Heater controls - removal and refitting
Base and L models
1 Disconnect the battery earth lead.
2 From inside the vehicle, remove the dash lower trim panel on each side (left and right). The panels are secured by tags and clips.
3 Remove the retaining screws and withdraw the upper steering column shroud.
4 Withdraw the ashtray from the facia panel.
5 Pull free and remove the heater and ventilation control knobs.
Heating and ventilation controls - Base and L models
Left-hand drive shown
A Two-stage fan switch
B Temperature control
C Air distribution control
6 Unscrew and remove the two screws from the lower section of the instrument cluster bezel then withdraw the bezel upper section from the guide slots. Lift it clear of the control unit at the side.
7 Detach the switch lead connectors at the rear of the bezel.
8 At the heater casing remove the cable clamp screws and unclip the control cables.
Heater control cable connections (to heater casing) - Base and L models
A Left side connection
B Right side connection
C Outer cable clamp screw
D Plate nut
E Clip
9 Disconnect the control unit lights, then unscrew and remove the control unit, withdrawing complete with the Bowden cables.
Control unit and cable connections - Base and L models
10 Refitting is a reversal of the removal procedure. On completion adjust the controls.
Ghia and XR2 models
11 Disconnect the battery earth lead.
12 Working inside the vehicle, remove the dash lower trim panel on each side (left and right). The panels are secured with clips and tags.
13 Pull and withdraw the control knobs from the three rotary switches on the control unit.
Heating and ventilation controls Ghia and XR2 models
A Air distribution control
B Three-stage fan switch
C Temperature control
14 Unscrew and remove the four screws securing the control unit bezel and the control unit screws.
Control unit bezel retaining screws arrowed) - Ghia and XR2 models
Control unit retaining screws arrowed) - Ghia and XR2 models
Carefully withdraw the control unit from the crash padding.
15 Disconnect the control cables from the heater unit casing by loosening the clamp screws and unclipping the cables.
16 Partially withdraw the control unit (with cables) from under the crash pad so that the fan control switch lead can be detached, then fully remove the control unit.
17 This control unit type can be dismantled by bending back the four securing lugs using a suitable screwdriver and then removing the cover. To release the Bowden cables, unscrew their clamp screws and disengage the cables from the toothed band guides.
Control unit components - Ghia and XR2 models
A Cover
B Plate nut
C Toothed belt
D Pivot
E Baseplate
F Cable
The pivots and toothed band guides can then be removed from the baseplate of the control unit.
18 Refit in the reverse order to removal and adjust the controls.