See also:

Heating and ventilation system - description
The heater is of the type which utilises waste heat from the engine coolant. The coolant is pumped through the matrix in the heater casing where air, force-fed by a duplex radial fan, disperses th ...

Engine Coolant Temperature (ECT) sensor - removal and refitting
Removal 1 The ECT sensor is screwed into the inlet manifold. 2 Disconnect the battery negative lead. 3 Partially drain the cooling system as described in Chapter 1. 4 Disconnect the sensor wirin ...

Routine maintenance and servicing
Ford Sierra maintenance schedule The maintenance intervals in this manual are provided with the assumption that you will be carrying out the work yourself. These are the minimum maintenance interv ...