Mercedes W204 C207 A207 Diesel Complete Fuel Tank 66L A2044703802

Mercedes W204 C207 A207 Diesel Complete Fuel Tank 66L is an original fuel system component designed for Mercedes vehicles with diesel engines. It ensures safe storage of diesel fuel and stable supply to the power unit, which translates into predictable fuel system operation and vehicle operating comfort.

Specifications and technical data

• SKU: A2044703802
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2034709201
• Substitutable numbers: A2044703802, A 204 470 38 02, A2044700694, A 204 470 06 94, A2044702294, A 204 470 22 94
• Weight: 150
• Fuel type: Diesel
• Offset (ET):
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The 66-liter fuel tank is a key component of the fuel system in Mercedes W204 class vehicles with a diesel engine. It is responsible for storing fuel, working with the pump, lines, and fuel system accessories, as well as maintaining proper operating conditions for the injectors and other components.

Thanks to its design tailored to the W204 body, the tank ensures proper fuel delivery at various fill levels, stability during acceleration, braking, and cornering, and reduces the risk of air entering the system.

Construction and fitment for Mercedes W204

The offered tank belongs to the Fuel tanks and filler pipes group, which means it has been designed to work with the factory fuel filler, ventilation, and mounting accessories in the Mercedes W204. The shape and arrangement of the connectors are adapted to the factory routing of the lines, which facilitates installation and reduces the need for modifications.

The item has an assigned OEM part number and interchangeable numbers, which facilitates precise identification and selection according to the catalog or VIN number. This allows for verifying compatibility with a specific body and engine version, minimizing the risk of purchasing an incompatible component.

Technical parameters and operation

The tank is adapted to work with diesel fuel (fuel type: Diesel), which is important for the material's resistance to the chemical properties of the fuel and additives. The weight and geometry of the tank specified in the documentation affect the vehicle's weight distribution and the method of mounting to the body, which is why it is important to use the correct mounting points and original design solutions.

A properly selected fuel tank reduces the risk of leaks, ventilation problems, and fuel pump malfunctions. This has a direct impact on the durability of the entire fuel system, engine smoothness, and vehicle safety.

Condition, service application, and part selection

The product comes from dismantling and is intended for service applications as a replacement for the factory-installed tank in the Mercedes W204. It is suitable both for standard replacement of a damaged element and for post-accident repairs where it is necessary to restore the full functionality of the fuel system.

Before installation, it is recommended to check the tightness, condition of the connectors, mounts, and the internal cleanliness of the tank, as well as verify compatibility by the OEM part number or interchangeable numbers. This approach helps avoid fitment issues and ensures proper cooperation with the existing fuel installation.

Technical support and additional information

To better understand the role of the fuel tank in the entire fuel system and to properly plan diagnostics and operation, it is worth reading the guide material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The article discusses, among other things, selecting parts by OEM numbers, typical symptoms of failures, and service recommendations.

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