Why is the auxiliary cooling water pump 03L965561A important in heavy traffic or when idling?

In traffic jams or idling, the auxiliary cooling water pump 03L965561A is very important, mainly because it can effectively help the engine regulate the temperature in this case and ensure that the engine operates within a suitable operating range.
Increased heat dissipation requirements: In traffic jams or idling, the vehicle's driving speed is greatly restricted, which results in a significant reduction in the air flow driven by the vehicle as it moves forward. In heavy traffic or when idling, engine speeds are relatively low, reducing the efficiency of the fan and cooling system and reducing the ability of naturally flowing air to dissipate heat from the engine. Therefore, the heat inside the engine is difficult to effectively dissipate through the naturally flowing air, causing heat to accumulate inside the engine. At this time, the temperature of various parts of the engine may rise rapidly, especially those parts that are in direct contact with high-temperature gas, such as combustion chambers, pistons, valves, etc. These components work at high temperatures. Without effective cooling measures, the temperature will continue to rise, seriously affecting their normal operation and lifespan.
Avoid overheating: When the engine temperature is too high, it can cause a series of serious problems. High temperature will cause the viscosity of the lubricating oil to decrease, which will affect the lubrication effect, increase the friction between the internal parts of the engine, and intensify wear. Secondly, high temperature will cause thermal expansion of the materials of various engine components, changing the fitting gaps between them, leading to jamming and ablation between parts. In addition, high temperatures may trigger chemical reactions inside the engine, producing harmful compounds that can cause corrosion and damage to the engine. In order to avoid engine overheating, the auxiliary cooling water pump 03L965561A plays an important role. It drives the coolant to flow in the cooling water channel inside the engine, transferring heat from high-temperature components to the radiator, and then dissipates the heat to the atmosphere through the fan. This forced cooling method effectively takes away the heat inside the engine and prevents the engine from overheating.
Ensure the normal operation of the engine: Proper engine temperature is an important condition to ensure the normal operation of the engine. Excessively high temperatures will cause engine performance to decrease and even cause malfunction; while excessively low temperatures will cause the engine to fail to work properly. In traffic jams or when idling, the engine temperature easily rises due to poor heat dissipation conditions. At this time, the auxiliary cooling water pump 03L965561A maintains the normal operating temperature of the engine by continuously circulating the coolant, ensuring that the engine can operate stably and efficiently under various working conditions.
Additional cooling under specific working conditions: In some extreme conditions, such as high temperatures in summer, heavy vehicle loads, hill climbing, etc., the cooling requirements of the engine will further increase. At this time, the auxiliary cooling water pump 03L965561A can automatically adjust its working status according to the engine's heat dissipation needs, providing more powerful cooling capacity. When the engine temperature is too high, it can speed up the circulation speed of the coolant and increase the heat dissipation area of ​​the radiator, thereby reducing the engine temperature more effectively. This intelligent cooling method ensures that the engine can maintain stable performance under various extreme working conditions.
The importance of the auxiliary cooling water pump 03L965561A in traffic jams or idling is mainly reflected in its ability to effectively regulate the engine temperature, prevent the engine from overheating, and ensure that the engine can run stably and efficiently under various working conditions.