Mercedes W205 Diesel Engine Fuel Tank Complete Tank Reservoir A2054705401

Mercedes W205 Diesel Engine Fuel Tank Complete Tank Reservoir is an original fuel system component designed for Mercedes vehicles with diesel engines. It ensures safe storage of diesel fuel and stable operation with the fuel system, which translates into predictable engine performance. This is a solution for users looking for a proven, factory-made component instead of replacements of unknown origin.

Specifications and technical data

• SKU: A2054708500-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054708500
• Substitutable numbers: A2054708500, A 205 470 85 00
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The Mercedes W205 Diesel Engine Fuel Tank Complete Tank Reservoir is a key element of the fuel system, responsible for storing fuel and delivering it stably to the pump and injectors. The tank's design is adapted to the characteristics of diesel fuel, which facilitates proper venting, vapor discharge, and maintaining the correct fuel level under various driving conditions. Thanks to its factory origin, compatibility with original mounts, lines, and fuel level sensors is maintained.

Benefits of using an original tank

Choosing an original tank from the Fuel tanks and filler pipes category allows you to maintain the factory geometry of the fuel system as well as the correct routing of lines and filler pipes. This is important both for operational safety and for proper interaction with the vehicle's electronics (e.g., fuel level readings, system diagnostics). A used, original component of this type is often more predictable than a cheap replacement because it retains the vehicle manufacturer's design parameters.

Using a dedicated tank for diesel units reduces the risk of leaks, venting problems, and disruptions in fuel pump operation. This is particularly important in modern diesel systems, where stable pressure and fuel cleanliness have a direct impact on the durability of injectors and engine smoothness.

Selection by part numbers and installation compatibility

The presented fuel tank is an OEM component that can be precisely matched to a specific version of the Mercedes W205 based on the part number or interchangeable numbers. This approach minimizes the risk of installation problems, improper fitment with the body, or interference with suspension and exhaust system components. In practice, this means shorter installation time and less interference with the vehicle's structure.

To better understand the role of the tank in the entire fuel system and the principles of selecting it by OEM numbers, it is worth checking out this specialist guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The article explains the relationships between the tank, pump, and injectors and provides tips on how to avoid common operational errors.

Operation, regeneration, and economic aspect

A used fuel tank for a Mercedes is a reasonable compromise between cost and maintaining the vehicle's factory parameters. In many cases, installing an original dismantled component is more beneficial than investing in a new replacement of uncertain material quality and workmanship. For owners of premium cars, this is important both in terms of durability and maintaining the vehicle's value.

If you want to learn more about the advantages of using original dismantled parts in cars of this brand, the following material will be helpful: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?. You will find practical tips there on how to consciously choose components and take care of your car without unnecessary service costs.

Mercedes fuel tanks and filler pipes – expansion and modernization

If you are planning a comprehensive repair or modernization of the fuel system area in your Mercedes and need other elements from the same group, such as additional tanks, lines, or filler pipes, check the available parts in the Mercedes fuel tanks and filler pipes category.