BMW 430i Gran Coupe overheating warning with no temperature gauge indication and limp mode activation on BMW 430i Gran Coupe

Some BMW 430i Gran Coupe owners report experiencing overheating warnings without corresponding indications on the temperature gauge, which can lead to the activation of limp mode. These issues may stem from a coolant leak that disrupts the cooling system's functionality. Additionally, a malfunctioning radiator fan can cause engine temperatures to rise, triggering overheating warnings. A failed thermostat is also noted as a potential contributor to these overheating problems. The activation of limp mode can be a response to various factors, including engine overheating, low oil pressure, faulty sensors, or transmission issues. Owners are advised to take immediate action if overheating occurs while driving, such as pulling over safely and allowing the engine to cool down, to prevent potential engine damage. Promptly addressing these cooling system concerns is crucial to avoid further damage to the vehicle.