Automatic engaging of emergency break while driving or stationary together with signals of collision prevention assistant plus inoperative and two other errors (in pictures). Car was bought recently bought and delivered to me on January 1st, 2020. It has been taken back to dealer twice for same errors. It was replaced the battery twice as dealer indicated it had to do with auxiliary battery malfunctioning which was also another error showing in the panel.

- Miami, FL, USA

Cars brake system violently shakes the front of the car when brakes are applied. Car has 17K miles on it and is still under warranty. Dealer refuses to repair, says the rotors are warped because I drove the car in the rain, and the rain warped the rotos.

- Lutz, FL, USA

The contact rented a 2016 Mercedes-Benz Cla250. While driving 45 mph, the contact's vehicle crashed into the rear of another vehicle. The contact stated that the brake pedal was depressed and failed to operate as intended. The contact also stated that the autonomous braking system failed to operate as intended. The air bags failed to deploy. The vehicle was towed to an independent mechanic. There were no injuries. A police report was filed. The rental Agency was notified of the failure. The manufacturer was not notified. The VIN and failure mileage were unknown.

- Washington, DC, USA