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What are the reasons for abnormal noise when the BMW 5 Series air conditioner is turned on?

1 Answers

SanDaisy

07/29/25 5:05pm

BMW 5 Series air conditioner makes abnormal noise due to damaged car air conditioner compressor, blocked air conditioner vents, worn fan blades, or engine noise. Reasons for abnormal noise when the BMW 5 Series air conditioner is turned on: Damaged car air conditioner compressor. There are many reasons for car air conditioner compressor failure, including lack of lubrication, worn shaft, inability to compress air normally, or air leakage. When the air conditioner compressor has problems, the car's air conditioning system will produce noise or fail to cool. In this case, it is necessary to go to a repair shop or 4S store for professional inspection. Blocked air conditioner vents. The solution to abnormal noise caused by blocked air conditioner vents is very simple. Just clean the air conditioner vents immediately. It should be noted that the car air conditioner filter must also be cleaned and replaced regularly. Generally, the car air conditioner filter should be cleaned every 5,000 kilometers. Worn fan blades. If the fan blades are worn, the fan bearings lose lubrication, or the fan blades are stuck by foreign objects, the car air conditioner will make a rattling noise. In this case, the fan blades need to be removed for careful inspection. Engine noise. If the engine belt is loose or makes noise for other reasons, it may be mistaken for air conditioner noise. In this case, the engine needs to be carefully inspected to find the cause and then repaired.

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