Operation, coolant, antifreeze, radiator, radiator hoses, cooling system sealing cap, thermostat, water pump, radiator fan, troubleshooting.
This is how cooling happens Coolant is constantly pumped through the engine. It is circulated by a water pump. Driven by a toothed belt, it increases the speed of fluid flow through a...
Checking the coolant level Constant control The coolant level in the expansion tank in the engine compartment should be checked regularly, even in vehicles with an automatic control...
Checking the concentration of antifreeze Maintenance work To check the frost resistance of the coolant, you need a hydrometer. It measures the specific gravity of the liquid. Due to the difference in...
Checking the cooling system for leaks Maintenance work The easiest way to identify leaks in the cooling system is when the engine is warm and, therefore, the cooling system is dominated by...
Radiator The radiator has so-called water boxes made of synthetic material. They are located on the left and right side of the radiator. From these collectors, coolant...
Locking cap of the cooling system In the high-pressure circuit, the sealing cap of the cooling system on the expansion tank plays an important role: The sealing surface of the screwed cap is...
Thermostat So far we have only talked about «cooling», but the washer fluid should not be too cold either. We have already mentioned that the correct operating...
Help with thermostat malfunctions Dismantling the thermostat with a 16V motor. Thermostat (1) suspended (arrow) in the outlet pipe (2). To unhook it, strongly press the thermostat spring plate,...
Water pump In order for the coolant to circulate in the cooling system, it is driven by a water pump. In Vectra models, the water pump is located on the front side and is...
Radiator fan The Vectra has an electrically driven radiator fan that only turns on when needed. This saves engine power and, as a result, gasoline. Therefore, on the...