BMW 325xi AC cooling fan not working despite compressor operation on BMW 325xi

Some BMW 325xi owners report experiencing issues with the AC cooling fan not working, even when the compressor is operating. This problem may arise because the cooling fan is not directly triggered by the A/C system and only operates at higher speeds when the vehicle is warmed up. Owners have noted that the fan could stop functioning due to a disconnected or broken ground wire located on top of the compressor. In some instances, the fan may fail to run if the compressor is not cycling properly, despite appearing to be in good condition. Additionally, failure of components like the final stage fan resistor can lead to fan issues. Some owners also find that diagnosing the fan activation system may require specialized BMW software to identify specific error codes. Furthermore, potential oil leaks from a faulty valve cover gasket or coolant fluid leaks can complicate the diagnosis. Thorough troubleshooting of the cooling fan system, including checking electrical connections and inspecting related components, is essential for identifying the root cause and facilitating necessary repairs.