BMW 320i xDrive loss of power when accelerating with rough idle and rattling sound, potential vacuum leak on BMW 320i xDrive

Some BMW 320i xDrive owners report experiencing symptoms such as a loss of power, rough idle, and a rattling sound, which may indicate a vacuum leak. These symptoms often include hesitation or stalling at low RPM, leading to a lean running condition that affects acceleration and overall engine performance. Additionally, the rattling noise may be associated with irregular airflow caused by the vacuum leak, potentially impacting the throttle body area. It is crucial for owners to diagnose and repair the vacuum leak promptly to restore optimal engine function and prevent further complications that could negatively affect the driving experience.