Mercedes W211 Saloon Diesel Complete Fuel Tank 80L A2114700902

Mercedes W211 Saloon Diesel Complete Fuel Tank 80L is a factory fuel system component designed for diesel versions of the popular E-Class. The offered tank belongs to the Fuel tanks and filler pipes group and serves as a solid foundation for professional repair or replacement of a damaged part in your Mercedes, ensuring proper diesel storage and stable operation of the fuel system.

Specifications and technical data

• SKU: A2114700902
• 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 fuel tank is dedicated to the W211 sedan body style with a diesel engine. Its task is to safely store fuel, maintain the correct fill level, and work in conjunction with fuel system accessories such as lines, the pump, or level sensors. The tank's construction is adapted to the specifics of diesel units, which promotes stable engine operation across the full load range.

With an 80-liter working capacity, the tank allows for comfortable planning of longer routes, reducing the frequency of refueling. This is particularly important in higher-class vehicles, where adequate range and predictable fuel system behavior are expected.

Technical parameters and characteristics

The component has been designed for use with Diesel fuel, which is significant for both material resistance and the internal geometry of the tank. The structural solutions employed take into account the typical operating conditions of an E-Class passenger car – from city driving to long highway journeys.

The tank has a specific weight, which should be taken into account when planning installation and removal – in practice, it is recommended to perform this work on a workshop lift or service pit, using appropriate supports. Such fuel system components require careful handling of connectors, mounts, and sealing surfaces to maintain tightness and proper interaction with other components after installation.

Condition, selection, and installation

The offered tank is a used part, which in practice means a favorable cost-to-functionality ratio while maintaining the original geometry and mounting points. For this type of part, it is crucial to match it according to the manufacturer's markings – the product has an OEM number and interchangeable numbers that facilitate precise identification and selection for a specific equipment version.

Before installation, it is recommended to:

• verify compatibility by OEM number or reference numbers,
• inspect the condition of connection ports and mounting sockets,
• check the cleanliness of the tank interior before the first refueling.

Professional installation ensures system tightness, proper venting, and correct interaction with the fuel level sensor and other fuel system components.

Application in fuel system service and regeneration

Replacing the fuel tank is often part of broader work on the fuel system – especially in vehicles used intensively or after mechanical damage. Using an original tank dedicated to the Mercedes W211 reduces the risk of fitment issues, leaks, or incorrect fuel level readings.

For users and workshops that want to deepen their knowledge of fuel system diagnostics and maintenance, a guide describing the interaction of the tank with injectors and pumps, part selection by OEM numbers, and regeneration principles will be useful. Detailed information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding repairs within the Mercedes fuel 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 additional tanks, filler pipes, or return lines, check the available parts in the Mercedes fuel tanks and filler pipes category.