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Overcharged AC systems can cause this error, as excessive pressure prevents the compressor clutch from engaging.

For further assistance, it is recommended to scan for the specific 80436E code using a BMW-specific diagnostic tool to verify the refrigerant pressure sensor readings. 6BC2485B-3788-4F36-9C6F-237CCB8398EB.png

Replacing the clutch, serpentine belt, tensioner, and idler pulley may be necessary if the compressor itself has failed. Overcharged AC systems can cause this error, as