NHTSA Complaint #11505557 — 2013 MERCEDES-BENZ E350

Same problem that many others have reported. Took car dealer for a battery. Was told subframe is rusted and about $5000 to fix and that if not fixed could lead to car failure. 1) Why has Mercedes not informed the many thousand 2010-2014 C-Class and E-Class drivers affected by this dangerous defect. Many do not take their cars to the dealership for service anymore and could miss the problem until it is too late. 2) These cars have been recalled in Germany and elsewhere. Why not in the United States? 3) Is this situation up the the standards of NHTSA? If not why has a recall not been ordered? 4) Is there a difference in weighing customer safety against company bottom-line in the US compared to other countries? Thanks.