Operation of the cooling system Opel Vectra/Calibra engine cooling system - with forced circulation of the coolant and automatic regulation of its temperature. The coolant contains...
Coolant replacement The coolant should only be changed if the system has been drained as a result of the repair. The coolant is not changed during scheduled annual maintenance. In...
Removal, check and installation of the thermostat When the coolant temperature rises to a certain value, the thermostat opens a large circuit of the cooling system (through the radiator). If this doesn't...
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 fitting into the...
Removal and installation of a radiator Removing Drain coolant. To do this, disconnect the lower hose from the radiator and substitute a container. The drained fluid can be reused. Disconnect the...
Removal and installation of the fan motor Removing Disconnect wire "masses" from the battery. Disconnect the connector from the fan motor. Loosen the screws securing the fan cover and pull it up...
Cooling liquid The cooling system must be filled with a liquid that complies with the requirements of the German DOT-4 standard or similar with another designation (from...
Visual leak detection Instruction. The presence of liquid droplets or traces of vapor at the coolant pump air outlet should not cause concern, if this does not lead to more...
Checking the coolant level If the cooling system is sealed, it is unlikely to leak and the system rarely needs to be replenished. However, the coolant level should be checked before...
Coolant Density Check 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. Pump...