The water pump plays a key role in a vehicle's wet heating system, as it is the component responsible for circulating coolant between the engine and the radiator. The water pump ensures a constant flow of warm coolant, effectively heating the interior of the vehicle. For electric water pumps, which are independent of engine speed, precise control and energy efficiency are particularly important. Regular checks and maintenance of the water pump are essential to ensure system reliability and optimum comfort in the vehicle occupant.