Auto AC Conditioning Compressor For 64529154072 64529399061 Auto Parts for BMW X5 X6

Auto AC Conditioning Compressor For 64529154072 64529399061 Auto Parts for BMW X5 X6

Judgment of cooling effect and noise
Cooling efficiency: When the air conditioner is turned on and set to the maximum cooling mode, the outlet temperature should drop to 8-12℃ within 5-10 minutes (when the ambient temperature is 30-35℃). If the cooling is slow or the outlet temperature exceeds 15℃, it may be due to insufficient compressor efficiency.
Abnormal noise: During normal operation, the compressor should emit a uniform "buzzing" sound. If there are sharp friction sounds, metal impact sounds or intermittent abnormal noises, it may be due to internal piston or bearing wear or clutch slippage.
Belt and appearance inspection
Drive belt: Check if the belt is loose (the deflection at the midpoint of the belt should be ≤15mm), cracked or broken. If it is too loose, it will cause insufficient speed of the compressor and affect the refrigeration effect.

Leakage and oil stains: Observe the compressor housing and pipeline interfaces. If there are oil stains remaining, there may be refrigerant leakage, and further testing of the sealing performance is required.