Fuel Filler Cap Mercedes W204 W212 Tank Cover Black Covering A2214700705

Visual condition of the part 

The product shows signs of use visible in the photos. 

Fuel Filler Cap Mercedes W204 W212 Tank Cover Black Covering is an original component from the Fuel filler flaps and caps group, designed for Mercedes mid-size and luxury models. The black cap ensures a tight seal of the filler neck, supports the proper operation of the fuel system, and helps maintain the appropriate level of operational safety.

Specifications and technical data

• SKU: A2214700705-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214700705
• Substitutable numbers: A2214700705, A 221 470 07 05, KD
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The presented fuel filler cap has been designed specifically for Mercedes W204 and W212 series vehicles. As a component of the refueling system, it is responsible for maintaining the tightness of the filler neck, limiting fuel evaporation, and protecting against the ingress of contaminants into the tank. A properly selected cap minimizes the risk of errors related to fuel system pressure and potential leaks.

The black color scheme allows for aesthetic matching to most body configurations and fuel filler recesses, maintaining a consistent, factory look of the vehicle. This is particularly important during post-accident repairs or when restoring a car to a condition close to the original.

Construction and performance properties

The cap belongs to the group of consumable parts that operate in variable weather conditions – from low temperatures to high sun exposure. The design provided by the manufacturer takes these loads into account, ensuring stable operation of the locking mechanism and adequate resistance to fuel and vapors. As a result, the cap can be safely used in daily operation, even with frequent refueling.

The used nature of the part means that the item comes from dismantling, which allows for maintaining the factory specification and fitment to the filler socket in a Mercedes. For many users, this is a practical solution that combines compliance with the original design with a more favorable purchase cost.

Selection by brand and catalog numbers

When selecting a fuel filler cap for a Mercedes, it is crucial to match it to the specific body generation and fuel system. This model has been developed with Mercedes vehicles in mind, which facilitates integration with the existing filler neck and locking mechanism. Verifying compatibility via catalog numbers and manufacturer markings helps avoid installation problems and ensures proper seating of the cap.

An additional advantage is the ability to compare interchangeable numbers in the technical specification, which facilitates the identification of the appropriate variant in the case of upgrades or previous repairs within the fuel system.

Significance for the fuel system

A functional fuel filler cap has a direct impact on the tightness of the fuel system, and thus on the stability of the engine and the vehicle's diagnostic systems. Leaks around the filler can lead to errors related to fuel evaporation, and in extreme cases, to accelerated degradation of components in the vicinity of the filler neck. Replacing a worn or damaged cap with an original component from the same design group is a simple yet effective way to restore proper operating conditions of the system.

To better understand the role of this type of component in the entire power supply system, it is worth reading the guide on diagnostics and operation, such as the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses the relationships between individual elements of the fuel system.

Color and visual fit

The black color of the cap is universal and blends well with most body paints and the factory finish of the fuel filler recess. Thanks to this, after installation, the element does not draw attention to itself, maintaining the consistent, serial character of the vehicle. This is important both for aesthetic repairs and for recreating the original appearance of the car after replacing body parts.

Expanding the scope of repairs within the fuel filler area

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

Summary

Fuel Filler Cap Mercedes W204 W212 Tank Cover Black Covering is a practical solution for users who want to restore the proper tightness and functionality of the fuel filler while maintaining factory fitment. The original design, compatibility with specific Mercedes models, and neutral black color make it a technically safe and aesthetically consistent choice for repairs within the refueling system.