Why is the air volume of BMW 5 Series air conditioner small?

2 Answers
LaIker
07/24/25 9:40pm
The reasons for the small air volume of BMW 5 Series air conditioner are dirty air filter element, blocked condenser, and resistance caused by the fan blade touching the shell. The following are the reasons and solutions: 1. Dirty air filter element. Solution: Go to a repair shop to replace the air filter. Also, clean the air filter at the intake. 2. Blocked condenser. Solution: When the air direction is set to blow the front windshield, the air volume in the cabin will be small. Check for short circuits or power issues. 3. Resistance caused by the fan blade touching the shell. Solution: The fan blade is directly installed on the fan. If the fan is weak, the only solution is to replace the fan. However, if the fan blade is touching the shell, it can also cause reduced air volume. Adjusting the fan blade can solve this issue.
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JudahLee
08/10/25 2:44pm
As a long-time BMW 5 Series owner with several years of driving experience, I've encountered the issue of weak air conditioning airflow multiple times. The most common cause is a clogged cabin air filter filled with dust and debris, which blocks airflow and reduces ventilation output. Another frequent issue is the aging or failure of the blower motor - over time it loses its ability to spin at full speed. There might also be leaves or foreign objects stuck in the ductwork system affecting airflow. Settings-wise, it could be improperly adjusted recirculation mode or faulty temperature control. I remember one summer when my car's airflow was so weak it became unbearably stuffy - I fixed it by removing and cleaning the filter myself, but more complex issues like motor problems require professional service. Regular maintenance is crucial; replacing the filter annually can prevent this issue. Otherwise, driving in hot weather becomes a heatstroke risk - always prioritize safety and don't delay repairs.
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