The contact owns a 2013 Mercedes-Benz C300. The contact stated that while driving approximately 55 mph when they attempted to apply the brake pedal but the vehicle failed to stop and emitted a rumbling noise. The contact stated the vehicle's rear end had swerved causing them to use excessive force in order to avoid a crash. The contact was able to maneuver the vehicle to the side of the road where they waited before continuing driving. There were no warning lights. The contact took the vehicle to the dealer who diagnosed that the rear subframe on the driver's side had severe rust and needed to be replaced. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 118,000.

- Parkton, MD, USA

The contact owns a 2013 Mercedes-Benz C300. The contact stated while driving approximately 30 MPH, the steering wheel started shaking. The contact then depressed the brake pedal causing the vehicle to drift. There were no warning lights illuminated. The contact took the vehicle to the dealer who diagnosed that the rear-subframe was severely rusted causing a control link to fracture. The contact was informed that the control link and subframe needed to be replaced on the passenger-??s side of the vehicle. The vehicle had not been repaired due to the parts being on backorder. The manufacturer was not made aware of the failure. The approximate failure mileage was 120,000.

- Elmwood Park, IL, USA

The contact owns a 2013 Mercedes-Benz C300. The contact stated while his wife was driving approximately 30 mph, she was depressing the brake pedal and the rear side of the vehicle shifted to the left independently, causing to impact with another vehicle. The contact stated no warning light was illuminated. The air bags did not deploy. The contact stated no one was injured nor sought medical attention. A police report was filed. The vehicle was drivable and the driver was able to continue driving to her destination. The contact took the vehicle to an independent mechanic and was informed the sub frame was corroded. The vehicle was not repaired. The contact called the local dealer and made them aware of the failure. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 50,000.

- Munhall, PA, USA

2013 Mercedes Benz C300. Consumer writes in regard to a hazardous defect in the rear subframe. The consumer stated the vehicle's ac compressor was faulty. The consumer was seeking reimbursement for the subframe and ac repairs. The manufacturer was notified, but did not offer any assistance.

- Cincinnati, OH, USA