Fuel Pump Mercedes W204 W212 M271 Sender Control Unit Module Petrol A2044700394

Mercedes W204 W212 M271 Fuel Pump A2044700394 is an original part from the fuel pumps and level sensors category, designed for gasoline engines in Mercedes C-Class W204 and E-Class W212 models with the M271 unit. The used OEM fuel pump ensures proper supply to the injection system, stable pressure, and safe engine operation in daily use.

Specifications and technical data

• SKU: A2044700394
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044700394
• Substitutable numbers: A2044700394, A 204 470 03 94
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and Function of the Mercedes W204 W212 M271 Fuel Pump

The presented fuel pump has been specifically designed for gasoline systems in Mercedes vehicles with the M271 engine. It is responsible for:

• pumping fuel from the tank to the engine's supply system,
• maintaining the correct operating pressure throughout the system,
• cooperating with the fuel level sensor in the tank (within the fuel pumps and level sensors category),
• stable operation of the power unit across the full range of loads.

Thanks to its OEM construction, the pump is properly matched to the architecture of the Mercedes fuel system, which translates to reliable gasoline engine operation and reduced risk of starting problems or sputtering during driving.

Benefits of Using an Original Mercedes Fuel Pump

Using an original fuel pump in a Mercedes W204 or W212 with an M271 engine offers a number of practical benefits:

• High Installation Compatibility – the OEM part is designed to fit the factory fuel pump module, lines, and electrical connectors, facilitating installation.
• Appropriate operating characteristics – performance and pressure parameters are tailored to the requirements of the M271 unit.
• Stable gasoline supply – proper pump operation reduces the risk of lean mixture and power loss.
• Safe operation – correct fuel pressure supports the proper functioning of the injection system and catalytic converter.

This solution is particularly recommended for symptoms such as difficulty starting with a warm or cold engine, power loss under load, or unstable idle speed.

Condition, Verification, and Selection Based on Technical Data

The fuel pump comes from a Mercedes vehicle and is offered as a used part. Before being put up for sale, it undergoes checks for leaks, electrical operation, and overall technical condition, allowing for its reuse in a vehicle.

It is advisable to base the selection of the pump on:

• the exact engine designation (M271),
• the body generation (W204, W212),
• data from the manufacturer's catalog or OEM and reference numbers available in the technical specification.

This minimizes the risk of purchasing a part with performance characteristics different from those required for a specific gasoline engine variant.

Fuel System Operation and Technical Knowledge

To fully utilize the potential of this fuel pump, it is worth taking care of the entire supply system – the fuel filter, lines, and the condition of the tank. Detailed information on diagnostics, repair, and selection of fuel system components can be found in the article: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. This is a practical source of knowledge for those who want to service their car consciously and avoid common issues related to gasoline supply.

Other Mercedes Fuel Pumps and Level Sensors

If you are also looking for other Mercedes fuel pumps and level sensors for your car, check out our dedicated offer: Mercedes fuel pumps and level sensors. With filters by brand and category, you can easily compare available solutions and select the part best suited to your specific model and engine version.