What Causes Low Airflow in BMW's Air Conditioning?

[LaLeila]

Low airflow in BMW's air conditioning may be due to a long-unreplaced air filter or a malfunctioning blower motor. Below are detailed explanations of the causes: Air filter not replaced for a long time: A large amount of dust and impurities accumulated on the surface of the air filter increases its air resistance, naturally reducing the airflow. For example, if a car consistently reports poor cooling performance and noticeably low airflow, it is likely caused by excessive dust on the air filter. Replacing it with a new one can perfectly resolve the issue. Solution: Regularly replace the air filter. If driving frequently in dusty conditions, consider cleaning the surface dust of the filter. Blower motor malfunction: The blower motor may fail due to prolonged use or lack of maintenance, resulting in low rotation speed and consequently reduced overall airflow in the car's air conditioning system. Solution: If this is the cause, it may not need repair if the airflow is still acceptable. If unacceptable, replacing the blower motor is recommended.