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 specifically for models of this series. This used, original component from the Fuel filler flaps and caps group allows for the restoration of a proper filler seal and an aesthetic body appearance. The black color facilitates integration with the bodywork and other exterior elements.

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 models is responsible for tightly sealing the filler neck, which limits fuel evaporation and protects the tank from external contaminants. This element works with the fuel system, influencing stable engine operating conditions and proper vapor discharge.

The presented cap is intended for installation in the front, left part of the vehicle, in accordance with the factory body design. Such placement ensures convenient access during refueling and consistency with the original bodywork.

Construction, color, and fitment

The black color of the housing allows for a neutral integration of the cap into the body line, regardless of the vehicle's paint. As a result, the element does not distract from the bodywork while maintaining a consistent, technical character typical of solutions used in Mercedes vehicles.

The cap's construction is prepared for factory mounts in the W168 series, which facilitates installation and minimizes the risk of leaks. Properly selected sealing geometry allows for stable closure of the filler and repeatable operation during daily use.

Benefits of using an original cap

Using an original fuel filler cap in place of a damaged or missing element brings a number of practical benefits:

• maintaining the tightness of the refueling system and limiting the ingress of contaminants,
• preserving the correct operating conditions of the fuel system,
• consistent exterior appearance of the vehicle thanks to the matched color scheme,
• installation consistent with factory mounting points, without modifications.

The used component allows for an economical repair while maintaining proper fitment to the body and fuel system.

Installation zone and operation

The placement of the cap in the front, left part of the vehicle requires maintaining the appropriate geometry of the element so that it works with the filler flap and the neck seal. A properly selected cap facilitates daily refueling, ensuring smooth opening and closing as well as stable positioning relative to the bodywork.

Regular inspection of the condition of the cap and seal is important for long-term, trouble-free operation of the fuel system. Replacing a worn element with an original cap dedicated to the W168 series helps reduce the risk of moisture and dirt entering the filler zone.

Technical support and additional materials

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

To better understand the impact of filler tightness on the operation of the entire fuel supply system, it is worth reading the guide describing the diagnostics and operation of fuel supply elements: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.