Mercedes W205 Fuel Tank Petrol Complete Tank Reservoir A2054705401

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W205 Fuel Tank Petrol Complete Tank Reservoir is a factory-original fuel system component designed for Mercedes vehicles with a petrol engine. It ensures safe fuel storage, stable power supply to the engine, and proper integration with fuel system accessories. This is the ideal solution for users looking for a verified, complete fuel tank structurally matched to the W205 platform.

Specifications and technical data

• SKU: A2054705401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054705401
• Substitutable numbers: A2054705401, A 205 470 54 01, A2054704900, A 205 470 49 00
• Weight: 150
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The fuel tank in the W205 model is responsible for storing petrol, maintaining the correct operating pressure in the system, and working in conjunction with the pump, lines, and fuel level sensors. The design, tailored to the Mercedes W205 body, allows for proper routing of lines, correct mounting, and the maintenance of required safety zones under potential operational loads.

This element is part of the Fuel tanks and filler pipes group, meaning it works with the filler neck, ventilation system, and mounting hardware to form a cohesive and leak-proof petrol supply system.

Construction, material, and performance parameters

The complete fuel tank for the Mercedes W205 has been designed for use with petrol, utilizing materials specifically selected for their resistance to the chemical components contained in the fuel. The applied construction minimizes the risk of leaks, and the internal shape of the tank promotes stable fuel intake at various fill levels.

The specific weight of the component translates into stable mounting to the chassis and proper weight distribution in the rear of the vehicle. As a result, the tank maintains appropriate rigidity and does not transfer excessive vibrations to the body, which is important for both driving comfort and the durability of the entire fuel system.

Selection by numbers and compatibility

The presented tank belongs to the original Mercedes parts line, which facilitates matching via OEM numbers and interchangeable numbers available in the technical specification. This identification method allows for verifying compatibility with a specific body and engine version within the W205 platform, reducing the risk of purchasing an incompatible part.

Because the product has assigned interchangeable numbers, it can be used as a replacement for several factory tank variants within the same vehicle generation, which is particularly useful for post-accident repairs or comprehensive fuel system restoration.

Condition, installation, and practical application

The offered fuel tank is a used part, which in practice represents a favorable compromise between cost and the preservation of factory geometry and mounting points. For workshops and individual users, this is a viable alternative to new components, especially for repairs where structural fitment to a specific Mercedes model is critical.

The complete nature of the tank facilitates installation – after properly verifying compatibility via the part number and vehicle configuration, the replacement can be carried out using standard service procedures. A correctly selected tank reduces the risk of issues with ventilation, leaks, or incorrect fuel level readings.

Technical support and additional information

To better understand the role of the fuel tank in the entire supply system and to properly plan diagnostics, regeneration, or replacement, it is worth consulting the advice in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. There, you will find practical tips regarding part selection by OEM number, operation, and typical signs of wear.

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

Additional information on the cost-effectiveness of using used parts compared to new ones and replacements is provided in the entry: Original, replacement, or used – which car parts are the most cost-effective?, which discusses cost differences, quality, and issues regarding matching by identification numbers.