Diagnosing a second Generation 2007 to 2013 MINI Cooper S with fault code P0118 BMW code 2F22 Engine Temperature Signal not plausible. I fixed the issue by replacing the thermostat housing which has a built in thermostat housing sensor, and the engine coolant temperature sensor. It is important to also replace all gaskets and keep track of what connectors go into what sensor on the temperature sensors (it is easy to mix up the wires), which will confuse your diagnostics. Also this is a great opportunity to check the quality of your coolant, as it should have a nice blue color. Another symptom I experienced when diagnosing fault code P0118 2F22, the engine fan would run randomly even with the vehicle off at very high speeds even when the engine was not hot.
Please share in the comment section any questions you have about your MINI Cooper diagnostics with fault code P0118 2F22 and I can share my experience.
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