Germany
433.92 MHz White/Blue........................... Switzerland, Denmark.......................
315.0 MHz Green/green............................. Rest of world, Italy, Australia....................
315.0 MHz Orange/Green............................. Gulf, Japan..................
Partially armed mode
If a door, tailgate or bonnet [hood] is left open when
the system is armed, the LED will not light for 10
seconds indicating a mislock condition. Hazard lights
will not flash. If an open door or tailgate is causing the
mislock, the starter motor is disabled. The alarm will
sound if ignition is turned to start position. If an open
bonnet [hood] is causing the mislock the starter motor
is disabled. The alarm will arm the volumetric part of
the system. If the door tailgate or bonnet [hood] is
subsequently closed, after a 5 second delay, the
doors will unlock and immediately lock and the system
will fully arm.
Handset transmitter
The handset LED will give one short flash when
button is pressed momentarily.
If button is held down the LED will light again after 2
seconds for 2 seconds, and extinguish until button is
released and repressed. The handset contains unique
information distinguishing it from other transmitters. It
also contains a set of 'random' rolling codes
programmed into the ECU before leaving the factory.
Each time the handset is pressed a different code is
transmitted to the ECU.
If handset is operated more than four times outside
the vehicle range (6 metres) or power supply is
removed, it will be necessary to re-sychronise handset
and the ECU by pressing the handset three times
within range and within 5 seconds.
NOTE: If both handsets are lost or
damaged when system is armed it will be
necessary to fit a new ECU with two
matching handsets.
Handset batteries
If handset LED flashes continuously when button is
pressed, the batteries need replacing. The hazard
lights will flash one 3 second pulse, instead of three
times upon arming vehicle.
Power up mode
The alarm system always remembers the state it was
left in when power was removed. If the alarm powers
up in an armed state and is subsequently triggered it
will give a warning that it will fully trigger unless
disarmed. This warning consists of short horn pulses
every two seconds for 15 seconds.
New born mode
When the ECU is first produced, it will be in its 'new
born' mode. In this mode it will respond to any remote
of the right frequency. This mode will be cancelled
when the ECU has received ten valid handset signals
without power interruption.
Engine cranking
It is only possible to crank the engine when ignition is
ON and alarm disabled.

86ELECTRICAL
10
DESCRIPTION AND OPERATION Radio frequency system
The RF system uses frequencies according to market
and both ECU and handset are colour coded:
Territory ECU/Handset............................... Frequency..................
Europe Blue/Blue.................................. 433.92 MHz.........................
NAS Green/Green....................................... 315.00 MHz....................
Japan Green/Green.................................... 315.00 MHz....................
Gulf Green/Green....................................... 315.00 MHz....................
Rest of World Green/Brown........................ 315.00 MHz...................
NOTE: In service NAS, Japan and Gulf will
have the handset changed to brown.
Passive coil
The passive coil excites a receiving coil in the handset
causing it to automatically transmit a remobilisation
signal to the ECU.
Inertia switch and central door locking
Actuation of the inertia switch will cause the doors to
be unlocked. A time-out period (programmable
between 0-5 minutes) will ensue, during which all CDL
and alarm activity is disabled.
NOTE: This feature only applies when the
starter switch is in the on position.
Handset
Under normal circumstances pressing the respective
buttons on the handset once, will unlock or lock the
vehicle. If operating the handset does not achieve the
desired effect
See Repair, Handset.
Functional detail
For full functional details and circuit diagrams
See
Electrical Trouble Shooting Manual..
Vehicle traceability
All Land Rover vehicles are fitted with a multitude of
discreet security features to prevent theft or assist
recovery in the event of a vehicle being stolen. All
vehicles are traceable, since it is impossible to
remove all security identification.

ENGINE
OVERHAUL25
9.Cut valve seat insert using light hand pressure.
CAUTION: Remove the minimum amount
of material necessary to obtain correct
valve seat face.
10.Smear Prussian Blue to seating face of a
correctly ground valve.
11.Insert valve into guide and press it firmly,
without rotating on to seat insert, remove valve.
12.Check that an even line of Prussian Blue has
been transferred to centre of valve seat insert,
continue cutting operation as necessary until
this has been achieved.
13.Upon completion, remove all traces of swarf.Valve seat inserts - renew
1.Remove original valve seat insert taking care
not to damage cylinder head.
2.Thoroughly clean valve seat insert recess.
3.Heat cylinder head to 65°C.
WARNING: Take care when handling hot
cylinder head.
4.Place cylinder head on bed of hand press and
using a suitable mandrel, press replacement
seat insert into recess.
5.Allow cylinder head to air cool.
6.Check that seat insert is seated squarely in
recess.

ENGINE
26
OVERHAUL Lapping-in valves
1.Lap each valve to its seat using grinding paste.
2.Apply Prussian Blue to valve seat insert. Insert
valve into guide and press it firmly, without
rotating on to seat.
3.Remove valve and check that a continuous,
even line of Prussian Blue has been
transferred to valve face, continue lapping-in
valve as necessary.
NOTE: Line does not have to be across
whole width of valve face.
4.Remove all traces of grinding paste on
completion.
5.Check valve head stand down of each valve.Valve head stand down - checking
1.Insert each valve into its respective guide.
2.Using a straight edge and feeler gauges, check
and record stand down of each valve head.
3.Compare figures obtained with those given
below. If any valve head has a stand down
outside that specified, valve and/or seat insert
must be replaced.
Valve head stand down:
Inlet valveA= 0.81 to 1.09 mm
Exhaust valveB= 0.86 to 1.14 mm