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Why is the BMW 525 air conditioning noise loud?

1 Answers

DiLydia

07/29/25 11:13pm

BMW 525 air conditioning noise may be caused by a dirty filter, which increases the fan's power and leads to noise. Reason one: One is the metal friction sound emitted when the compressor electromagnetic clutch engages, and the other is the squeaking sound caused by excessive force on the air conditioning belt. Both of these situations occur when the air conditioning is turned on and the accelerator is pressed. Reason two: The squeaking sound caused by excessive force on the air conditioning belt. Both of these situations occur when the air conditioning is turned on and the accelerator is pressed. Reason three: The metal friction sound emitted when the compressor electromagnetic clutch engages. The fault is usually due to a lack of lubricating refrigerant oil inside the compressor. When there is a lack of refrigerant oil, the internal piston of the compressor does not receive sufficient lubrication, resulting in metal friction sounds under the high pressure of the refrigerant.

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