Mercedes-Benz E Class (W213) EQS (V297) S Class (W223） 2021-2026 BMS A7899008800 Lithium Battery Repair Solution

In order to distinguish more clearly the models using this specific kind of battery and BMS, notice this type of battery uses both slow and quick charge, and is usually mounted on E350e. A variant with same issues is found on EQS: With label: Common faults: P0AA100: The contact 'Positive terminal of contactor A in the high-voltage battery is jammed closed. (A7899820723 needs to be checked) P0AE2FA: The switch 'Precharging' in the hybrid/high-voltage battery module is jammed in the closed position. (A7899820300 needs to be checked) P2BC500: The contact "Positive terminal of the contactor in the on-board DC current charge-connection unit is jammed closed (A7899820723 needs to be checked) P2BCC00: Negative pole contactor of HV battery remained closed in the open position. (A7899820723 needs to be checked) P1C80FA: The high-voltage component lockout is active. (Fusi Lock active) P062FFE: Internal Control Module EEPROM fault If other faults are found on your BMS, or only part of the ones above, please contact our support for help to confirm whether this issue is requiring purchasing our solution or not. As this is a repair solution that can be used for multiple vehicles, we do not provide any refunds. Supported part numbers: A7899008800 - A7899008700 - A7899008600 - A7899006100 - A7893400027 - A7899012601 Brand Model Type Year Mercedes E Class (W213) 2021-2024 Mercedes EQS (V297) 2022-2026 Mercedes S Class (W223) 2021-2025