The Problem: BMW has announced that certain emissions components on 2009-2011 3 Series, X5, and X6 diesel models including the SCR catalyst, DEF mixer, and the EGR valve may overstate vehicle mileage. This may cause emissions standards to be exceeded and illuminate the check engine light. This in turn could cause affected models to fail U.S. emissions tests.
The Fix: Beginning May 9 BMW will begin recalling affected models. The fix involves the inspection and replacement of certain emissions components, and a re-flash of the vehicle’s ECU.
Number of Vehicles Potentially Affected: According to Automotive News, 24,340 diesel BMWs are affected by the recall, including 2740 2011 and 2012 X5 and X6s, and 21,600 3 Series cars.
Thanks to: Motor Trend