Engine cooling system Opel Astra F (petrol)

Technical specifications
System type - Sealed, with radiator, expansion tank installed separately, electric fan cooling, coolant pump operated by timing belt. Thermostat Type - Working...

Cooling systems — general information
The engine cooling system includes a pump, from which coolant is supplied under pressure to the radiator, an electric fan, a thermostat, an expansion tank and...

Coolant Hoses — Disconnecting and Replacing
Note: See the warning at the beginning of this chapter before proceeding. If the inspection reveals that the hoses need to be replaced, replace them. Drain the...

Radiator — removal, inspection and installation
Note: See the caution at the beginning of this chapter. A minor leak from the radiator can be repaired without removing the radiator by using "Holts Radweld"....

Expansion tank — removal and installation
Removal If necessary, disconnect the negative battery terminal and the coolant level sensor terminal on the expansion tank cap. Unscrew the two fastening nuts...

Thermostat — Removal, Checking and Installation
Removal Engines 1.4 and 1.6 l Partially drain the cooling system. Remove the rear timing belt cover. Unscrew the two bolts securing the thermostat housing,...

Cooling system fan — checking, removal and installation
The cooling system fan is driven by an electric motor, which is supplied with current through the ignition switch and fuse 11 (it can be installed in the fuse...

Cooling system switches — checking, removing and installing
Thermostatic fan switch Checking, removing and installing The switch is checked as described in the previous section. The switch is located at the bottom right...

Coolant Temperature Gauge Sensor
Checking, removing and installing The coolant temperature gauge is mounted on the instrument panel and is powered by a voltage stabilizer located there (via...

Coolant level sensor
Checking, removing and installing On models equipped with a refrigerant level sensor, it is located in the expansion tank. To check the sensor on a cold...

Coolant pump — removal and installation
Engines 1.4 and 1.6 l Removal and installation Drain the cooling system. Remove the rear timing belt cover as shown in chapter 2 . Remove the three bolts...

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