heater LAND ROVER DISCOVERY 2002 Service Manual

INTERIOR TRIM COMPONENTS
REPAIRS 76-3-15
Louvre panel assembly - centre fascia
$% 76.46.42
Remove
1.Remove radio cassette player from fascia.

+ IN CAR ENTERTAINMENT,
REPAIRS, Radio cassette player.
2.Carefully release and remove radio DIN socket
from louvre panel.
3.Remove screw cover from radio aperture.
4.Remove drink tray assembly.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Drink tray assembly - centre
fascia.
5.Carefully release clock assembly from louvre
panel.
6.Disconnect multiplugs from clock and door
locking switch. Remove clock assembly.7.Carefully release switch pack from louvre
panel.
8.Disconnect multiplugs from switches and
remove switch pack.
9. Models without A/C: Carefully remove blower
speed and heater control knobs.
10. Models without A/C: Remove 2 screws
securing heater control panel graphic plate and
remove graphic plate.

INTERIOR TRIM COMPONENTS
76-3-16 REPAIRS
11. Models without A/C: Remove 4 screws
securing heater control panel to louvre panel.
12. Models with A/C: Carefully release ATC ECU
from louvre panel, disconnect multiplugs and
remove ATC ECU.13.Loosen 2 upper screws and remove 4
remaining screws securing louvre panel to
fascia.
14.Remove louvre panel assembly.
15.Remove seals from face level vents.
Refit
1.Fit seals to face level vents on new louvre
panel.
2.Fit louvre panel to fascia and secure with
screws.
3. Models with A/C: Connect multiplugs to ATC
ECU and fit ATC ECU to fascia.
4. Models without A/C: Fit screws securing
heater control panel to louvre panel.
5. Models without A/C: Fit heater control panel
graphic plate and secure with screws.
6. Models without A/C: Fit blower speed and
heater control knobs.
7.Position switch pack, connect multiplugs to
switches and fit switch pack to louvre panel.
8.Position clock assembly, connect multiplug to
clock and door locking switch and fit clock
assembly to louvre panel.

SCREENS
REPAIRS 76-4-1
SCREENS REPAIRS
Glass/sealing rubber - tail door
$% 76.31.22
Remove
1.Remove spare wheel from rear door.
2.Remove centre high mounted stop lamp.

+ LIGHTING, REPAIRS, Lamp - stop -
centre high mounted (CHMSL).
3.Pull the rear wiper arm away from the glass.
4.Disconnect leads from rear window heater.
5.Ease glass sealing rubber from tail door flange
and with assistance, from inside push the glass
and sealing rubber out.
6.Remove sealing rubber from glass. Refit
1.Thoroughly clean the tail door glass mounting
flange.
2.Clean glass and fit sealing rubber. Ensure
sealing rubber is fully located onto glass.
3.Fit a draw cord into the outside groove of the
sealing rubber with cord ends situated on top
corner of bend at bottom of glass.
4.To aid assembly, lubricate the tail door glass
mounting flange with liquid soap.
5.Position the assembled glass and rubber to
outside of flange.
6.With assistance from second operator pushing
glass into door, hold one end of cord and pull
the other end carefully around the aperture,
easing the rubber seal over the flange.
7.Connect leads to rear window heater.
8.Fit centre high mounted stop lamp.

+ LIGHTING, REPAIRS, Lamp - stop -
centre high mounted (CHMSL).
9.Fit rear wiper onto glass.
10.Fit spare wheel.

SCREENS
76-4-2 REPAIRS
Windscreen
$% 76.81.01
Introduction
The following equipment is required:
lCutting wire and handles.
lKent cutting knife.
lGlazing knife.
lWindscreen repair kit.
lSealant applicator gun.
lSuction cups.
lA felt covered table or stand to support glass.
WARNING: Wear protective gloves when
handling glass, solvents and primers.
WARNING: Wear suitable eye protection when
removing and refitting glass.
WARNING: If glass has splintered, protect eyes
and operate demister blower to remove glass
from heater ducts. Use a vacuum cleaner to
remove glass from fascia, carpet and seats.
Remove
1.Remove air intake plenum.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
2.If fitted, disconnect screen heater multiplugs.
3.Remove top corner trim finishers from body.
4.Remove windscreen top finisher and discard.
5.Release interior mirror from slug and tie aside.
6.Fit protection to exterior body work adjacent to
screen.
7.Cover body panels adjacent to glass.
8.Cover heater ducts with masking tape.
9.Cover interior of vehicle with protective sheet.

SCREENS
76-4-4 REPAIRS
15.Apply a continuous bead of sealant to sealant
face on screen as shown.
16.With assistance, lift screen into place and align
to screen supports and tape. Ensure top
finisher is located into correct position. Lightly
press glass to fully seat sealer.
CAUTION: Do not apply heavy pressure to
the sides of the windscreen. Lightly press
windscreen from centre outwards until
edges are to required gap. Pushing sides
into position can bend windscreen and lead
to cracking in service.
17.Remove protective covers and tape.
18.Test sealer for leaks, apply additional sealer if
necessary. If water is used, allow sealer to dry
before testing. Spray water around glass and
check for leaks. Mark any area that leaks. Dry
glass and sealer then apply additional sealer.
19.Fit interior mirror to slug.
20.If applicable, connect screen heater multiplugs.
21.Fit air intake plenum.

+ HEATING AND VENTILATION,
REPAIRS, Plenum Air Intake.
CAUTION: A curing time of 6 hours is
desirable. During this time leave a window
open to ventilate the vehicle interior. If the
vehicle must be used before the curing time
has elapsed, do not drive at speed or slam
the doors with the windows closed.
CAUTION: Vehicles fitted with a passenger
airbag should not be driven for 24 hours.
Glass - body side - rear
$% 76.81.18
Introduction
The following equipment is required:
lCutting wire and handles.
lKent cutting knife.
lGlazing knife.
lWindscreen repair kit.
lSealant applicator gun.
lSuction cups.
lA felt covered table or stand to support glass.
WARNING: Wear protective gloves when
handling glass, solvents and primers.
WARNING: Wear suitable eye protection when
removing and refitting glass.
Remove
1.If fitted, disconnect coaxial cable from terminal
on glass.
2.Fit protection to exterior body work adjacent to
glass.
3.Cover body panels adjacent to glass.
4.Fit protection to internal trim adjacent to glass.
5.Cover interior of vehicle with protective sheet.

SEATS
DESCRIPTION AND OPERATION 76-5-9
DESCRIPTION AND OPERAT ION
Heated seat component location
1Heater module
2Seat heater switches

SEATS
76-5-10 DESCRIPTION AND OPERATION
Heated seat block diagram (electric
seats)
1Passenger compartment fuse box
2Left seat heater switch
3Left seat heater module
4Left seat cushion heater element
5Left seat squab heater element
6Right seat heater switch
7Right seat heater module
8Right seat cushion heater element
9Right seat squab heater element

SEATS
DESCRIPTION AND OPERATION 76-5-11
Description - heated seats
Heated seats
The heated seat system is available on both manual seats and electric seats. The electrical sub-system consists of
the following components:
lSeat heater switches.
lSeat heater elements.
lTemperature control unit (if electric seats are fitted).
lTemperature sensor (if electric seats are fitted).
lThermostat (if manual seats are fitted).
Seat heater switches
The seat heater switches supply an ignition feed to either the temperature control unit (vehicles with electric seats) or
directly to the seat heater elements (vehicles with manual seats). When a seat heater switch is operated, current flows
to the seat heater elements causing them to heat the seat.
The ignition feed comes from fuse 15 in the passenger compartment fuse box.
Seat heater elements
The seat heater elements are located in the seat cushion and squab. The cushion and squab heater elements are
wired in series. Total power consumption at 13.5 volts is approximately 115 Watts.
The cushion heater element has an input feed from the temperature control unit or heater switch and an output to the
squab heater element, which outputs to earth.

SEATS
76-5-12 DESCRIPTION AND OPERATION
Temperature control unit
The temperature control unit is only fitted to vehicles with electric seats. Feed back of the seat temperature is via a
Negative Temperature Coefficient (NTC) sensor within the seat cushion. Resistance of this sensor changes with the
temperature of the seat cushion allowing the temperature control unit to lower or raise the voltage to the seat heater
elements to raise or lower their temperature.
An ignition feed is supplied via the seat heater switch. The temperature sensor supplies an input. Output is a supply
to the cushion heater element and an earth.
Thermostat
On vehicles with non electric seats, the temperature is controlled by a thermostat located in the seat cushion. The
thermostat interrupts the power supply when it reaches a pre-determined temperature.

SEATS
DESCRIPTION AND OPERATION 76-5-13
Operation - heated seats
When the seat heater switch is operated, power is supplied to the heater elements in the seat, causing the seat to
heat up. On vehicles fitted with non electric seats, the thermostat switches the power supply to the heater elements
on and off. On vehicles fitted with electric seats, the temperature control unit senses seat temperature via the sensor
in the cushion and regulates voltage to the seat heater elements to maintain a constant temperature.
On both electric and non electric seats, the heater elements increase and then maintain the seat at a temperature
between 26 and 36
°C (79 and 97 °F).