If you own a BMW F15 and are experiencing air conditioner issues with the P110F error code, you’re not alone. Many BMW F15 owners have reported that their air conditioner stops working, and the dashboard displays a high temperature of 50+℃, leading to non-cooling operation. However, there is a solution to this problem, and we are here to guide you through it.
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Problem Description:
– The BMW F15 air conditioner is not working.
– The dashboard shows a temperature of 50+℃.
– Non-cooling operation is frequent.
Trouble Code:
– P110F: Ambient Air Temperature Sensor Faulty CAN Signal
Possible Causes:
– Faulty Ambient Air Temperature Sensor.
– Ambient Air Temperature Sensor harness is open or shorted.
– Ambient Air Temperature Sensor circuit has a poor electrical connection.
Diagnostics and Analysis:
– Used a multimeter to measure the related wire diagram, which worked fine.
– Disconnected the dashboard connector to measure resistance (3.5K), indicating normal operation.
– Both measurements (1 and 2) suggested that the dashboard was damaged and not working correctly.
Solution:
– Removed the dashboard and checked the PCB.
– Identified two places corroded by water.
– Resoldered the corroded places on the PCB.
Result:
The issue was solved after the corroded areas on the PCB were identified and resoldered.
This detailed guide can be helpful for technicians or individuals facing a similar air conditioning issue in a BMW F15. It emphasizes the importance of thorough diagnostics and the need for checking various components in the system to identify and address the root cause of the problem. Additionally, it highlights the significance of checking for water damage, which is a common issue in electronic components.