Mercedes A E S Class W168 W210 W220 Fuel Filler Cap Tank Cap Black A2204700005

MERCEDES W168 W210 W220 Fuel Filler Cap is an original part designed for factory fuel systems in selected Mercedes models. It maintains the fuel system's seal, protects the filler neck from contamination, and supports the proper functioning of the system. Thanks to precise fitting for specific vehicle generations, it ensures stable and predictable performance in everyday use.

Specifications and technical data

• SKU: A2204700005
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2204700005
• Substitutable numbers: A2204700005, A 220 470 00 05, AS
• Location on the vehicle: Front, Left
• Color: Black
• Category: Other Air & Fuel Delivery

Purpose and Technical Function

The fuel filler cap in Mercedes A-Class W168 and E-Class and S-Class W210 / W220 models is responsible for securely closing the filler neck, which reduces fuel evaporation and protects the tank from moisture and dirt particles. A correctly selected part of this type is crucial for maintaining stable fuel system pressure and ensuring optimal engine performance parameters.

The presented cap is made in black, allowing for a cohesive match with the factory finish of the filler area. Its placement, indicated as the front left part of the vehicle, specifies its mounting point within the particular body construction.

Construction, Color, and User Ergonomics

The black color facilitates integration with original body elements and the fuel filler flap, maintaining a neutral, factory appearance. The cap's design is engineered to ensure:

• a secure fit in the filler neck,
• adequate sealing through repeated opening and closing,
• a comfortable grip when operating with gloves or in low temperatures.

A cap configured in this way minimizes the risk of contaminants entering the fuel and helps maintain proper operating conditions for the fuel system.

Benefits of Using an Original Fuel Filler Cap

Using a cap dedicated to specific Mercedes generations allows for adherence to factory assembly tolerances. In practice, this means:

• stable closing of the filler flap and no play in the socket,
• reduction of undesirable fuel odors around the vehicle,
• better protection against corrosion of components around the filler neck.

This solution is particularly important for vehicles used daily, where the cap is frequently operated and exposed to varying weather conditions. Maintaining a functional, sealed fuel filler cap is a simple way to increase fuel system reliability without interfering with more complex components.

Condition and Practical Application

The offered part is used, making it an attractive option for users seeking a factory-fit part within a reasonable budget. This type of component is suitable for replacing a damaged or lost cap, as well as for tidying up the fuel filler area after bodywork and paint repairs.

If you are planning a comprehensive repair or upgrade of the fuel supply area in your Mercedes and need other parts from the same group, such as additional caps, filler neck covers, or small mounting accessories, check the available parts in the Other Mercedes category.

Technical Knowledge and Part Selection

When selecting service parts for premium cars like Mercedes, it is advisable to rely on trusted sources and catalog numbers assigned to specific vehicle configurations. This helps avoid fitting issues and ensures proper integration with the existing body structure.

For drivers interested in a broader perspective on the design differences between standard and sport versions in the executive car segment, an article discussing the construction of engines, brakes, and chassis in Audi sport variants may be helpful – you can find it here: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.