Assess condition of brake disks - AP42.10-P-4256EW
WARNING: This page is about a different car, the 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
For perforated or counterbored steel brake disks assess the crack length including the bore diameter. For crack length > 25 mm (.98") gaping cracks or score marks deeper than.5 mm (.002") or pitted corrosion or deeply contoured ridging at outer edge.
With CODE B07 (AMG ceramic high performance compound brake system) - replace damaged or soiled ceramic brake disks.