Mercedes W221 M272 M273 Petrol Fuel Pump Sender Delivery Unit A2214705994

Mercedes W221 M272 M273 Fuel Pump A2214705994 is an original part from the Fuel Pumps and Level Sensors group, designed for M272 and M273 gasoline engines in the W221 S-Class model. This used fuel pump offers a functional service solution for Mercedes vehicles requiring replacement of the factory gasoline supply system while maintaining manufacturer-specific compatibility.

Specifications and technical data

• SKU: A2214705994-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214705994
• Substitutable numbers: A2214705994, A 221 470 59 94
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Application and Compatibility with Mercedes W221

The presented fuel pump is designed to work with the M272 and M273 gasoline engines used in the Mercedes S-Class W221. This ensures seamless integration with the fuel supply system architecture, appropriate operating parameters for gasoline engines, and the ability to install it in place of the original component without modifying the fuel system.

By adhering to manufacturer standards, the pump is compatible with the factory electrical system, fuel lines, and control unit, ensuring stable engine supply parameters and minimizing the risk of starting issues, power loss, or uneven engine operation.

Technical and Functional Characteristics

This pump is responsible for delivering gasoline from the tank to the engine at the correct operating pressure. Its design is tailored to the requirements of gasoline engines, ensuring proper cooperation with the injection system and engine control unit. Using an original solution helps maintain the factory parameters of the fuel system, which is crucial for both performance and the longevity of other components.

A used part from this group is an excellent choice when the existing fuel pump is worn out, causing fuel pressure drops, or generating diagnostic errors. Opting for an original pump from the same product line reduces the risk of incompatibility often encountered with aftermarket alternatives of uncertain origin.

Benefits of Using an Original Mercedes Fuel Pump

Installing an original fuel pump in a Mercedes W221 with a gasoline engine offers several practical advantages:

• Maintaining factory gasoline engine supply parameters,
• Compatibility with the vehicle's control and diagnostic systems,
• Reduced risk of starting problems and issues under load,
• Easier part identification and selection thanks to OEM and cross-reference numbers,
• Direct replacement for the original part without requiring installation modifications.

For workshops and private owners, this translates to a more predictable repair process, shorter installation times, and a lower risk of needing further fuel system intervention shortly after the repair.

Selection by OEM Number and Fuel Type

When selecting a fuel pump for a Mercedes W221, it is crucial to pay attention to the OEM designation and cross-reference numbers, as well as the fuel type: gasoline. This allows for precise verification of the part's compatibility with the specific engine version and vehicle equipment. In practice, this prevents the installation of a component intended for a different engine variant or fuel type.

To better understand the principles of selecting and operating fuel system components, consult the guide on fuel system diagnostics and maintenance: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. This article covers topics such as selecting parts by OEM number, common signs of wear, and operational recommendations.

Condition, Service Application, and Technical Support

The offered fuel pump is a used part, providing a cost-effective solution while maintaining the original manufacturer's specifications. Such components are often preferred by workshops specializing in the Mercedes brand, especially for repairing vehicles used intensively or with higher mileage, where a balance between reasonable costs and technical compliance is important.

Should you have any doubts regarding part selection by OEM number or vehicle configuration, you may also find helpful materials on used electronic components and sensors, which discuss principles of matching components by manufacturer designations and hardware/software configurations: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?. Although this article primarily focuses on electronics, it addresses universal issues related to selecting used parts based on technical data.

If you are planning a comprehensive repair or upgrade of the fuel supply system in your Mercedes and require other parts from the same group, such as additional pumps, supply modules, or fuel level sensors, please check the available parts in the category Mercedes Fuel Pumps and Level Sensors.