The contact owns a 2014 BMW X1. The contact stated that while driving at various speeds, the vehicle hesitated with the radiator fan running at high speeds. The contact pulled over and allowed the engine to cool down before restarting the vehicle and continuing to drive. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic and DTC: 348A, 387F were retrieved. The contact stated that the thermostat was replaced; however, the failure persisted. The check engine warning light remained illuminated. The vehicle was diagnosed a second time and the contact was informed that the water pump and thermostat needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the VIN was not included. The manufacturer was notified of the failure. The approximate failure mileage was 114,000.