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.
Manufacturer communications
2Original wording in English
MERCEDES-BENZ, MERCEDES-MAYBACH
Reported code forms U188D00
This is to notify you of the Service Campaign Launch to update the SCN coding for the drive unit DRVU Control Unit in 66,944 Model Year (MY) 2023 C-Class, GLC, S-Class, and SL (206, 223, 232, and 254 platform) vehicles.…
MERCEDES-BENZ, MERCEDES-MAYBACH
Reported code forms U188D00
Complaint Check engine light activated Fault codes stored in AMG Drive Unit N145/1 (DRVU3) B1F9713 U015400 U188D00 Cause Timing variance on wakeup of ethernet control units Remedy A solution is in development for listed…
Check vehicle applicability
15A 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 | 2023 |
| Mercedes-Benz | AMG C63 S | 2023 |
| Mercedes-Benz | AMG C63 S E | 2023 |
| Mercedes-Benz | AMG GLC43 | 2023 |
| Mercedes-Benz | AMG GLC63 S | 2023 |
| Mercedes-Benz | AMG SL43 | 2023 |
| Mercedes-Benz | AMG SL55 | 2023 |
| Mercedes-Benz | AMG SL63 | 2023 |
| Mercedes-Benz | C 300 | 2023 |
| Mercedes-Benz | GLC 300 | 2023 |
| Mercedes-Benz | S 500 | 2023 |
| Mercedes-Benz | S 580 | 2023 |
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.
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.