Specifically, one recall involves 670,000 2006-2011 model years 323i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi and M3. Also covered are the 2007-2011 328i xDrive, 335i xDrive and 335is, and the 2009-2011 335d that have a risk of fire that results from air conditioning systems that may overheat.
BMW reportedly told the NHTSA about the heating and air conditioning issues following its first report of an incident in 2008 involving heat- related damage to a 2006 3-Series sedan. However, BMW did not determine a root cause, but did continue to monitor incident reports.
BMW made a quality improvement to the blower-regulator wiring harness in 2011. While there were no reports of injuries between 2007 and 2014, in 2015, BMW was made aware of three incidents in which there were allegations of injuries. In early September, BMW learned of another incident involving a 2011 BMW 3 Series vehicle.
The second recall involves 740,000 US vehicles with a valve heater that could rust and result in fire. The recall includes some 328i, 328xi, 328i xDrive, 525i, 525xi, 528i, 528xi, 530i, 530xi, X3 3.0si, X3 xDrive30i, X5 xDrive30i, Z4 3.0i, Z4 3.0si and Z4 sDrive30i vehicles from 2007-2011. Also included is the 2008-2011 128i. All have 6-Cylinder engines.
Regarding the second recall, BMW apparently received its first report in 2009, involving an incident in a 2007 X5 with heat-related damage to the engine compartment, the company told NHTSA. It received other reports and continued to review the issue and inspect returned parts, but had no reports of injuries or crashes related to the issue, according to Reuters.com
BMW spokesman Michael Rebstock said the recalls overlap and cover about 1 million vehicles, nearly all in the United States and about 15,000 in Canada. He said the recalls may be expanded, Reuters reports.