Mercedes W205 S205 AdBlue Fluid Tank Reservoir Pump F01C250151

Mercedes W205 S205 AdBlue Fluid Tank Reservoir Pump is a specialized component from the Fuel pumps and level sensors group, designed for the exhaust emission reduction system in C-Class W205/S205 generation models. It enables precise delivery of AdBlue solution to the exhaust system, supporting the efficient operation of the SCR system and maintaining exhaust emission standards at the required level. This is a solution for users who expect stable operation of the exhaust gas treatment system and want to avoid engine power issues and error messages on the dashboard.

Specifications and technical data

• SKU: A0994710475-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0994710475
• Substitutable numbers: F01C250151, F01C070012, A0994710475, A 099 471 04 75
• Part type: Fuel Pump
• Category: Fuel Pumps & Sending Units

Purpose and function in the AdBlue system

The AdBlue pump in the Mercedes W205/S205 is responsible for generating the appropriate pressure and dosing the urea solution into the SCR catalyst. A properly functioning component in this group ensures:

• stable pressure in the AdBlue circuit,
• precise dosing of the nitrogen oxide reducing agent,
• proper cooperation with the engine control electronics,
• reduced risk of the engine entering limp mode. For owners of Mercedes C-Class W205/S205 vehicles, replacing a faulty AdBlue pump with a functional component from the same group is crucial to maintain proper exhaust system operation and compliance with emission requirements.

Technical characteristics and compatibility

The presented pump belongs to the Fuel pumps and level sensors category, which means it is structurally adapted to work with operating fluids in automotive conditions. The component has been designed to work with the factory Mercedes control system, ensuring consistency of operating parameters with the engine control unit software. The product has a dedicated OEM part number and assigned replacement numbers, which facilitates selection via catalog or manufacturer-assigned number. Before purchasing, it is worth comparing the markings with vehicle data or using a VIN verification to confirm compatibility with a specific engine version and model year.

Condition, benefits of purchase, and service application

The AdBlue pump is offered in used condition, which provides a reasonable compromise between repair cost and functionality. For workshops and individual users, this means the possibility of restoring the SCR system's efficiency without the need to invest in a new component. This type of solution is particularly beneficial for:

• repairing fleet vehicles,
• servicing high-mileage cars,
• regenerating the exhaust gas treatment system after a pump failure or system seizure. A properly selected and functional AdBlue pump helps reduce errors related to agent dosing and supports the maintenance of stable engine operating parameters across the full load range.

Technical support and knowledge about pump group systems

To better understand the relationships between pumps, level sensors, and other elements of the supply and dosing path, it is worth consulting specialized materials. Practical information on diagnostics, selection by OEM numbers, and operating principles can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses, among other things, the role of pumps in modern supply systems.

Expanding repairs within the same group

If you are planning a comprehensive repair or modernization of the supply and operating fluid dosing area in your Mercedes and need other components from the same group, such as additional pumps, power modules, or level sensors, check the available parts in the Mercedes fuel pumps and level sensors category.