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Powertrain

P2556

Code meaning and manufacturer information

OBD-II / DTC

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.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

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Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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Mercedes-Benz P25567B

'Coolant level' sensor has detected a fault, fluid level is too low

NHTSA 11016022 ↗

Manufacturer communications

4

Original wording in English

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FREIGHTLINER, MERCEDES-BENZ

Complaint Low Coolant warning with possible engine misfire caused by a leaking Charge Air Cooler (Intercooler), accompanied by one or more of the following possible fault codes related to the coolant system: P30040B: Component 'Temperature sensor downstream of charge air cooler' has an open circuit or short circuit to positive. …

FREIGHTLINER, MERCEDES-BENZ

Low Coolant Warning, Potential Misfire, and Absence of External Coolant Leaks Complaint Low Coolant warning with possible engine misfire caused by a leaking Charge Air Cooler (Intercooler), accompanied by one or more of the following possible fault codes related to the coolant system: P30040B: Component 'Temperature sensor downs…

MERCEDES-BENZ

Complaint A "Coolant level too low" warning message is shown in the instrument cluster. Fault code P25567B ('Coolant level' sensor has detected a fault, fluid level is too low.) is stored in the signal acquisition and actuation module (SAM) control unit N10. Cause The vehicle's electric drive motor transports air into the coolin…

MERCEDES-BENZ

Complaint "Coolant level too low" warning message is shown in the instrument cluster. Fault code P25567B (The 'Coolant level' sensor has a malfunction. The fluid level is too low) is stored in the signal acquisition and actuation module (SAM) control unit N10. Cause The electric drive motor of the vehicle conveys air into the co…

Check vehicle applicability

54

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

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MakeModelModel year
FreightlinerSPRINTER (VS30) ↗2020
FreightlinerSPRINTER (VS30) ↗2019
FreightlinerSPRINTER 1500 ↗2024
FreightlinerSPRINTER 1500 ↗2023
FreightlinerSPRINTER 1500 ↗2022
FreightlinerSPRINTER 1500 ↗2021
FreightlinerSPRINTER 2500 ↗2024
FreightlinerSPRINTER 2500 ↗2023

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.