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
3Original wording in English
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P300DE8 P300DFB
Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Boost Pressure Positioner: • P300A6D The boost pressure is too low. Charge Air Cooler. • P300974…
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P300DE8 P300DFB
Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Boost Pressure Positioner: • P300A6D The boost pressure is too low. Charge Air Cooler. • P300974…
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P300DE8 P300DFB
Check engine light with reduced power with fault codes P300A6D, P300974, P300DFB, or P300DE8 Complaint: The check engine light is activated, accompanied by one or more of the following fault codes related to the Boost…
Check vehicle applicability
40A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Freightliner | SPRINTER (VS30) | 2020 |
| Freightliner | SPRINTER (VS30) | 2019 |
| Freightliner | SPRINTER 1500 | 2024 |
| Freightliner | SPRINTER 1500 | 2023 |
| Freightliner | SPRINTER 1500 | 2022 |
| Freightliner | SPRINTER 1500 | 2021 |
| Freightliner | SPRINTER 2500 | 2024 |
| Freightliner | SPRINTER 2500 | 2023 |
| Freightliner | SPRINTER 2500 | 2022 |
| Freightliner | SPRINTER 2500 | 2021 |
| Freightliner | SPRINTER 3500 | 2024 |
| Freightliner | SPRINTER 3500 | 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.