Mercedes W205 Fuel Tank Return Pipe Line Hose Tube A2054709201

Mercedes W205 Fuel Return Hose is an original fuel system component designed for C-Class W205 models. As part of the Hoses, Pipes & Tubes category, it ensures stable fuel return to the tank, supporting the correct operation of the fuel system and reducing the risk of leaks. This is a practical solution for owners who want to maintain the factory engine performance characteristics of their Mercedes.

Specifications and technical data

• SKU: A2054709201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054709201
• Substitutable numbers: A2054709201, A 205 470 92 01
• Category: Hoses, Lines & Pipes

Function and Application in the Fuel System

The fuel return hose in the Mercedes W205 is responsible for safely directing excess fuel from the fuel rail or supply pump back to the tank. A correctly selected component:

• stabilizes fuel system pressure,
• reduces the load on the fuel pump,
• minimizes the risk of air ingress and power loss,
• supports smooth engine operation under various load conditions.

By maintaining its original geometry and internal diameter, the hose ensures flow parameters consistent with the manufacturer's specifications, which is particularly important for modern injection systems.

Construction and Fit for Mercedes W205

The offered component is designed specifically for the W205 platform, ensuring precise routing within the vehicle's engine bay and correct mounting points. The appropriately shaped tube and flexible hose sections:

• facilitate installation without the need for modifications,
• ensure collision-free routing relative to other components,
• reduce stress and vibrations transferred to the fuel system.

This precise fit is especially crucial in premium vehicles where the fuel system must integrate with sophisticated electronics and precise engine control unit calibration.

Benefits of Using an Original Hose

Using an original fuel return hose in a Mercedes offers tangible operational benefits:

• Compatibility with the Factory System – the hose is adapted to factory connectors, brackets, and routing within the W205 body.
• Stable Fuel System Operation – the correct cross-section and length of the hose help maintain appropriate pressure and flow.
• Operational Safety – reduces the risk of fuel leaks and undesirable pressure drops in the system.

This solution is particularly recommended for professional fuel system repairs where maintaining manufacturer-specified parameters is essential.

Component Condition and Installation Aspects

The hose is offered as a used part, allowing for economical repairs while maintaining original design specifications. Before installation, a standard visual inspection for any signs of operational wear is recommended, along with a leak test after installation in the vehicle. A correctly installed fuel return hose restores proper fuel circulation between the injection system and the tank.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other parts from the same category, such as flexible hose sections, rigid pipes, or additional return lines, check the available parts in the Mercedes Hoses, Pipes & Tubes category.

For a broader perspective on the importance of original components in premium cars and the impact of used parts on maintaining brand DNA, it is worth reading the article Audi and Pure Emotion – How Used Parts Help Maintain Brand DNA, which illustrates how the selection of appropriate components translates to everyday vehicle operation.