The contact owns a 2014 Mercedes Benz S550. While driving approximately 10 mph, the vehicle downshifted and suddenly there was a hard shift when the accelerator pedal was depressed or when stopped at a traffic light. The contact also noticed that there was a loud noise near the rear of the vehicle. The contact also noticed that the tilt function feature on the right passenger mirror failed. When functioning properly, the right passenger mirror tilted downward and to the right when the vehicle was placed in reverse; therefore, the driver could see all objects to the rear passenger side of the vehicle and in the vehicle's blind spot. The mirror failed to return to the driver's setting after shifting the vehicle into drive after being in reverse. The failure recurred multiple times. The dealer stated that the rear suspension system and the rear brakes needed to be replaced. The dealer also stated that they were unable to locate a failure with the mirror. The rear suspension system and the rear brakes were replaced; however, the failure with the mirror persisted. The manufacturer was notified of the failures. The approximate failure mileage was 2,000. The VIN was unavailable.

- West Chester, PA, USA