The contact owns a 2023 Mercedes-Benz EQB 250. The contact received notification of NHTSA Campaign Number: 25V050000 (ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was not made aware of the issue. The manufacturer was made aware of the issue. The contact stated while driving 65 MPH, the vehicle failed to respond as intended. There were no warning lights illuminated. The contact contacted the dealer; however, the vehicle was not taken to the dealer. The vehicle was not diagnosed. The dealer informed the contact to charge the battery and the vehicle started working properly. On a separate occasion, the vehicle stopped unintendedly. The manufacturer was made aware of the failure. The failure mileage was approximately 95,000. VIN tool confirms parts not available.