0491478 231070 Ring MW: Notes
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
(Measuring ring) For determining the shim between the outer bearing race and the countershaft circlip