Fuel Filler Cap Mercedes W169 W204 W211 W203 W207 Tank Cover Black A2114700505

Visual condition of the part

The product shows signs of use visible in the photos.

Fuel Filler Cap Mercedes W169 W204 W211 W203 W207 Tank Cover Black is an original component from the Fuel filler flaps and caps group, designed for Mercedes vehicles with petrol engines. It maintains the tightness of the refueling system, stabilizes fuel operating conditions, and helps reduce evaporation, which promotes the proper operation of the fuel supply system.

Specifications and technical data

• SKU: A2114700505
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2114700505
• Substitutable numbers: A2114700505, A 211 470 05 05
• Fuel type: Petrol
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The fuel filler cap in Mercedes A, C, and E-Class models is responsible for the controlled sealing of the petrol tank neck. A properly selected component:

• ensures the tightness of the refueling system during daily use,
• limits the escape of petrol vapors,
• supports stable pressure within the tank,
• protects against the ingress of external contaminants.

As a result, the fuel system maintains predictable operating parameters, and the petrol engine can maintain proper fuel doses under various load conditions.

Performance parameters and compatibility

The presented cap is intended for petrol-powered systems, which is important for the type of seals used and the material's resistance to fuel vapors. The black color scheme facilitates aesthetic matching to most factory fuel filler flaps in Mercedes vehicles without interfering with the bodywork appearance.

The original Mercedes origin means maintaining factory dimensions and geometry of the working element, which translates into proper engagement with the filler neck thread and correct compression of the seal.

Component condition and installation aspects

The offered cap comes from disassembly and is a used item, which represents a reasonable compromise between cost and functionality when servicing older Mercedes models. This type of part, while maintaining efficient geometry and an intact sealing zone, can continue to be used under standard road conditions.

The installation of the fuel filler cap is generally straightforward and boils down to seating it in the tank neck and checking for proper closure. In practice, this is an operation that can be performed independently, without specialized tools, provided that caution and cleanliness are maintained around the filler area.

Benefits of using an original cap

Using a factory fuel filler cap in Mercedes cars brings a number of practical benefits:

• Stable conditions in the fuel tank – limiting uncontrolled exchange of air and vapors.
• Better protection of the fuel system against external dust and moisture.
• Visual consistency with the bodywork thanks to the black color of the element.
• No need for adaptation – the cap is designed for the factory filler socket.

This solution is particularly beneficial when operating the vehicle in urban and mixed traffic, where frequent refueling requires repeatable, secure closing of the filler.

If you are planning a comprehensive repair or modernization of the fuel filler area in your Mercedes and need other components from the same group, such as additional caps, flaps, or neck covers, check the available parts in the Mercedes fuel filler flaps and caps category.

Fuel system operation and service knowledge

To fully utilize the potential of a functional fuel filler cap, it is worth looking at the entire fuel supply system as an interconnected system. Information on diagnostics, component selection by catalog numbers, and principles of regenerating key sub-assemblies can be found in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

For vehicles where the availability of new components is sometimes limited, components from disassembly are a practical solution. You can read more about this approach, its cost advantages, and ways to verify used parts in the material: No parts at the dealership? How to handle the repair of older models using parts from disassembly.