BMW is recalling about 1.4 million vehicles, under two recalls, due to an increased risk of fires occurring under the hood.
BMW recommends that the affected vehicles should be parked outside until the recall is activated on Dec. 18 and after repairs have been made.
According to National Highway Traffic Safety Administration documents, the larger of the two recalls covers 740,561 2007-2011 BMW 328i, 525i, 528i, 530i, X3, X5, X4, and 2008-2011 128i models.
The second recall covers 672,775 2006-2011 BMW 323i, 325i, 325xi, 328i, 328xi, 330xi, 335i, 335xi, M3, and 2007-2011 328 xDrive, 335i, and 2009-2011 335d models.
Some of the vehicles mentioned above are included in both of the widespread recalls.
In the larger recall, BMW says the heater valve for the PCV could short circuit, which could lead to some melting and the increased risk of fire "even when the vehicle is not in use." The Associated Press reports that a spokesperson for the automaker said the heater is meant to prevent the valve from freezing in cold weather situations.
"The wiring and electrical connectors for the system that controls air flow for the heating and air conditioning system may overheat," the NHTSA's "smaller" recall information reads. "Wiring that overheats could cause the electrical connectors to melt, and increase the risk of a fire, even when the vehicle is unattended."