INFINITI M45 overheating issue with possible bad antifreeze sensor and suspected blown head gaskets on INFINITI M45

Some INFINITI M45 owners report experiencing overheating issues due to several factors, including potential coolant leaks, radiator fan problems, and failed thermostats. These owners have noted that a coolant leak can lead to insufficient engine cooling, resulting in overheating, and they recommend checking for visible leaks or pooling coolant under the vehicle. Additionally, some owners emphasize the importance of using the correct type of antifreeze as specified in the owner's manual, as air trapped in the coolant hoses can exacerbate overheating problems. The P1217 code, indicating higher than normal engine temperatures, has been reported by some owners, often linked to a malfunctioning cooling system or sensor issues. Regularly checking the coolant level and cleaning radiator fins from debris are also suggested practices. For those suspecting a bad antifreeze sensor or blown head gaskets, it is advised to seek a professional diagnosis to prevent further engine damage.