Technical Service Bulletin B170124 — 2022 BMW I4

There is coolant leaking from under the car Low heater output Possible Check Control message “Drive, you can continue driving” (ID49) Possible fault codes stored in these BEV vehicles: 224163 – Electric auxiliary heater for the high-voltage battery unit: Undervoltage or internal communication fault 8049AA - Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 80124F – Electric auxiliary heater: Communication in electric auxiliary heater faulty 224F60 - Coolant level sensor, expansion tank: Coolant level low or short circuit to ground or line disconnection 224111 - Cooling system for power electronics: Coolant loss detected 224107 - Cooling system for high-voltage battery unit, component protection: Detection of coolant loss