This is how cooling happens The water pump, when the engine is running, constantly drives coolant through the engine's numerous cooling channels and thus removes the heat generated by...
Checking the coolant level Constant control Despite the temperature and coolant level monitoring equipment, you should rely not only on the indicator, but also periodically check the...
Checking antifreeze To check the frost resistance of the coolant, you need a hydrometer. It measures the specific gravity of a liquid. Due to the different addition of...
Checking the cooling system for leaks Leaky areas in the cooling system are most easily detected when the engine is hot and, accordingly, operating pressure dominates in the cooling system....
Radiator — removal and installation The radiator is a reservoir made of synthetic material, which is equipped with fins on the right and left sides. From this manifold, coolant flows through...
Locking cap of the cooling system In a pressurized coolant circulation system, the sealing cap on the expansion tank plays an important role: The sealing surface of the screw cap is firmly...
The purpose of the thermostat Simply put, the thermostat is designed to determine whether it is necessary to cool the liquid in the radiator or not, i.e. it «decides» about whether the...
Help with thermostat malfunctions Thermostat signs Cause/Consequences A. The temperature rises slowly, operating temperature is reached later, insufficient heating effect Thermostat valve plate...
Water pump The coolant is circulated by a water pump in a closed circuit. With a four-cylinder engine, the water pump is located in the direction of travel ahead on the...
Water Pump V-Belt With a six-cylinder engine, the water pump is driven by a toothed belt - everything should be in order here. The situation is different with a four-cylinder...
Various fan models The radiator fan - if it is not sufficiently supplied with oncoming air flow - must itself create a constant air flow in the radiator fins. The air absorbs the...
Viscous fan Here you see a viscous fan (radiator fan) six-cylinder engine. Its nodes: 1 - fan blade; 2 - viscous clutch axis - with a six-cylinder engine with a large...
Electric Radiator Fan In the Audi A4, an electric fan is installed only with enhanced cooling (automatic transmission, towing device in the factory, air conditioning), it turns on...
Radiator fan malfunction If the thermostat fails or the V-belt breaks (only with four-cylinder engine), a non-working radiator fan can cause the coolant temperature to rise too high....
Help with malfunctions of the cooling system Malfunction Her reasons Your help A. The arrow of the temperature indicator is deflected to the limit to the right, the red indicator light flashes 1. Only...