Mercedes W211 Complete Fuel Tank Diesel Fuel Reservoir 65L A2114708701

Mercedes W211 Complete Fuel Tank Diesel Fuel Reservoir 65L is a factory-original fuel system component designed for Mercedes vehicles with diesel engines. It ensures safe storage of diesel fuel and stable operation with the fuel pump, lines, and auxiliary equipment, which directly impacts the engine's performance and vehicle reliability.

Specifications and technical data

• SKU: A2114700902-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2114700902
• Substitutable numbers: A2114700902, A 211 470 09 02, A2114705894, A 211 470 58 94, A2114704601, A 211 470 46 01
• 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 designed to work with diesel engines in Mercedes E-Class W211 generation models. Its task is to safely store fuel, maintain the correct liquid level, and ensure a stable supply to the low and high-pressure pumps under various road conditions, including dynamic driving and load changes.

The tank's construction is adapted to the characteristics of diesel units, where maintaining an appropriate fuel column and limiting system aeration is crucial. The 65-liter operating capacity allows for comfortable planning of longer routes while maintaining a reasonable compromise between range and vehicle weight.

Construction, installation, and vehicle integration

The tank is a complete unit intended for installation in the chassis of the Mercedes W211, with prepared mounting points and connections for the fuel and venting system. Thanks to its factory origin, it maintains the correct geometry, which facilitates installation in the original body points without the need for structural modifications.

The component has been designed to work with dedicated fuel lines, the fuel level sensor, and the filler system. The properly selected weight of the tank helps maintain the correct load distribution in the vehicle, which is important for both handling and the durability of suspension components.

Operational parameters and benefits of use

As a part intended for diesel engines, the tank is adapted to work with diesel fuel, which has different viscosity and chemical properties than gasoline. The appropriate internal design limits fuel sloshing, which helps maintain a stable supply even at low liquid levels.

Replacing a worn or damaged tank with this component allows you to resolve common operational problems, such as leaks, fuel odor around the vehicle, venting difficulties, or fuel level reading disturbances. Using a component matched to a specific generation of Mercedes minimizes the risk of improper fitment and subsequent failures.

Condition, verification, and selection by part numbers

The offered tank is a secondary market component, which allows for an economical repair of the fuel system while maintaining the original design. Before installation, it is recommended to perform a standard check of tightness, the condition of connection ports and mounting sockets, as well as verify compatibility with the specific vehicle equipment version.

For proper selection, it is worth using the OEM part number and interchangeable numbers, as well as vehicle identification data. This allows you to precisely match the tank to the specific Mercedes configuration, avoiding problems with installation and subsequent operation.

Integration with other fuel system components

Replacing the fuel tank is a good time to inspect the entire fuel system – lines, vent hoses, mounts, and accessories. A properly selected and installed tank works with the injection system, pump, and fuel filtration, influencing engine performance and reducing the risk of air entering the system.

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 supply lines, filler pipes, or venting elements, check the available parts in the Mercedes Fuel tanks and filler pipes category.

To better plan service work and understand the relationships between the tank, pump, and injectors, it is worth using the advice contained in the article "Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration", where diagnostics, selection by numbers, and principles of proper operation are discussed.