See also:

Air Charge Temperature (ACT) sensor - removal and refitting
Removal 1 The air charge temperature sensor is screwed into the inlet manifold (see illustration). 14.1 Air charge temperature sensor - 1.6 EFI engine A Wiring plug B Sensor 2 Disconnect the b ...

Heater unit - overhaul
1 With the heater unit removed from the vehicle, remove the two securing screws and withdraw the heater matrix from the casing (see illustrations). 19.1a Remove the securing screws . . . 19.1 ...

Heater motor - removal and refitting
Removal 1 Disconnect the battery negative lead. 2 Where necessary, unclip the brake servo vacuum hose for improved access. 3 On models from 1987, unclip the windscreen washer hoses and wiring fro ...