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
4Original wording in English
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P20F409
Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System: •P20F409: The Adblue consumption is too low. There is a component fault. •P202E84: The…
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P20F409
Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System: •P20F409: The Adblue consumption is too low. There is a component fault. •P202E84: The…
FREIGHTLINER, MERCEDES-BENZ
Reported code forms P20F409
Check engine light with possible Adblue warning with fault code P20F409 or P202E84 Complaint The check engine light is activated, accompanied by one or more of the following fault codes related to the Adblue System:…
JEEP
Reported code forms P20F4-00
Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the DCU with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further…
Check vehicle applicability
54A 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 1500 | 2020 |
| Freightliner | SPRINTER 1500 | 2019 |
| Freightliner | SPRINTER 2500 | 2024 |
| Freightliner | SPRINTER 2500 | 2023 |
| Freightliner | SPRINTER 2500 | 2022 |
| Freightliner | SPRINTER 2500 | 2021 |
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.