The auxiliary water pump with part number 7L0 965 561L is primarily used in various models of Volkswagen, Audi, and Porsche, especially SUVs and luxury cars equipped with large engines (such as V6, V8, V10 diesel engines or certain gasoline engines).

Although the car water pump has a simple structure, it is the power source for the engine cooling system and is crucial to the engine’s health. Understanding its function, working principle, and common faults helps car owners to identify potential problems in a timely manner and perform proper maintenance, thus avoiding major issues and protecting the expensive engine.