heater LAND ROVER DEFENDER 1999 Owner's Guide

PANEL REPAIRS
3
REPAIR WHEEL ARCH - FRONT
Remove
The procedure to change the Inner Front Wheelarch is
the same as for the Wing Upper, except for removal of
the ABS sensors and shield, if fitted.
BULKHEAD ASSEMBLY
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove front lower wing.See this Section.
3.Remove RH and LH front upper wing.See this
Section.
4.Remove headlamp mounting panels.See this
Section.
5.Remove screen aperture.See this Section.
6.Remove both front doors.
7.Remove lower fascia panel.See CHASSIS
AND BODY, Repair.
8. Models with A/C:Remove relevant A/C pipes.
9.Remove front grille.
10.Drain cooling system.See COOLING
SYSTEM, Adjustment.
11.Remove radiator and intercooler.
12. Models with A/C:Remove condensor.
13.Remove air cleaner assembly.
14.Remove heater unit.See HEATING AND
VENTILATION, Repair.
15.Remove brake servo assembly.
16.Remove heater ducts.
17.Remove both front seats.
18.Remove front carpets.
19.Release all relevant harnesses and position
aside.
20.Remove facia support bracket.
Refit
21.Prepare and clean panel joint faces. Ensure all
necessary grommets and sealant is applied to
new bulkhead.
22.Reverse removal procedure.
23.Bleed brake system.See BRAKES,
Adjustment.
24.Align headlamps.See ELECTRICAL,
Adjustment.
25.Water test after refitting.
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AIR CONDITIONING
1
REPAIR COMPRESSOR
Service repair no - 82.10.20
Remove
1.Remove engine acoustic cover.See ENGINE ,
Repair.
2.Depressurise A/C system.See Adjustment.
3.Remove auxiliary drive belt.See
ELECTRICAL, Repair.
4.Drain cooling system.See COOLING
SYSTEM, Adjustment.
5.Disconnect multiplug from compressor.
6.Remove 2 bolts securing air conditioning pipes
to compressor and discard’O’rings.
CAUTION: Immediately cap all air
conditioning pipes to prevent ingress of
dirt and moisture into the system.
7.Release clips and disconnect top hose from
coolant elbow and heater pipe.
8.Remove 4 bolts securing compressor to
mounting bracket.
9.Remove compressor.Refit
10.Position compressor to mounting bracket and
tighten bolts to25 Nm (18 lbf.ft).
11.Remove caps from compressor and pipe
connections.
12.Clean compressor and pipe connections.
13.Lubricate new’O’rings with refrigerant oil and fit
to compressor.
14.Position A/C pipes to compressor and tighten
bolts to9 Nm (7 lbf.ft).
15.Connect multiplug to compressor.
16.Position top hose and secure with clips.
17.Refill cooling system.See COOLING SYSTEM,
Adjustment.
18.Fit auxiliary drive belt.See ELECTRICAL,
Repair.
19.Recharge A/C system.See Adjustment.
20.Fit engine acoustic cover.See ENGINE ,
Repair.
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84WIPERS AND WASHERS
4
REPAIR 15.Fit nut plate and fit screws to secure nut plate
and closing panel.
16.Fit knobs to air vent control levers.
17.Fit fascia console.See CHASSIS AND BODY,
Repair.
18.Fit wiper arms.See this Section.
19.Connect battery negative lead.See
ELECTRICAL, Repair.WHEELBOX/DRIVE PIVOT - FROM 02MY
Service repair no - 84.15.25
Remove
1.Disconnect battery negative lead.See
ELECTRICAL, Repair.
2.Remove steering column nacelle.See
STEERING, Repair.
3.Remove wiper motor and drive rack.See this
Section.
4.Remove 2 screws and move heater fan switch
aside.
5.Remove 2 screws securing drivers side demister
duct.
6.Disconnect demister tube and remove duct.
7.Remove bolt and nut and bolt securing steering
column support bracket and remove bracket.
8.Remove 11 screws securing fascia support rail.
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WIPERS AND WASHERS
5
REPAIR
9.Remove cable ties securing washer tube to
windscreen wiper rack tube.
10.Loosen fully 4 nuts securing backplates to wheel
boxes and remove windscreen wiper rack tubes.
11.Remove seals from wheel box spindles.
12.Remove 2 nuts securing wheel boxes and
remove sealing washers.
13.Carefully pull fascia support rail from bulkhead
sufficiently to remove wheel boxes.
Refit
14.Loosen fully but do not remove nuts securing
wheel box back plates.
15.Grease wheel boxes.
16.Fit wheel boxes, fit sealing washers and tighten
nuts to5 Nm (3.7 lbf.ft).
17.Fit spindle seals.
18.Fit wiper rack tubes and tighten wheel box back
plate nuts sufficiently to hold tubes. Tighten
wheel box back plate nuts to6 Nm (4 lbf.ft)
after fitting windscreen wiper motor.
19.Align washer tube to rack tube and secure with
cable ties.
20.Align fascia support rail and secure with screws.
21.Fit steering column support bracket and tighten
bolt and nut and bolt to45 Nm (33 lbf.ft).
22.Fit demister duct to tube, align relay bracket and
secure duct with screws.
23.Position heater fan switch and secure with
screws.
24.Fit wiper motor and drive rack.See this
Section.
25.Fit steering column nacelle.See STEERING,
Repair.
26.Connect battery negative lead.See
ELECTRICAL, Repair.RELAY - WIPER DELAY - FROM 02MY
Service repair no - 84.15.37
Remove
1.Disconnect battery negative lead.See
ELECTRICAL, Repair.
2.Remove 4 screws securing instrument pack and
release pack from fascia.
3.Disconnect 2 multiplugs from warning lamp
panel.
4.Disconnect instrument pack multiplug from main
harness.
5.Remove instrument pack.
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86ELECTRICAL
22
DESCRIPTION AND OPERATION HEATED FRONT SEATS - FROM 02MY
1.LH and RH seat heater switches
2.Seat heater cushion and squab elements
3.Seat heat/Window lift relay (passenger compartment fuse box)
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ELECTRICAL
23
DESCRIPTION AND OPERATION Heated front seats are a new feature for 2002MY and are available as part of a cold climate pack on Td5 engine
variants only. The heated seats system comprises, two latching switches, a seat relay and heater elements.
The latching switches are located in the fascia. Each switch individually controls its related seat heater elements.
Each switch contains a tell tale lamp to indicate when the seat heaters are active. There is no timer function for the
seat heater operation and the seat heaters will remain active for as long as the switch is latched in and the ignition
is in position II.
The seat heater relay is located in the passenger compartment fuse box and shares its supply and operation with
the front window lift system. The relay receives a permanent battery voltage supply via fusible links 1 and 3 in the
under seat fuse box and fuse 28 in the satellite fuse box. The relay coil is connected to the ignition switch via fuse
7 in the passenger compartment fuse box and an earth point. When the ignition switch is moved to position II, the
relay coil is energised and the contacts close. Power is supplied from the relay to each of the seat heater
switches.
The heater elements are fitted in the seat cushion and squab on the drivers and passenger front seats and are
wired in series. The wiring looms for the elements is long enough to allow the seat squab to be lifted for access to
the under seat fuse box or the storage bin/battery without straining the wiring. The centre seat, if fitted, does not
have heater elements.
The cushion element receives the feed from the switch and contains a thermostatically controlled switch. When
the element temperature reaches 37±3°C (98±3°F) the thermostat cuts the supply to the cushion and squab
elements for that seat. As the temperature of the element falls to 28±3°C (82±3°F), the thermostat will close the
switch contacts allowing power to flow to both elements causing them to heat up again. In this way the thermostat
maintains the cushion and squab element temperatures between the figures stated.
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86ELECTRICAL
26
DESCRIPTION AND OPERATION PASSENGER COMPARTMENT FUSE BOX
FROM 02MY
The increase in electrical systems on Defender 02MY vehicles has necessitated an increase in the number of
fuses required.
The passenger compartment fuse box now contains three rows of fuses instead of the previous two rows and
relays to control the CDL system, heated front screen, headlamps, anti-theft alarm ECU and seat heaters and
window lift system.
1.Fuse 8 - Anti-theft alarm ECU/BBUS (10A)
2.Fuse 9 - Front wiper motor and washer pump
(15A)
3.Fuse 10 - Rear wiper relay (10A)
4.Fuse 11 - ABS ECU (10A)
5.Fuse 12 - Engine Control Module (10A)
6.Fuse 13 - Brake pedal switch (10A)
7.Fuse 14 - Reverse lamp switch/Glowplugs (10A)
8.Fuse 15 - Miscellaneous relay control. See
Electrical Library (5A)
9.Fuse 16 - Cigar lighter/Heater blower (20A)
10.Fuse 17 - Radio (5A)
11.Fuse 18 - LH side lamps/trailer pick up (10A)
12.Fuse 19 - RH side lamps/trailer pick up (10A)
13.Fuse 20 - Headlamp levelling/Illumination (10A)
14.Fuse 21 - Direction indicators (10A)
15.Fuse 22 - RH headlamp dip beam (10A)
16.Fuse 23 - LH headlamp dip beam (10A)
17.Fuse 24 - RH headlamp main beam (10A)
18.Fuse 25 - LH headlamp main beam (10A)19.Fuse 26 - Rear fog lamp ECU (10A)
20.Fuse 27 - Alarm relay (10A)
21.Fuse 28 - Air conditioning blower relay (30A)
22.Fuse 29 - Air conditioning compressor
relay/cooling fan relay (20A)
23.Fuse 30 - Interior lamps/radio/alarm
LED/clock/diagnostic socket/tachometer (South
African vehicles only) (5A)
24.Fuse 31 - Hazard warning lamps (15A)
25.Fuse 32 - Heated rear window (20A)
26.Fuse 33 - Seat heat relay (20A)
27.Fuse 34 - RH window lift switch (20A)
28.Fuse 35 - LH window lift switch (20A)
29.Fuse 36 - Heated front screen (30A)
30.Relay - Heated Front Screen
31.Relay - Starter motor
32.Relay - Heated Rear Window
33.Relay - Headlamps
34.Relay - Anti-theft alarm
35.Relay - Seat heat/window lift
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INSTRUMENTS
1
REPAIR INSTRUMENT PACK
Service repair no - 88.30.38
Remove
1.Remove 4 screws securing instrument pack to
fascia.
2.Release instrument pack from fascia.
3.Disconnect 3 instrument pack harness to main
harness multiplugs.
4.Remove instrument pack.
5.Disconnect 4 Lucars from left and right hand
heater controls.
6.Disconnect 7 multiplugs from rear of instrument
pack.
7.Remove clamping rings from 4 gauges.
8.Remove 4 gauges from instrument pack.
9.Remove 2 Torx screws securing warning lamp
assembly to instrument pack.
10.Remove warning lamp assembly from instrument
pack.
Refit
11.Fit warning lamp assembly to instrument pack
and secure with Torx screws.
12.Fit gauges to instrument pack and secure with
clamping rings.
13.Connect multiplugs to rear of instrument pack.
14.Connect Lucars to left and right hand heater
controls.
15.Position instrument pack to fascia and connect
instrument pack harness to main harness
multiplugs.
16.Fit instrument pack to fascia and secure with
screws.
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