Mercedes-Benz S-Class W221 Diesel Complete Fuel Tank 83L A2214708001

Mercedes-Benz S-Class W221 Diesel Complete Fuel Tank 83L is an original fuel system component designed for diesel engine versions. It ensures stable fuel storage, proper venting, and safe integration with fuel system accessories, which translates into smooth and predictable vehicle operation. By maintaining the factory geometry and a capacity of 83 liters, the tank allows you to retain the vehicle's original range and performance parameters.

Specifications and technical data

• SKU: A2214708001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214708001
• Substitutable numbers: A2214708001, A 221 470 80 01, A2044700438, A 204 470 04 38, A2214708294, A 221 470 82 94, A2044700238, A 204 470 02 38, BG
• Weight: 150
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented tank belongs to the Fuel tanks and filler pipes category and is structurally matched to the Mercedes W221 platform with a diesel engine. It is responsible for the safe storage of fuel, interaction with the pump module, level sensors, and supply and return lines, as well as maintaining proper pressure conditions within the system.

A properly selected fuel tank reduces the risk of air locks, starting problems, and fuel injector malfunctions. The 83-liter capacity is particularly beneficial in luxury class vehicles, where driving comfort over long distances without frequent stops for refueling is a priority.

Construction and technical parameters

The tank has been designed for use with diesel fuel, which means it has the appropriate material resistance to diesel fuel and additives. The design includes mounting points to the chassis, sockets for accessories, and a system of baffles to limit fuel sloshing during dynamic driving.

The component is characterized by a specific weight, which is important both from the point of view of installation and vehicle weight distribution. Using an original tank helps maintain factory passive safety parameters and compatibility with the existing fuel installation.

Compatibility, part numbers, and selection

The product has a dedicated OEM part number and a set of interchangeable numbers, which facilitates precise identification and selection via catalog or VIN. This allows for verifying the tank's compatibility with a specific equipment version and body year, minimizing the risk of installation issues.

For users and workshops, this means the ability to quickly verify whether a given tank will be suitable for a specific Mercedes W221 unit, without the need to modify the fuel system or mounting points. This, in turn, translates into more efficient service and reduced vehicle downtime.

Condition, installation, and service application

The offered tank is a used component, which allows for an economical repair of the fuel system while maintaining the manufacturer's original specifications. In practice, this is a beneficial solution in situations such as mechanical damage, corrosion, leaks, or the need for replacement after a collision.

Replacing the fuel tank in a Mercedes W221 requires the removal of protective elements and disconnecting fuel lines, which is why it is recommended to carry out the work in a specialized service center. Using a factory 83-liter tank simplifies installation, as all mounting points and connections are compatible with the original system.

Technical support and additional materials

To better understand the role of the fuel tank in the entire supply system, diagnostic methods, and the principles of selection by OEM or VIN number, it is worth using expert materials. A detailed discussion of issues related to injectors, pumps, and the fuel tank can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which contains practical tables and answers to frequently asked questions.

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, vent lines, or additional mounting hardware, check out the available parts in the Mercedes fuel tanks and filler pipes category.