Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
2Original wording in English
MERCEDES-BENZ
Complaint Instrument cluster warning lamp and/or warning message for brake system, EPB, ESP (yellow or red) and possibly 12V battery (red) Different combinations of the following DTCs present in the ESP: B23AA77, B23AB77, B23D177 and in part (C100BE0, C100BE1, B23AA1B, B23D152) Cause Due to a reduction in resistance at the HV vo…
MERCEDES-BENZ
Complaint Instrument cluster warning lamp and/or warning message for brake system, EPB, ESP (yellow or red) and possibly 12 V battery (red) Different combinations of the following DTCs present in the ESP: B23AA77, B23AB77, B23D177 and in part (C100BE0, C100BE1, B23AA1B, B23D152) Cause Due to a reduction in resistance at the HV v…
Check vehicle applicability
14A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mercedes-Benz | EQB 250 ↗ | 2024 |
| Mercedes-Benz | EQB 250 ↗ | 2023 |
| Mercedes-Benz | EQB 250 ↗ | 2022 |
| Mercedes-Benz | EQB 250+ ↗ | 2025 |
| Mercedes-Benz | EQB 250+ ↗ | 2024 |
| Mercedes-Benz | EQB 250+ ↗ | 2023 |
| Mercedes-Benz | EQB 300 4MATIC ↗ | 2025 |
| Mercedes-Benz | EQB 300 4MATIC ↗ | 2024 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.