Can a faulty AC compressor cause warm air in my BMW 2 Series?
Home >
Gari Forums >
BMW Forums >
BMW 2 Series Forums >
BMW 2 Series Air Conditioner Not Blowing Cold Air Forums
Can a faulty AC compressor cause warm air in my BMW 2 Series?
Sometimes, my BMW 2 Series air conditioner works fine, but then suddenly stops cooling and starts blowing warm air. After turning it off for a while and restarting, it sometimes works again. What could be causing this inconsistent cooling performance?
1 Answer
17 views |
Garitips asked on 19 Feb 2025 14:16:56 pm


Yes, the AC compressor is a crucial component, and if it fails, the AC will blow warm air. Here’s how to check if your BMW 2 Series compressor is faulty:
No Cold Air: If the compressor isnt compressing the refrigerant properly, the system won’t cool.
Unusual Noises: A failing compressor often makes grinding o r squealing noises when turned on.
Clutch Not Engaging: The compressor clutch engages when the AC is turned on. If its not engaging, the compressor won’t work.
Refrigerant Leaks: A compressor failure can sometimes be caused by a refrigerant leak, leading to low pressure in the system.
Solution:
Check the AC compressor by turning on the AC and looking at the pulley. If the clutch isn’t spinning, it may need servicing o r replacement. If you hear unusual noises, the compressor might be failing. A mechanic can confirm the issue by checking refrigerant levels and system pressure.
No Cold Air: If the compressor isnt compressing the refrigerant properly, the system won’t cool.
Unusual Noises: A failing compressor often makes grinding o r squealing noises when turned on.
Clutch Not Engaging: The compressor clutch engages when the AC is turned on. If its not engaging, the compressor won’t work.
Refrigerant Leaks: A compressor failure can sometimes be caused by a refrigerant leak, leading to low pressure in the system.
Solution:
Check the AC compressor by turning on the AC and looking at the pulley. If the clutch isn’t spinning, it may need servicing o r replacement. If you hear unusual noises, the compressor might be failing. A mechanic can confirm the issue by checking refrigerant levels and system pressure.