2024 Mercedes-Benz EQB 300 4MATIC

6 complaints on file, page 1 of 1.

1. Filed Jun 15, 2026Failure Jun 6, 2026Ellicott city, MDElectrical system, Engine, Warnings

   I am submitting this complaint regarding a serious safety issue involving my vehicle. For an extended period of time, this vehicle has experienced recurring starting failures. On multiple occasions, the vehicle would not start, requiring service visits to the dealership. Despite repeated repair attempts, the dealership was unable to identify the root cause of the problem and typically performed only software updates. I was repeatedly informed that no specific defect could be found.Recently, the issue escalated into a much more dangerous event. While driving, the engine suddenly shut down without warning. The loss of engine power occurred during normal vehicle operation and created a significant safety hazard. This unexpected engine shutdown could have resulted in a collision, serious injury, or loss of vehicle control, particularly if it had occurred in heavy traffic or at highway speeds.What is especially concerning is that this incident appears to be related to the same unresolved condition that has resulted in multiple prior service visits. The vehicle has a documented history of similar symptoms, yet the underlying cause has never been identified or permanently corrected.Based on the repeated failures, unsuccessful repair attempts, and the recent engine shutdown while driving, I am concerned that this vehicle may have a safety-related defect affecting its reliability and safe operation. I am submitting this complaint so that the issue can be investigated and evaluated for potential broader safety implications.The vehicle continues to cause concern whenever it is driven because there is no assurance that the engine will not shut down again unexpectedly.

   NHTSA complaint 11744337
2. Filed Mar 25, 2026Failure Mar 25, 2026Coral Gables, FLFuel/propulsion system

   My vehicle is not included in the current high voltage battery recall under NHTSA recall 26V073, as it has a manufacture date of 08/2024 per door jamb sticker, however, page 5 of the NHTSA report explicitly states “A change in the production procedure of our supplier ensures that this issue can no longer occur on vehicles produced from July 31, 2024 onwards.” This leaves car production between May and July 31 (and likely beyond!) unaccounted for in the recall. My car was built in August 2024, likely with a battery manufactured prior to July 31, 2024 with the defect. I believe my car should be included in the recall/affected vehicles given its production date and the date of production remedy. I accessed the recall report here: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11727121
3. Filed Mar 15, 2026Failure Feb 25, 2026Playa Vista, CAEngine

   My vehicle is a 2024 Mercedes-Benz EQB 300. Despite the nationwide recall (NHTSA 26V073000) for high-voltage battery fire risk, the manufacturer is providing conflicting and dangerous safety information. I was verbally instructed by dealership representatives to park my vehicle outdoors and limit charging to 80% to avoid a fire hazard. However, when I requested written confirmation of these safety restrictions from MBUSA Corporate Retention (Case Manager: [XXX] ), my request was ignored The manufacturer refuses to put in writing that my vehicle is safe to park in my attached garage or charge to 100%, effectively leaving me with a fire hazard in my home while refusing to acknowledge the defect for my specific VIN. This is a critical failure of the recall management process. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11724420
4. Filed Feb 17, 2026Failure Feb 17, 2026Kirkland, WAUnknown or other

   Although I have not experienced safety issues myself, this exact model+year combination has been recalled more than once: 2024 Mercedes EQB 300 4matic, and when I searched by my VIN it shows recall. I’m very concerned if my car is mistakenly not included - what if it has battery issue/fire risk but I am not aware? This poses huge safety risk on day to day driving. I request an investigation on this particular VIN and reasons of why it is not in the recall list despite all infos match.

   NHTSA complaint 11718584
5. Filed Nov 17, 2025Failure Nov 1, 2025Frisco, TXElectrical system, Service brakes, Vehicle speed controlCrash

   On [XXX] at [XXX], while I was slowly moving my car into a parking spot, the vehicle suddenly stopped for a brief moment and then, within a second, unexpectedly accelerated forward without any input from me. The car jumped onto the pathway and collided with the glass door of the property located at [XXX] ". I attempted to control the car using the brakes immediately, but the vehicle was not responding and remained out of control. There were no alert sounds or warnings before or during the incident. The vehicle finally stopped only after hitting the glass door. I strongly believe this was caused by a software or system bug, as the sudden acceleration occurred without my intervention. Please investigate this issue thoroughly, as it raises serious safety concerns. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11699909
6. Filed Feb 9, 2025Failure Oct 31, 2024Bloomfield, NJElectrical system, Unknown or other

   For two months my EQB has been signaling high voltage when I charge it also now I’m having a problem connecting the plug to charge my car it shows red light has faulty it’s at the shop for a week now and I haven’t gotten updates about my car the cameras as well are turning black not working.

   NHTSA complaint 11641571