There are 2 owner-reported brakes complaints for the 2023 Mercedes-Benz EQBin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2023 Mercedes-Benz EQB 300. The contact stated that his wife was parking inside the garage, and the brake pedal was depressed she felt the brake pedal was vibrating, and the vehicle then accelerated independently. The contact stated that after several times depressing the brake pedal, the vehicle was able to come to a stop. It was unknown if the warning lights illuminated. On a separate occasion, the contact was driving at 5 MPH coming to a stop, the brake pedal was released and felt abnormal vibration; the vehicle then accelerated independently. The vehicle jumped the curb and crashed into a tree trunk where it came to a stop. The driver’s and passenger’s side air bags did not deploy. The contact was unsure if there was a warning light illuminated on that occasion. A police report was not filed. There were no injuries sustained. The vehicle was towed to the dealer. The vehicle was not diagnosed or repaired. The insurance company was not contacted. The manufacturer was notified of the failure and advised the contact that a case manager would be reaching out. The contact stated that a chemical odor was emitting from the engine weeks before the incident. The failure mileage was 20,000.
We were driving along a 4 lane state road and the car suddenly applied the brakes hard and swerved to the right. A light blinked on the dash with a picture of the car and a red line on the right hand side. No cars were in the next lane over and there were no issues with the roadway. I was driving straight in the line and not near the left hand side of the Lane.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026