NHTSA Complaint #10566760 — 2010 BMW X5

IGNITION FAILED TO RESTART ENGINE DUE TO BATTERY DRAIN. IN ONE INSTANCE, BATTERY DISCHARGED DESPITE CAR HAVING BEEN DRIVEN FOR >1HR AND THEN STOPPED FOR LESS THAN 15 MINUTES BEFORE FAILURE TO RESTART. TWO OTHER OCCASIONS WERE FAILURE TO START ON THE MORNING AFTER VEHICLE LAST DRIVEN. AVERAGE OUTSIDE AIR TEMPS 5-30 DEGREES F. VEHICLE HAD LESS THAN 25K MILES AT FIRST OCCURRENCE AND LESS THAN 34K AT TWO MOST RECENT OCCURRENCES. BATTERY THIS NEW SHOULD NOT HAVE ISSUES HOLDING A CHARGE. SUSPECT DIESEL FUEL FILTER HEATER FAILURE TO SHUT OFF, RESULTING IN BATTERY DRAIN (SEE NHTSA CAMPAIGN NUMBER: 13V339000). 3 OCCURRENCES TO DATE, ALL WERE DURING COLD TEMPERATURES WHEN FFH WOULD HAVE BEEN ACTIVATED. JAN 2013, JANUARY 3, 2014 AND FEBRUARY 17, 2014. ADDITIONAL ELECTRICAL SYSTEM FAILURES NOTED AS A RESULT OF BATTERY DRAIN ISSUES INCLUDE MULTIPLE WARNING INDICATORS (PASSENGER AIRBAG, DIESEL EXHAUST FLUID INDICATOR WARNING, BRAKE PAD WARNING, AMONG OTHERS). *TR