ecu LAND ROVER DEFENDER 1999 Workshop Manual

PANEL REPAIRS
5
REPAIR SILL - FRONT
Remove
NOTE: The procedure to replace the rear
sill section is the same as the front.
1.Remove bolts securing sill to body, discard seal.
Refit
NOTE: Front sill
NOTE: Rear sill
2.Prepare and clean panel joint faces. Refit new
seal.
3.Reverse removal procedure.’B/C’&’D’POST
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove rear door and striker.
3.Remove front seat belt reel.See CHASSIS
AND BODY, Repair.
4.Remove front and rear carpets.
5.Remove front seat.
6.Remove rear seat.
7.Remove front, centre and rear sections of
headlining.
NOTE: Assembly is held on with bolts.
Refit
8.Prepare and clean panel joint faces.
9.Reverse removal procedure.
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77PANEL REPAIRS
6
REPAIR CORNER CAPPING
The Corner Capping is not replaced as a single panel.
It is replaced in conjunction with either the Body Side
Lower Panel or Body Side Assembly. The procedure
to replace the Corner Capping is shown in the Body
Side Lower Panel procedure.
BODY SIDE CAPPING
The Body Side Capping is not replaced as a single
panel. It is replaced in conjunction with either the
Body Side Lower Panel or Body Side Assembly. The
procedure to replace the Body Side Capping is shown
in the Body Side Lower Panel procedure.
BODY SIDE REAR - UPPER
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove front, centre and rear sections of
headlining.
3.Release upper edge of front door aperture seal.
4.Release upper edge of rear door aperture seal.
5.Remove fixings from front edge of roof, and
along side being replaced.
6.Release sealant securing front edge of roof.
7.Insert wedges into top of both’B/C’posts. This
will allow access for removal of body side.
8. RH side:Remove tail door.See CHASSIS
AND BODY, Repair.
9.Remove side window.
10.Remove rear sixth light.
11.Remove all bolts securing upper body side.
Refit
12.Prepare and clean panel joint faces.
13.Reverse removal procedure.
NOTE: When refitting, ensure body side
upper is correctly fitted onto location pins.
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PANEL REPAIRS
7
REPAIR BODY SIDE REAR - LOWER - ASSEMBLY
In this procedure the Body Side Capping and the
Corner Capping are also changed.
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove body side upper rear.See this
Section.
3.Remove all rear lamps and reflectors.
4. LH side:Remove number plate and lamp.
5. LH side:Remove tail door striker.
6. RH side:Remove fuel filler and grommet.
7.Remove all bolts and rivets securing lower body
side assembly.
Refit
8.Prepare and clean panel joint faces.
9.Reverse removal procedure.
NOTE: When refitting, ensure body side
upper is correctly fitted onto location pins.
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77PANEL REPAIRS
10
REPAIR ROOF ASSEMBLY
Remove
1.Disconnect both battery leads, negative lead
first.
2.Remove rear bench seats.
3.Remove front, centre and rear sections of
headlining.
4.Remove all bolts securing roof.
NOTE: Carefully cut sealant securing front
edge of roof to windscreen aperture.
Refit
5.Prepare and clean panel joint faces.
6.Reverse removal procedure.
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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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82AIR CONDITIONING
2
REPAIR MOTOR - CONDENSER FAN
Service repair no - 82.15.01
Remove
1.Remove 6 screws and remove radiator grille.
2.Disconnect fan multiplug and release multiplug
holder from retaining clip.
3.With assistance remove 4 nuts and bolts
securing motor to condenser.
4.Remove motor.
Refit
5.Position motor to condenser and with assistance
tighten nuts and bolts to8 Nm (6 lbf.ft).
6.Connect motor multiplug.
7.Position radiator grille and secure with screws.RECEIVER DRIER
Service repair no - 82.17.03
Remove
1.Recover refrigerant from A/C system.See
Adjustment.
2.Remove 2 bolts securing pipe unions to receiver
drier.
3.Release pipes and discard’O’rings.
CAUTION: Immediately cap all air
conditioning pipes to prevent ingress of
dirt and moisture into the system.
4.Remove 2 bolts securing receiver drier mounting
bracket to chassis.
5.Remove receiver drier, slacken clamp bolt and
remove bracket.
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82AIR CONDITIONING
4
REPAIR EVAPORATOR
Service repair no - 82.25.20
Remove
1.Remove battery cover.
2.Recover refrigerant from A/C system.See
Adjustment.
3.Remove 2 bolts securing A/C pipes to
evaporator.
4.Release pipes and discard’O’rings.
CAUTION: Immediately cap all air
conditioning pipes to prevent ingress of
dirt and moisture into the system.
5.Remove 2 screws and release fuse/relay bracket
from body and collect 2 spacers.
6.Remove 8 screws securing speakers to A/C
duct.
7.Disconnect speaker Lucars and remove
speakers.
8.Remove 4 screws and bolt securing A/C duct to
fascia panel.
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82AIR CONDITIONING
6
REPAIR Refit
20.Clean TXV and mating face.
21.Lubricate new’O’rings with refrigerant oil and fit
’O’rings to pipes.
22.Position TXV and tighten Allen screws.
23.Position evaporator and fit sensor.
24.Position cover and tighten screws.
25.Clean pipes and mating faces.
26.Lubricate and fit new’O’rings, position pipes
and tighten Allen screw.
27.Connect trinary switch multiplug.
28.Position blower unit,tighten screws and connect
multiplugs.
29.With assistance position A/C duct assembly to
vehicle.
30.Connect drain pipe to evaporator.
31.Connect multiplug to relay bracket.
32.Align A/C duct to fascia, tighten securing bolt
and screws.
33.Position speakers and connect Lucars.
34.Position relay bracket and tighten bolts.
35.Clean pipes and mating face.
36.Lubricate and fit new’O’rings to evaporator
pipes.
37.Position pipes and tighten bolts to6Nm(4
lbf.ft).
38.Renew receiver drier.See this Section.
39.Recharge A/C system.See Adjustment.
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WIPERS AND WASHERS
3
DESCRIPTION AND OPERATION Although windscreen wiper functionality remains the same, the mechanical architecture has undergone significant
changes. The body structure has undergone some minor changes to house the revised wiper linkage.
A modified wiper motor is introduced which is balanced to reduce operation noise. The brush plate is fitted with
capacitors to reduce radio interference and a thermal cut-out is introduced to prevent motor burnout. The motor
also contains a new park switch which also reduces operation noise. A common motor is now used on both LHD
and RHD variants.
The motor is repositioned on the bulkhead which allows a straighter drive cable run. The straighter run reduces
load on the cable allowing a stiffer cable to be used. The stiffer cable and the incorporation of a reduced friction
material reduces torsion wind-up of the cable and results in smoother wiper operation and a reduction of blade
over travel.
New, larger wheel boxes are fitted in an inverted position from the previous installation. The bulkhead mounting
holes are larger with flats for positive location of the wheel box spindle. The wheel boxes now feature a 40 tooth
gear ratio in lieu of a 32 tooth gear. This reduces backlash and load and further reduces blade over travel. The
wheel box casings are secured with locknuts.
The wheel box spindles now have a splined DIN taper fitting for the new wiper arms which are secured on the
spindle with an M8 nut. The taper improves arm retention.
A new grease is introduced which improves wiper operation at very low temperatures.
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WIPERS AND WASHERS
1
REPAIR PUMP - WINDSCREEN WASHER
Service repair no - 84.10.21
Remove
1.Remove headlamp.See ELECTRICAL,
Repair.
2.Position drain tin to collect any fluid spillage.
3.Disconnect multiplug from washer pump.
4.Disconnect hose from washer pump.
5.Release washer pump from reservoir and
discard sealing washer.
Refit
6.Fit new sealing washer and secure pump to
reservoir.
7.Connect hose and multiplug to washer pump.
8.Fit headlamp.See ELECTRICAL, Repair.
9.Fill reservoir with screen cleaning fluid.JET - REAR SCREEN WASHER
Service repair no - 84.30.09
Remove
1.Release and remove both rear side window
finishers.
2.Remove 8 screws securing both rear grab
handles.
3.Remove both rear grab handles.
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