Car engine cooling system Opel Vectra A

Operation of the cooling system
The engine cooling system of Opel Vectra/Calibra cars has forced circulation of coolant and automatic regulation of its temperature. The coolant contains...

Replacing the coolant
The coolant should only be changed if the system has been drained as a result of repairs. The coolant is not changed during routine annual maintenance. If the...

Removal, checking and installation the thermostat
When the coolant temperature rises to a certain value, the thermostat opens the large circuit of the cooling system (through the radiator). If this does not...

Checking the cooling system
Leaks in the cooling system and the operation of the safety valve can be checked using a special pressure gauge. Insert the pressure gauge pipe into the...

Removal and installation the radiator
Removal Drain the coolant. To do this, disconnect the lower hose from the radiator and place a container underneath. The drained liquid can be reused....

Removal and installation the coolant pump
The following describes the removal and installation of the coolant pump for all engines except the 1.7L turbocharged diesel engine (procedures for this engine...

Removal and installation the fan motor
Removal Disconnect the ground wire from the battery. Disconnect the connector from the fan motor. Loosen the fan casing mounting bolts and remove it upwards...

Cooling liquid
The cooling system must be filled with a liquid that meets the requirements of the German DOT-4 standard or a similar one with a different designation (from...

Visual leak detection
Note: The presence of liquid droplets or traces of vapor at the coolant pump air bleed hole should not cause concern unless it leads to more significant fluid...

Checking the coolant level
If the cooling system is sealed, leaks are unlikely and the need to refill the system is rare. However, the coolant level should be checked before each long...

Checking the density of the coolant
Before the start of the cold season, it is necessary to check the density of the coolant. Warm up the engine. Carefully unscrew the expansion tank cap. Use a...

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