STEERING,ELECTRICAL SYSTEM,LANE DEPARTURE06/25/2026
The lane-keeping assist function (In-Lane control, part of the driver-assistance suite) does not turn off when commanded. The driver selects the control to disengage, and the system remains active and continues to apply steering input. This is a recurring condition and it is getting more frequent. A driver-assistance steering function that cannot be switched off removes driver authority over the steering at the moment the driver is trying to take control, which is a safety risk in normal driving and especially during evasive maneuvers, lane changes, and construction or debris avoidance. The condition was reported to the selling dealer in writing on June 17, 2026 as part of a recurring driver-assistance concern. During the subsequent B service visit the dealer inspected the radar sensors and applied software updates to the steering column module, steering wheel, electric power steering, and driver-assistance control units. The dealer could not duplicate the concern and did not perform a system calibration. The condition has continued after that service. The vehicle has approximately 17,428 miles. There has been no crash, no injury, and no fire. A separate recurring concern on the same vehicle: it reports its doors as unlocked when they are in fact locked, and issues a vehicle-unlocked notification while the vehicle is locked. This now occurs on a near-daily basis and was also reported to the dealer on June 17, 2026 with no diagnosis on record.
ELECTRICAL SYSTEM,ENGINE06/23/2026
Learning that my vehicle is subject to a battery-related recall has seriously undermined my trust. Battery defects in electric vehicles can present risks that include thermal events, loss of vehicle functionality, and other potentially dangerous situations. My vehicle has had warning signs, I received emails about the risks my vehicle can present directly from Mercedes. I have had my vehicle in the service department two times in two months for this same issue. My vehicle is overheating while charging.
ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE06/15/2026
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.
UNKNOWN OR OTHER06/14/2026
Electrical System/Climate Control/Energy Management DESCRIPTION OF PROBLEM: On XXX, I exited my 2024 Mercedes-Benz EQB 250+ at a parking lot in [XXX] to briefly enter a business. I left the vehicle running in Park and I took the key fob with me and left the climate control (AC) active. Three occupants remained inside the car: my wife, son, and dog. Without any warning, alert, or notification to the remaining occupants, the car automatically shut down its drivetrain and climate control system after approximately 5 to 10 minutes of idle time. The interior temperature in TX in summer conditions can reach dangerous levels within minutes of AC loss, creating a life-threatening situation for car occupants. The car provides no prominent warning to the driver at the time of exit that this automatic shutoff will occur. There is no accessible, clearly labeled setting to disable this behavior. The only known workaround — pressing a small fan icon on the lower display screen before opening the door after powering off — is non-intuitive, undisclosed in routine car operation, and limited to approximately 30 minutes. This design is in stark contrast to competing electric cars (e.g., Tesla) which offer an explicit, clearly labeled "Keep Climate On" or "Dog Mode" feature that maintains cabin temperature indefinitely when occupants are present. In high-heat states such as Texas, where temperatures routinely exceed 100°F, an unexpected and unannounced climate system shutdown poses a serious and foreseeable risk of heat stroke, injury, or death, particularly to children, elderly individuals, and animals who cannot self-rescue. I am requesting that NHTSA investigate this as a potential safety defect and evaluate whether Mercedes EQ cars equipped with this automatic idle shutoff behavior require a design change, software update, or recall to add adequate safeguards. No crash or injury occurred in this incident. This complaint is being filed to prevent future harm. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
FORWARD COLLISION AVOIDANCE06/05/2026
My auto assist emergency braking function has triggered 3 times over the last few months with no other cars or hazzards near me. There was not warning. Each time it caused sudden unexpected severe jerking. More importantly, had there been a car behind me, it would have run into me and caused an collision. I reported this to the dealer who was unable to replicate the problem so it returned my car without a solution. I have notified MBUSA.
ELECTRICAL SYSTEM06/02/2026
The contact owns a 2024 Mercedes Benz E. The contact stated that while the vehicle was parked, and started, the instrument panel and infotainment screen became blank. No warning indicators or audible assistance and other vehicle assistance were not able to display due to the failure. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 21,000.
POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM05/26/2026
On a recent drive, my 2024 Mercedes-Benz E350 VIN: [XXX] suffered a catastrophic safety hazard involving a complete loss of drive power and sudden engine shutdown while operating at highway speeds. I had to navigate across active highway lanes with no engine propulsion to reach safety. Simultaneously, the vehicle experienced a widespread failure of its master interior electrical grid. The driver's power seat became permanently frozen in a fully reclined position while driving, creating an immediate driver-ergonomic safety hazard. Multiple interior USB charging ports and the passenger-side power seat also lost power entirely. This combination of engine stalling and localized interior electronic failure strongly aligns with NHTSA Recall 24V-115, which involves faulty 80-Amp fuses in the main fuse box causing a loss of propulsion. The vehicle also currently displays an open, unresolved safety recall for its airbag systems. The manufacturer's dealership is attempting to charge multiple diagnostic fees to investigate these interconnected issues rather than processing them under an active safety campaign. I am filing this report to document a severe, active propulsion failure in the field that represents an immediate threat to life and highway safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
FUEL/PROPULSION SYSTEM03/25/2026
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)
ENGINE03/15/2026
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)
ELECTRICAL SYSTEMcrash02/23/2026
At the time of the incident, I was pulling into a parking space in a parking lot near a park. I was traveling at approximately 3-5 miles per hour, consistent with idle or walking speed during a routine parking maneuver. I was nearly stopped and aligned with the parking space when the vehicle suddenly and unexpectedly accelerated without driver input. This occurred from a near-idle speed in a parking lot, not during roadway driving. During the unintended acceleration, the vehicle traveled over multiple curbs on both sides. No audible warnings, no beeping, no proximity alerts, no forward-collision warnings, and no automatic emergency braking activated at any time, despite the vehicle crossing curbs and approaching fixed objects. No warning lights illuminated. The vehicle continued accelerating without driver input and struck and knocked down a fixed light pole. After the impact, the vehicle continued moving forward until I immediately slammed on the brake and brought it to a stop in the middle of the adjacent roadway. No orange cones or warning devices were present prior to the incident. Any cones visible in photos were placed after the collision by responders for safety and traffic control. The sudden acceleration and complete lack of safety-system response occurred during a low-speed parking maneuver where the vehicle should not have accelerated beyond idle speed.
UNKNOWN OR OTHER02/17/2026
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.
ELECTRICAL SYSTEMcrash01/04/2026
At the time of the incident, I was pulling into a parking space in a parking lot near a park. I was traveling at approximately 3–5 miles per hour, consistent with idle or walking speed during a routine parking maneuver. I was nearly stopped and aligned with the parking space when the vehicle suddenly and unexpectedly accelerated without driver input. This occurred from a near-idle speed in a parking lot, not during roadway driving. During the unintended acceleration, the vehicle traveled over multiple curbs on both sides. No audible warnings, no beeping, no proximity alerts, no forward-collision warnings, and no automatic emergency braking activated at any time, despite the vehicle crossing curbs and approaching fixed objects. No warning lights illuminated. The vehicle continued accelerating without driver input and struck and knocked down a fixed light pole. After the impact, the vehicle continued moving forward until I immediately slammed on the brake and brought it to a stop in the middle of the adjacent roadway. No orange cones or warning devices were present prior to the incident. Any cones visible in photos were placed after the collision by responders for safety and traffic control. The sudden acceleration and complete lack of safety-system response occurred during a low-speed parking maneuver where the vehicle should not have accelerated beyond idle speed
Showing 12 of 24 complaints.