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If the check engine light illuminates in your MINI Cooper, it is advisable to pull over and exit the road promptly to prevent potential engine damage. Subsequently, use an OBD II scan tool to retrieve the code stored in the ECU. If you come across code 37DE, it indicates a malfunction in the crankcase ventilation heater control circuit. This component is responsible for warming and eliminating vapors from your engine and crankcase before releasing them into the air. Failure of this system signifies an emissions issue that requires repair.
The error code 37DE in a MINI Cooper signals a problem with the engine's PCV heater.
Here is a paraphrased and unique version of the text: "The letter 'O' repeated five times.