NHTSA Complaint #11482740 — 2016 MERCEDES-BENZ E350

The car was in for (Aug 2022) annual safety and emissions state (PA) inspection and normal maintenance. Last performed Aug 2021. I was told that the car failed safety inspection because the Rear SubFrame had rusted through. A hole was present not just surface rust. The car has 58,000 miles and garage kept. The car was just (June 2022) in for all 4 wheel brakes replaced along with 4 tires. There hasn’t been any recall on this and they quoted Repair price of$5,400 and expect me to pay $1,000 towards that replace and repair. My question is clearly this is an inferior part. I’ve since investigated that recalls have been issued for the C model but not on the E which I own. If my car was in for inspection 12 mos ago and in for brakes 3 mos ago how long did it take to rust through? We’re talking about a hole not surface rust. I can’t believe that the hole just appeared anyway but within the time last safety inspection occurred. Why do I maintain the service recommendations and have safety concern that the manufacture will not own up to and that me and my family are at risk of an accident. I’n fact the service manager admitted that he is seeing more and more of theses failures.