* VVC temperatures are shown in brackets. (Cooling system)

ENGINE COMPARTMENT COOLING - Air cooling system.

In addition to the normal water cooling system an air cooling system is provided for the engine compartment. This is achieved by a fan mounted in the right hand side intake ducting, blowing cool air over the engine.

The temperature of the engine compartment is monitored by the ECM via signals from an ambient air temperature sensor. The sensor is mounted on the engine compartment header panel, directly above the inlet manifold.

When a temperature of 75°C (85°C)* is reached in the engine compartment the ECM switches the fan on via a relay.

The engine compartment fan is controlled by a timer and will operate for three minutes. However, if a temperature of 65°C (75°C)* is reached before the pre-set time has elapsed the fan will switch off automatically.

If the engine compartment temperature rises to 130°C, the ECM will illuminate the engine compartment warning light in the instrument panel. This will warn the driver of abnormal engine compartment temperature or that a fault exists in the system. When the temperature drops below 110°C the warning light will extinguish.

The fan will operate for up to eight minutes after the ignition has been switched off to attain the required engine compartment temperature.

* VVC temperatures are shown in brackets.

1. Engine compartment cooling fan
2. Ambient air temperature sensor
3. ECM