What owners reported to NHTSA, by component. One complaint can name several components.
Sep 23, 2026Electrical system
Car had a burning smell when entered and so stopped the car and had it towed to the dealership on 9/20/26 (Mercedes Benz of Laguna Niguel). Dealer said that a "liquid beverage were spilled onto the rear passenger seat are, resulting in liquid intrusion and a short circuit at the rear SAM control unit. This caused multiple vehicle malfunctions and a burning odor." A spilt beverage, not even a lot of liquid, caused a potential electrical fire in the car. This is not ok and a potential safety concern. Technician said this can happen again if a drink is spilled in the car.
Jun 5, 2026Forward collision avoidance
On Multiple occasions, the vehicle has spun out of control as though it's reacting to something that is not present. On May 10, 2026, headed north on the highway the car again lost control first veering right and then left into the highway median where it collided, spun out and hit again. I had injuries and a mild concussion.
Dec 27, 2025Service brakes
While driving on a road with no other vehicles around, the car abruptly braked for no reason. The car was 5 days old. It is currently in the service department.
Oct 9, 2025Fuel/propulsion system
Unintentional eroneous acceleration 0-50 Car was parked totally shut off and parking brake red illuminated Car took off huge dangerous acceleration with driver sitting in car. Towards house over lilac tree driver made evasive manuevers and came to a stop Driver mirror hit Was waiting for granddaughter to come out of house Someone couldve been killed Mercedes scanning car black box WE WILL NEVER GET BACK IN THAT CAR P.S prior two eqs no problem made in germany This car alabama