1999 LAND ROVER DISCOVERY tow

SEATS
REPAIRS 76-5-17
4.Remove saddle bracket cover from lower rear
quarter to allow access to third row seat
securing bolts and nuts.
5.Remove top 2 bolts securing seat to lower rear
quarter panel.
6.Position the locally manufactured retainer
bracket across the seat mounting. Ensure that
the lugs on the end of the retainer fit below the
seat mounting bar, then partially fold the seat
so that the retainer bracket is held in position.
7.Remove lower 2 nuts securing seat to lower
rear quarter panel. The action of the spring will
now hold the retainer bracket in place.
8.Remove seat.Refit
1.Ensuring that the retainer bracket is in position
on the spring, position third row seat to its
mounting studs.
2.Fit nuts securing third row seat to lower rear
quarter panel and tighten to 22 Nm (16 lbf.ft).
3.Remove the retainer bracket, fit bolts securing
third row seat to lower rear quarter panel and
tighten to 22 Nm (16 lbf.ft).
4.Fit saddle bracket cover to third row seat
securing bolts, fit the cup holder (where
applicable) and stow the seat.

SEATS
REPAIRS 76-5-29
17.Release clip securing front of cover to squab
frame.
18.Release hooks from squab frame.
19.Fold cover upwards over squab until first row of
hog rings are visible.
20.Remove first row of hog rings. 21.Fold cover upwards over squab until second
row of hog rings are visible.
22.Remove second row of hog rings.
23.Push out centres of trim clips securing stowage
pocket elastic to seat frame.
24.Remove trim clip outers.
25.Release hooks from seat frame and feed
though to front of foam.
26.Fold cover upwards until third row of hog rings
are visible.
27.Remove third row of hog rings.
28.Remove hog rings securing rear of squab
cover to seat frame.
29.Release bar from seat frame.

SEATS
76-5-30 REPAIRS
30.Remove headrest guides.
31.Fold cover fully upwards and remove.
Refit
1.Fit squab cover to top of seat. Do not fold down
too far onto seat.
2.Fit headrest guides.
3.Fit grab handles to seat and secure with
screws.
4.Ensure top of cover fits correctly around grab
handles.
5.Fit bar securing rear of squab cover to seat
frame.
6.Fit hog rings securing rear of squab cover to
seat frame.
7.Pull cover down tight and align hog ring
location points.
8.Fit third row of hog rings.
9.Pull cover down tight and feed hooks though
foam.
10.Connect hooks to rear of squab frame.
11.Align stowage pocket elastic to seat frame and
secure with trim clips.
12.Pull cover down tight and align hog ring
location points.
13.Fit second row of hog rings.
14.Pull cover down tight and align hog ring
location points.
15.Fit first row of hog rings.
16.Pull cover down tight and connect hooks to
squab frame.
17.Feed front of cover through to rear.
18.Secure bottom of cover to frame with clip.
19.Fit clips securing ends of cover to frame.
20.Fit headrest to seat.
21.Turn seat upside down.
22.Secure rear edge of squab cover to frame with
clip.
23.Turn seat correct way up.
24.Fit inner edge trim casing to seat frame.
25.Fit outer edge trim casing and secure with
screws. 26.Position arm rest to seat, secure with screw and
loosen arm rest adjuster to the required
position.
27.Fit front seat.

+ SEATS, REPAIRS, Seat - front.

SUNROOF
76-6-18 REPAIRS
Motor - sunroof
$% 76.84.07
This procedure is applicable to the motor of both
sunroofs.
Remove
1.Gain access to the sunroof motor:
lFor front sunroof motor, remove front
stowage pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.
lFor rear sunroof motor, remove headlining.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Headlining.
CAUTION: The sunroof must be fully closed
before removing the sunroof motor.
2.Disconnect sunroof motor multiplug.
3.Remove 3 Torx screws securing motor to
sunroof tray.
4.Remove sunroof motor. Refit
1.Check sunroof motor timing notch (A) aligns
with edge of microswitch (B). If motor is out of
alignment, rotate counting wheel (C) to correct
position using an Allen key.
2.Ensure sunroof drive cables are in fully closed
position.
3.Fit motor to sunroof frame.
4.Fit Torx screws securing motor to sunroof tray
and tighten to 2 Nm (1.5 lbf.ft).
5.Connect sunroof motor multiplug.
6.Fit interior trim:
lFor front sunroof motor, fit front stowage
pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.
lFor rear sunroof motor, fit headlining.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Headlining.

SUNROOF
76-6-20 REPAIRS
Switch pack - sunroof
$% 76.84.44
Remove
1.Release switch pack from front stowage
pocket.
2.Disconnect multiplugs from 3 sunroof
switches.
3.Remove switches from switch pack.
Refit
1.Fit switches to switch pack.
2.Connect multiplugs to switches.
3.Fit switch pack to front stowage pocket.
ECU - sunroof
$% 76.84.46
Remove
1.Remove front stowage pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.
2.Remove 2 screws securing ECU to roof.
3.Disconnect 2 multiplugs from ECU.
4.Remove sunroof ECU.
Refit
1.Position sunroof ECU and connect multiplugs.
2.Fit and tighten screws securing ECU to roof.
3.Fit front stowage pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.

CORROSION PREVENTION AND SEALING
77-4-6 CORROSION PREVENTION
Corrosion prevention
Factory treatments
During production, vehicle bodies are treated with the following anti-corrosion materials:
lA PVC-based underbody sealer which is sprayed onto the underside of the main floor, rear floor, front and rear
wheelarches and the front valance assembly;
lAn application of cavity wax which is sprayed into the sill panels, 'A' post, 'B-C' post, fuel filler aperture, body rear
panel and the lower areas of the door panels;
lA coating of underbody wax which is applied to the entire underbody inboard of the sill vertical flanges, and
covers all moving and flexible components EXCEPT for wheels, tyres, brakes and exhaust;
lA coat of protective wax applied to the engine bay area.
Whenever body repairs are carried out, ensure the anti-corrosion materials in the affected area are repaired or
renewed as necessary using the approved materials.

+ BODY SEALING MATERIALS, MATERIALS AND APPLICATIONS, Approved materials.
Precautions during body repairs and handling
Take care when handling the vehicle in the workshop. Underbody sealers, seam sealers, underbody wax and body
panels may be damaged if the vehicle is carelessly lifted.

+ LIFTING AND TOWING, LIFTING.
Proprietary anti-corrosion treatments
The application of proprietary anti-corrosion treatments, in addition to the factory-applied treatment, could invalidate
the Corrosion Warranty and should be discouraged. This does not apply to Rover approved, compatible, preservative
waxes which may be applied on top of existing coatings.
Fitting approved accessories
When fitting accessories ensure that the vehicle's corrosion protection is not affected, either by breaking the protective
coating or by introducing a moisture trap.
Do not screw self-tapping screws directly into body panels. Fit suitable plastic inserts to the panel beforehand. Always
ensure that the edges of holes drilled into panels, chassis members and other body parts are protected with a suitable
zinc rich or acid etch primer, and follow with a protective wax coating brushed onto the surrounding area.
Do not attach painted metal surfaces of any accessory directly to the vehicle's bodywork unless suitably protected.
Where metal faces are bolted together always interpose a suitable interface material such as weldable zinc rich
primer, extruded strip, or zinc tape.
Steam cleaning and dewaxing
Due to the high temperatures generated by steam cleaning equipment, there is a risk that certain trim components
could be damaged and some adhesives and corrosion prevention materials softened or liquified.
Adjust the equipment so that the nozzle temperature does not exceed 90° C (194° F). Take care not to allow the steam
jet to dwell on one area, and keep the nozzle at least 300 mm (11.811 in) from panel surfaces.
DO NOT remove wax or lacquer from underbody or underbonnet areas during repairs. Should it be necessary to
steam clean these areas, apply a new coating of wax or underbody protection as soon as possible.
Inspections during maintenance servicing
It is a requirement of the Corrosion Warranty that the vehicle body is checked for corrosion by an authorised Land
Rover Dealer at least once a year, to ensure that the factory-applied protection remains effective.
Service Job Sheets include the following operations to check bodywork for corrosion:
lWith the vehicle on a lift, carry out visual check of underbody sealer for damage;
lWith the vehicle lowered, inspect exterior paintwork for damage and body panels for corrosion.
It will be necessary for the vehicle to be washed by the Dealer prior to inspection of bodywork if the customer has
offered the vehicle in a dirty condition.

HEATING AND VENTILATION
DESCRIPTION AND OPERATION 80-9
FBH fuel pump
The FBH fuel pump regulates the fuel supply to the FBH unit. The FBH fuel pump is installed in a rubber mounting on
the chassis crossmember immediately in front of the fuel tank. The pump is a self priming, solenoid operated plunger
pump, with a fixed displacement of 0.063 ml/Hz. The ECU in the FBH unit outputs a pulse width modulated signal to
control the operation of the pump. When the pump is de-energised, it provides a positive shut-off of the fuel supply to
the FBH unit.
FBH fuel pump nominal operating speeds/outputs
Sectioned view of FBH fuel pump
1Solenoid coil
2Plunger
3Filter insert
4Fuel line connector
5'O' ring seal6Spring
7Piston
8Bush
9Fuel line connector
10Non return valve
The solenoid coil of the FBH fuel pump is installed around a housing which contains a plunger and piston. The piston
locates in a bush, and a spring is installed on the piston between the bush and the plunger. A filter insert and a fuel
line connector are installed in the inlet end of the housing. A non return valve and a fuel line connector are installed
in the fuel outlet end of the housing.
While the solenoid coil is de-energised, the spring holds the piston and plunger in the 'closed' position at the inlet end
of the housing. An 'O' ring seal on the plunger provides a fuel tight seal between the plunger and the filter insert,
preventing any flow through the pump. When the solenoid coil is energised, the piston and plunger move towards the
outlet end of the housing, until the plunger contacts the bush, and draw fuel in through the inlet connection and filter.
The initial movement of the piston also closes transverse drillings in the bush and isolates the pumping chamber at
the outlet end of the housing. Subsequent movement of the piston then forces fuel from the pumping chamber through
the non return valve and into the line to the FBH unit. When the solenoid coil de-energises, the spring moves the piston
and plunger back towards the closed position. As the piston and plunger move towards the closed position, fuel flows
passed the plunger and through the annular gaps and transverse holes in the bush to replenish the pumping chamber.
Operating phase Speed, Hz Output, l/h (US galls/h)
Start sequence 0.70 0.159 (0.042)
Part load 1.35 0.306 (0.081)
Full load 2.70 0.612 (0.163)

BODY CONTROL UNIT
86-3-14 DESCRIPTION AND OPERATION
Central Door Locking (CDL)
The BCU carries out the logic control operation for CDL. A CDL switch is mounted on the fascia panel and has two
inputs to the BCU, one for lock and one for unlock.
Door locking and unlocking can be performed using the remote transmitter in the keys and the receiver unit located
above the vehicle's headlining, behind the rear sunroof aperture. The receiver detects the signals sent from the
remote transmitter and sends a decoded signal to the BCU for processing.
Four methods of door locking are available:
lRemote handset locking.
lVehicle key locking.
lCDL switch locking.
lSpeed related locking.
Two security levels of door locking are available, CDL and Superlocking. The anti-theft alarm system works in
conjunction with the CDL system.
Electric windows and sunroof
The BCU controls the logical operations and the timing periods for the electric front windows. The rear windows are
hard-wired and the two electric sunroofs are controlled by a dedicated ECU which is enabled by the BCU.
The front windows are electrically operated using two rocker switches located in the centre console. Electric motors
are located in each of the front doors.
The rear windows are enabled by the IDM controlling the operation of the rear window relay located in the passenger
compartment fuse box.
Wipers and washers
The wiper and washer functions are controlled by the BCU and the IDM.
The front wipers and washers are operated from the switch stalk located on the right hand side of the steering column
and only operate when the ignition switch is in position I or II. The front wipers are operated by a motor located below
the windscreen plenum.

+ WIPERS AND WASHERS, DESCRIPTION AND OPERATION, Description.
The BCU controls the wiper motor frequency of operation via the IDM when intermittent wipe or wash is selected. The
front intermittent wipe option features five different intermittent delay periods. The shortest delay period is 3 seconds
and this is increased by 2 second increments up to a maximum delay of 11 seconds. The desired delay period for the
front wipers is set by the position of the rotary switch located on the wiper column stalk.
The rear wiper switch is located on the instrument pack cowl and is latched when pressed. The rear wiper electric
motor is located in the tail door. The rear wiper operation is controlled according to a programmed strategy via the
BCU and the IDM. The BCU also checks for a signal from either the reverse lamp switch located in the vehicle gearbox
(manual gearbox models) or the gear position switch (automatic gearbox models) for operating the rear wipers when
the vehicle is in reverse. The rear wiper and washer only operate when the ignition switch is in position II.
The front and rear washer pumps and the headlamp powerwash (where fitted) are also controlled through the BCU.
The washers are operated from electric pumps attached to the washer reservoir located in the left hand wheel arch.
The front wash switch is located on the wiper column stalk and is pulled towards the steering wheel to select the
washer function. When the front washers are operated, the wipers are also activated for three full cycles. The rear
wash switch is located on the instrument pack cowl. The BCU programme can be configured in one of two modes of
operation:
lNo wiper operation when the wash switch is pressed.
lWiper action after an initial delay of 400 ms.
Headlamp wash is activated by the BCU via the IDM and operates when the headlamps are on and the front washers
function is selected.