NHTSA recall 13V339000

What's wrong: Affects vehicles equipped with a diesel engine and manufactured from June 13, 2009, through November 9, 2009. The fuel filter heater, which is used for warming up the diesel fuel during vehicle operation at low outside temperatures, could experience an electrical overload condition and become permanently activated.

Why it matters: The fuel filter heater could remain activated even when the ignition is off and lead to a dead battery. The unit could also overheat, possibly resulting in a vehicle fire.

The fix: Bmw will notify owners, and dealers will replace the fuel filter heater, free of charge. The safety recall began on September 26, 2013.