See also:

Diagram 3: 1980-86 Ancilliary circuits all models
Diagram 3: 1980-86 Ancilliary circuits all models ...

Heater unit - removal and refitting
Removal 1 Disconnect the battery negative lead. 2 If the coolant is still hot, release the pressure in the system by slowly unscrewing the expansion tank cap. Place a thick rag over the cap to pr ...

CFI unit (1.6 and 1.8 litre (R6A type) CVH) - removal and refitting
Caution: Refer to the precautions in Section 1 before proceeding. A new gasket must be used on refitting. Removal 1 Disconnect the battery negative lead. 2 Remove the air cleaner assembly. 3 De ...