D52C44 is a manufacturer-format diagnostic trouble code indicating a fault in the active steering control electronics. In BMW diagnostics this class of codes is usually logged by the steering control module (Active Steering ECU) when it detects internal errors, power/ground/communication faults, or inconsistent sensor/actuator data that compromise safe operation.
Some owners report a "moaning" or "jauling" sound that syncs with engine RPMs, pointing back to the alternator or steering motor. bmw error-d52c44
Specifically, this code translates to:
Vehicles experiencing this error code might exhibit symptoms such as: bmw error-d52c44