TL* THE CONTACT OWNS A 2011 BMW X5. THE CONTACT HEARD AN ABNORMAL NOISE AND NOTICED SMOKE COMING THROUGH THE VENTS INSIDE THE VEHICLE. THE CONTACT ALSO SMELLED A STRONG BURNING ODOR. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 18V336000 (ENGINE AND ENGINE COOLING), BUT THE CONTACT WAS NOT NOTIFIED. WHILE DRIVING, THE IDLER PULLEY BOLT FRACTURED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBERS: 18V248000 (ENGINE AND ENGINE COOLING) AND 17V683000 (ENGINE AND ENGINE COOLING). THE VEHICLE WAS UNABLE TO BE DRIVEN DUE TO THE FAILURES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS NOT AVAILABLE.