BMW is about to initiate its largest recall ever due to two issues – both of which could result in fires. While both represent serious issues, we’ve been told the risk of them occurring is very low.

The first issue relates to the air conditioning in E90 3 Series. Here’s the full statement on this issue from NHTSA:

BMW of North America, LLC (BMW) is recalling certain 2006-2011 323i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi and M3, 2007-2011 328i xDrive, 335i xDrive and 335is and 2009-2011 335d vehicles. The wiring and electrical connectors for the system that controls air flow for the heating and air conditioning system may overheat.

One of the more concerning aspects of this issue is that the issue could theoretically cause fire risk even when the vehicle is unattended.

The second issue involves an electrical short that can cause a valve from the crankcase to melt.

Here’s the official statement from the NHTSA:

BMW of North America, LLC (BMW) is recalling certain 2008-2011 128i and 2007-2011 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. The heater for the positive crankcase ventilation (PCV) valve may short circuit.

The recall should formally begin in December 18th. If you have one of the cars affected you should be receiving notification from BMWNA in the coming days about next steps and scheduling your service visit.