Jun 3, 2026BrakesDriver assistance
Component/system that malfunctioned: The braking and acceleration system, including the collision assistance (driver-assistance/automatic braking) feature. The vehicle is available for inspection upon request. How safety was put at risk: The car lags when braking and at times accelerates unexpectedly. On one occasion, the collision assistance system—which is designed to brake—instead caused the vehicle to accelerate. The most dangerous incident occurred when the car accelerated on its own into an intersection, nearly causing a collision. Reproduced/confirmed by a dealer or service center: The vehicle was taken to the Mercedes-Benz dealer twice regarding this issue. On both visits, the dealer reported that they found no problem. The fault has not been confirmed or reproduced by the dealer. Inspected by manufacturer, police, insurance or others: Inspected by the Mercedes-Benz dealer on two occasions (no fault found). UNKNOWN whether the manufacturer's engineering team, police, or insurance representatives have inspected the vehicle—to my knowledge, they have not. Warning lamps, messages, or symptoms prior to failure: UNKNOWN / none noticed. No warning lamps or dashboard messages were observed before or during these events. The symptoms (braking lag and unexpected acceleration) have been consistently noticed by all three drivers of the vehicle.
NHTSA ODI 11741951
Feb 25, 2026BrakesLane Departure
The vehicle stopped twice while being driven, with no apparent cause.
NHTSA ODI 11720558
Feb 15, 2026Electrical systemLightsBrakes
The vehicle experienced repeated electrical wiring harness damage in the lighting, tire and connector areas due to exposed and insufficiently protected wiring near socket terminations. On two separate service visits, authorized dealership technicians confirmed that rodents chewed through multiple exposed wires. The affected wiring involves critical electrical systems. The connectors lack adequate shielding, loom, or protective insulation at exposed termination points. The insulation ends before the connector, leaving conductors vulnerable to environmental exposure and rodent access. Warning indicators illuminated on the dashboard, and the vehicle required dealer repair on both occasions. The damaged wiring was inspected and confirmed by certified technicians and is available for inspection upon request. This condition presents a significant safety risk. If a rodent partially damages a wire connected to braking systems, steering systems, high-voltage components, sensors, or engine control systems, failure could occur while the vehicle is in motion. A sudden loss of power, interruption of propulsion, or malfunction of safety systems at highway speeds could increase the risk of a crash. Because this is an electric vehicle, sudden electrical interruption may result in complete loss of propulsion or charging capability. If such failure occurs in remote areas, at night, or in extreme weather conditions, occupants could be left stranded in potentially hazardous situations. This issue has occurred more than once, and no permanent preventive solution has been provided. The design appears to leave critical wiring insufficiently protected from foreseeable environmental and rodent exposure, creating an ongoing safety hazard. I request review of whether the wiring design provides adequate protection for safety-related electrical systems.
NHTSA ODI 11718164
Sep 23, 2025BrakesDriver assistance
The car made a sudden and very hard brake in the middle of the street at around 40 - 50 miles per hour, on a empty road.
NHTSA ODI 11689289
Jul 29, 2025Electrical systemBrakesCrash1 injury
I was driving from Fresno to Lake Tahoe stopped in Manteca to charge my car at the Tesla SC as I was reversing into the charge spot the car suddenly stopped a message appeared “speed severely restricted “ I tapped the gas pedal and no response within a millisecond the car accelerated in reverse at a high speed hitting the pole in front of the Supercharger resulting in damage to the backend of the eqe
NHTSA ODI 11677127