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3•8 Cooling, heating and ventilation systems
17.14 Heater control panel retaining screws
(arrowed)
panel. Disconnect the wiring connectors from
the heated window switches and fuel
computer (where fitted) and remove the panel
from the car.
14 Undo the two retaining screws then
manoeuvre the control panel out of the facia
and disconnect the wiring connector (see
illustration).
15 Unclip the central fan switch from the
panel then, using a small flat-bladed
screwdriver, bend back the retaining tabs and
remove the cover from the panel base plate
(see illustration).
16 Cut the cable retaining clips then release
the cables from the toothed guides and
remove the base plate.
17 Refitting is a reversal of the removal
procedure securing the cables to the base
plate using new retaining clips.
18 Heater control cables -
removal and refitting
Models before April 1992
Front
1 Remove the heater controls as described in
the previous Section.
2 Remove the centre console as described in
Chapter 12. Also remove the console bracket
and the gear lever inner gaiter.
3 Unclip the under-dash trim on both sides.
Remove the glovebox lid.
4 Remove the radio (Chapter 13).
5 Remove the ABS and (when applicable) the
EEC IV modules (Chapters 10 and 13).
6 Remove the remaining lower trim on the
passenger side to expose the heater casing.
7 Remove the two securing screws and
release the cables from the heater.
8 When refitting, place the air distribution and
temperature control valve levers in their
uppermost positions, then connect the cables.
9 The remainder of refitting is a reversal of the
removal procedure.
Rear
10 Remove the centre console (Chapter 12).
11 Remove the front seat on the side
concerned. Also remove the rear seat cushion.
17.15 Exploded view of the heater control
panel
A Control cable retaining clips
B Cover
C Fan switch
D Base plate
12 Remove the front seat belt lower anchor bolt.
13 Remove the front scuff plate, which is
secured by three screws. Remove the front
screw from the rear scuff plate.
14 Roll back the front carpet from the scuff
plates to expose the heater cable. Release the
cable from its ties and disconnect it from the
control unit and the nozzle (see illustration).
15 Refit by reversing the removal operations.
Models from April 1992
16 Remove the facia undercovers, the right-
hand lower facia panel and the glovebox .
17 Undo the two retaining nuts, then release
the retaining clips and remove the trim panel
from the glovebox aperture.
18 Remove the heater control panel.
19 Slacken and remove the control cable
retaining screws then release the retaining
clips (one screw and one clip for each cable).
Detach the cables from the heater assembly
and withdraw them from the facia whilst noting
the correct routing (see illustration).
20 Refitting is a reverse of the removal
procedure noting the following points.
a) Ensure that the cables are correctly routed
prior to connecting them to the heater
housing.
b) Prior to refitting the glovebox aperture trim
panel, check that the panel controls
function correctly and that the cables
move the relevant operating lever
smoothly from the fully open to the fully
closed position without any trace of undue
friction.
19 Heater assembly - removal
and refitting
Models before April 1992
1 Disconnect the battery negative lead.
2 Depressurise the cooling system by
slackening the expansion tank cap. Take
precautions against scalding if the system is
hot.
18.14 Rear heater control cable at nozzle
3 Disconnect the two heater hoses from the
stubs on the bulkhead. Be prepared for some
coolant spillage: catch the coolant in a clean
container if it is fit for re-use. Plug the hoses,
or tie them up with their open ends raised.
4 Expel as much coolant as possible from the
heater matrix by blowing through it.
5 Remove the matrix connector plate and
gasket from the bulkhead.
6 Working inside the vehicle, remove the
centre console and other trim as described for
access to the heater control cables .
7 Remove the instrument cluster surround,
which is secured by four screws. Also pull out
the heater louvre panel.
8 Remove the facia panel top, which is
secured by five screws and four clips.
9 Detach the air trunking from the heater
casing. Release the trunking from the
bulkhead when necessary.
10 Remove the two nuts which secure the
heater unit. Pull the unit into the vehicle until
the pipe stubs are clear of the bulkhead, then
remove it sideways. Be prepared for coolant
spillage.
11 Check the condition of the foam gasket on
the bulkhead and renew it if necessary.
12 Refit by reversing the removal operations.
13 Top-up the cooling system on completion,
and check the level again after the engine has
been run.
Models from April 1992
14 Disconnect the battery negative terminal.
15 Drain the cooling system.
18.19 Heater control cable retaining screw
and clip (arrowed)
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