Mercedes W168 Fuel Filler Cap Tank Cap Black Covering A2154700005

Mercedes W168 Fuel Filler Cap Tank Cap Black Covering is a precisely fitted refueling system component designed for Mercedes vehicles. The black cap, mounted in the front left part of the bodywork, ensures a tight seal of the filler neck, stabilizes the refueling process, and helps maintain proper operating conditions for the fuel system during daily use.

Specifications and technical data

• SKU: A2154700005
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2154700005
• Substitutable numbers: A2154700005, A 215 470 00 05, BG
• Location on the vehicle: Front, Left
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The fuel filler cap in Mercedes A-Class W168 models is responsible for a controlled, secure closure of the filler neck. A properly selected component reduces the risk of contaminants entering the fuel system, stabilizes fuel storage conditions in the tank, and supports the maintenance of correct engine operating parameters.

Its placement in the front zone on the left side of the vehicle facilitates access during refueling and allows for convenient operation in urban conditions as well as on longer trips. The black color of the cap blends well with most body configurations, maintaining a consistent, neutral exterior appearance.

Construction, fitment, and installation

The offered cap belongs to the Fuel filler flaps and caps group, meaning it has been designed to work with the factory filler socket in Mercedes vehicles. The design, intended for a specific location on the vehicle, promotes proper fitment with the bodywork and correct compression of the seal when closed.

The item is used, making it a sensible choice for vehicle maintenance when the priority is to maintain functionality and compatibility with the original solution at optimal costs. Replacing a worn or damaged cap with a functional equivalent allows for restoring the proper operation of the fuel filler zone without interfering with other components.

Benefits of use in Mercedes W168

Using a dedicated fuel filler cap in a Mercedes W168 translates into a number of practical operational benefits:

• maintaining the tightness of the fuel filler and limiting the ingress of dirt and moisture,
• maintaining proper operation of the refueling zone without the need for body modifications,
• consistent, neutral appearance thanks to the black color scheme,
• possibility of economical repair in case of damage to the factory component.

For users who pay attention to the technical correctness of repairs, it is important that the cap comes from the same design group as the original solutions used in Mercedes vehicles, which promotes the maintenance of predictable performance parameters.

Selection by numbers and technical support

When selecting a fuel filler cap for a specific body and engine version, it is worth using the OEM number and interchangeable numbers assigned to this component. This allows you to verify compatibility with the specific vehicle configuration and avoid problems with installation or fitment with the bodywork.

If you want to deepen your knowledge about the diagnostics and operation of the fuel system, including the role of the tank and associated components, the following article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical tips there regarding the selection of components by numbers and their proper handling.

Additional information on how to effectively use OEM numbers when purchasing used parts can be found in the guide: how to choose the right car part by VIN and OEM number. This is useful support when planning repairs based on original manufacturer markings.

Related items in the Mercedes Fuel filler flaps and caps category

If you are planning a comprehensive repair or upgrade of the fuel filler zone 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.