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the problem is either a fault with the engine control unit or the instrument cluster - or a wiring/voltage issue. To verify, you would need to have a BMW scan tool connected to the car which can monitor all live data from all systems when the issues presents itself, to thus identify exactly where the problem is originating (ie cluster or engine control).Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.
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