Based on the press release, I'm assuming this does not affect the M3. I'm surprised, though, that the M3's components are any different from a regular 3-series in this regard.
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Report Receipt Date: FEB 07, 2013
NHTSA Campaign Number: 13V044000
Component(s): ELECTRICAL SYSTEM
Potential Number of Units Affected: 504,545
Vehicle Make - Model - Model Year(s)
BMW 128i 2008-2012
BMW 135i 2008-2012
BMW 328i 2007-2011
BMW 335i 2007-2011
BMW Z4 2009-2011
Manufacturer: BMW of North America, LLC
SUMMARY
BMW is recalling certain model year 2008-2012 1-Series coupes and convertibles manufactured December 2007 through July 2011; and 2007-2011 3-Series coupes and convertibles manufactured March 2007 through July 2011; 2007-2011 3-Series sedans manufactured March 2007 through October 2011; 2007-2011 3-Series sports wagons manufactured March 2007 through June 2011; and 2009-2011 Z4 vehicles manufactured March 2009 through June 2011. The connector for the positive battery cable connector and the corresponding terminal on the fuse box may degrade over time. Over time, the high current flow and heat from electrical resistance may lead to a breakage of the connection, and a loss of electrical power to the vehicle.
CONSEQUENCE
If there is a loss of electrical power to the vehicle, the vehicle may unexpectedly stall, increasing the risk of a crash.
REMEDY
BMW will notify owners, and dealers will replace the positive battery cable connector and secure it with an improved method, free of charge. The recall is expected to begin in March 2013. Owners may call BMW at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
NOTES
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.