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
1Original wording in English
MERCEDES-BENZ, MERCEDES-MAYBACH
Complaint 48V battery (A66) part numbers A 000 982 78 24, A 000 982 57 30, A 000 982 88 31, A 000 982 50 32, A 000 982 87 32) may trigger a fault message ("48 V Service Required" with fault codes P0ADA91, P0ADE91, P0AA100, P0ADD00 or P0AA000) in the instrument cluster. This fault message may prevent the 48 V battery contactors f…
Check vehicle applicability
156A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mercedes-Benz | AMG C43 ↗ | 2024 |
| Mercedes-Benz | AMG C43 ↗ | 2023 |
| Mercedes-Benz | AMG C43 4MATIC ↗ | 2026 |
| Mercedes-Benz | AMG C43 4MATIC ↗ | 2025 |
| Mercedes-Benz | AMG C43 4MATIC ↗ | 2024 |
| Mercedes-Benz | AMG C43 4MATIC ↗ | 2023 |
| Mercedes-Benz | AMG C63 S E ↗ | 2024 |
| Mercedes-Benz | AMG C63 S E 4MATIC+ ↗ | 2025 |
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.