2023 MERCEDES-BENZ EQB 300 4MATIC Complaints

I received an official recall notice from Mercedes-Benz regarding my EQB due to a defect involving the high-voltage battery system. According to the recall notice, the battery may experience an internal failure that could potentially result in a fire while the vehicle is either parked or being driven. Mercedes-Benz has also advised owners to limit charging and park the vehicle outside due to the severity of the safety risk. At this time, Mercedes-Benz has not provided a permanent repair remedy or battery replacement. Because I no longer feel safe driving or storing the vehicle, I have left it at the dealership and am currently using a loaner vehicle while attempting to reach a fair and reasonable resolution with Mercedes-Benz. Given the serious safety concerns associated with this recall and the lack of an available repair, I do not believe the current offer being presented by Mercedes-Benz adequately resolves the situation. During my first conversation with Mercedes, I was clearly told that I had two options: trade into another lease or have Mercedes repurchase the vehicle at no cost to me. At no point during that initial conversation was I told that repurchase was unlikely or subject to higher-level approval. $7,500 does not address the core issue, which is that I am still left in a lease for a vehicle I do not feel safe driving or storing. This is fundamentally a safety and usability issue, not simply a financial inconvenience. I am simply asking Mercedes to stand behind its product and provide a reasonable resolution for a leased vehicle that has been deemed subject to a serious fire-risk recall without a current repair remedy.

Compounded Electrical Failures In addition to the battery defect, this specific vehicle has exhibited recurring electrical malfunctions, including: Total failure of the backup cameras and parking sensors. Intermittent failure of the HVAC system (Air Conditioning), critical in the Florida climate. Erratic Autonomous Braking: The vehicle has repeatedly engaged emergency braking while reversing without cause, nearly resulting in multiple collisions. Diminished Utility and Breach of Lease Expectations The "interim" instructions provided by Mercedes-Benz have fundamentally altered the vehicle’s functionality from the terms established at the start of my lease: Charge Limitation: The "MUST NOT exceed 80%" mandate reduces the vehicle's range and utility, failing to meet the deliverable of a fully functional EV. Parking Restrictions: The requirement to park outside for fear of a garage fire is an unreasonable burden that violates the expected use of a luxury vehicle. Failure to Remedy within a Reasonable Time (49 U.S.C. § 30120) Under the National Traffic and Motor Vehicle Safety Act, specifically 49 U.S.C. § 30120(c)(2), a manufacturer’s failure to remedy a defect within 60 days of a vehicle being presented or a notice being issued constitutes prima facie evidence of a failure to remedy within a reasonable time. The notice for Recall 26V073 was issued in March 2026. As of today, May 11, 2026, more than 60 days have passed without an actionable remedy or a definitive timeline for repair. There have been ZERO warnings or indications of the above mentioned.

The contact owns a 2023 Mercedes-Benz EQB 300. The contact received a recall notification NHTSA Campaign Number: 26V073000 (Electrical System) however the parts were unavailable. The dealer was contacted, the contact was informed that the parts were unavailable. The manufacturer was contacted, and a case was filed. The contact was informed that the parts were not available. In addition, the contact was informed that the parts would not become available until 2027. The contact had not experienced any failure regarding the unrepaired recall repair.

Dear NHTSA Safety Team, I am submitting a formal safety-related complaint regarding my 2023 Mercedes-Benz EQB 250, which is currently under an active high-voltage battery recall. The recall imposes significant safety restrictions, including an 80% charging limit, a requirement to park the vehicle outside due to fire risk, and the inability to safely charge the vehicle at home. Additionally, I have been advised by my dealership that DC fast charging should not be used, further limiting the vehicle’s usability. Mercedes-Benz has informed me that the remedy requires a full high-voltage battery replacement, which may take many months (until at least December). In the meantime, the vehicle is not usable as a daily vehicle due to the combined safety and charging restrictions. I have attempted to work with Mercedes-Benz USA to obtain an appropriate remedy for this loss of use, but I have been told that only minimal options are available, and my request for executive-level review has been denied. I am requesting NHTSA’s assistance in reviewing this matter as a safety-related loss-of-use issue. The current restrictions materially affect my ability to safely operate and maintain the vehicle. Thank you for your attention to this matter. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

COMPONENT/SYSTEM: High-voltage battery system (traction battery). The vehicle is subject to a manufacturer recall for risk of internal short circuit and potential thermal event. The vehicle and battery are available for inspection upon request. SAFETY RISK: According to the manufacturer and dealer, the defect presents a risk of battery fire, including while the vehicle is parked and not in operation. As a result, the manufacturer has instructed safety precautions, including limiting charging to no more than 80% and parking the vehicle outdoors and away from structures. These precautions materially limit driving range and require the vehicle to be parked away from the residence, which increases risk exposure to occupants, visitors, and surrounding property. REPRODUCTION/CONFIRMATION: The defect has been confirmed by the manufacturer through a formal recall applicable to this vehicle. The dealer has acknowledged the recall and the associated safety instructions. INSPECTIONS: There has been no individualized inspection specific to this vehicle because the issue is a known, manufacturer-identified defect affecting recalled vehicles of this model. The condition and risk have been acknowledged by both the manufacturer and dealer. WARNINGS/SYMPTOMS: There were no prior warning lights, messages, or observable symptoms before receiving notice of the recall. The safety issue was not detectable to the driver absent the manufacturer’s notification. REPAIR STATUS/TIMING: The manufacturer has advised that replacement batteries are not expected to be available for several months (estimated beginning December 2026 or later). In the interim, the vehicle must continue to be operated under the above safety restrictions, while customer must still bear the known, significant risk of fire until then.

Pertaining to the recall of the 2023 Mercedes Benz EQB300. There is no resolution or remedy for this recall. Currently this is my only means of transportation and I do not feel safe at all driving it. I contacted Mercedes Benz for a buyback or loaner. No one senna to be concerned. The fire risk puts me and my children life in danger. I rent my house and have renter’s insurance but a vehicle fire will not be covered if damage occurs

The high-voltage battery cells in my vehicle, supplied by Farasis Energy, are prone to internal short circuits that can cause thermal runaway and vehicle fire. This defect poses a serious risk of fire while the vehicle is parked or in operation. Mercedes-Benz USA has acknowledged this defect through three separate recall campaigns (25V050, 25V894, and 26V073). The first two remedies — software updates — failed to prevent fires, including post-repair fires reported in Europe. Mercedes-Benz subsequently committed to full battery replacement as the only effective fix, but has not made repair scheduling available until approximately December 30, 2026. In the interim, Mercedes-Benz has instructed owners to: (1) park and charge exclusively outdoors, (2) limit charging to 80% of battery capacity. These extraordinary restrictions confirm that the vehicle remains a fire risk and is currently unfit for safe normal use.

I am writing to formally notify the National Highway Traffic Safety Administration (NHTSA) that Mercedes-Benz USA has failed to remedy a known safety defect within a reasonable amount of time, pursuant to 49 U.S.C. § 30120. This notification is submitted in relation to the recall issued under the National Traffic and Motor Vehicle Safety Act regarding the high-voltage battery cells in the 2023 EQB. The manufacturer has acknowledged that an internal short circuit within the battery cells may lead to a vehicle fire while driving or parked. Despite this, a timely and effective remedy has not been provided, leaving me to manage the following severe burdens: • Safety and Psychological Distress: Every time I operate this vehicle, I experience significant anxiety. My primary concern is the safety of my grandchildren; I am constantly haunted by the question of whether I could safely extricate them from the vehicle should it ignite while in motion. • Property and Liability Concerns: I am currently forced to park the vehicle away from other cars and structures to mitigate the risk of a conflagration. I am deeply concerned about my legal and financial obligations should the vehicle ignite and cause damage to third-party property or result in personal injury. • Diminished Performance: The vehicle currently exhibits a decreased mileage range, failing to meet the performance specifications promised at the time of lease. • Breach of Lease Terms: I am required to make full monthly lease payments as per my agreement. However, Mercedes-Benz is failing to uphold their portion of the contract by providing a vehicle that is safe, functional, and fit for its intended purpose. I request that the NHTSA investigate Mercedes-Benz’s delay in providing a definitive remedy and hold the manufacturer accountable for the loss of use and the inherent dangers posed by this defect. A car that "potentially could ignite into flames" at any moment is not a "remedied" vehicle under the law.

The contact owns a 2023 Mercedes-Benz EQB 300 4Matic. The contact received a recall notification, NHTSA Campaign Number: 26V073000 (Electrical System); however, the parts were unavailable. The dealer was contacted, and the contact was informed that parts would not be available until December 2026. In addition, the contact stated that the vehicle was a fire risk. The manufacturer was contacted, but no assistance was provided. The contact had not experienced a failure.

I was informed of this recall fire risk. And I contacted Mercedes dealership where I got the car. And they informed me that the battery is not available at this time. And to park the vehicle outside. I can’t do this because my charging port is located inside my garage. This is not a safe and the dealership won’t do anything about it.