Fuel Filler Cap Mercedes W204 W207 W212 W218 Neck Gas Tank Cover A2214700605

Visual condition of the part

The product shows signs of use visible in the photos.

Fuel Filler Cap Mercedes W204 W207 W212 W218 Neck Gas Tank Cover is an original component from the Fuel filler flaps and caps group, designed for diesel fuel systems in Mercedes vehicles. The product ensures a tight seal of the filler neck, stabilizes the operating conditions of the fuel system, and reduces the risk of contaminants entering the tank.

Specifications and technical data

• SKU: A2214700605
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2214700605
• Substitutable numbers: A2214700605, A 221 470 06 05
• Category: Fuel Tank Caps

Function and application of the diesel fuel cap

The fuel cap in Mercedes cars is responsible for a controlled, secure closure of the filler neck, which is important both for protecting the fuel and for the proper operation of the tank ventilation system. For diesel engines, it is particularly important to maintain proper tightness to limit evaporation and the influence of external factors on the quality of the diesel fuel.

By using a dedicated fuel cap for a specific body series, you minimize the risk of leaks, fuel odor issues around the vehicle, and potential diagnostic errors related to fuel system pressure.

Design and fitment for Mercedes W169 / W211

The Fuel Filler Cap Mercedes W204 W207 W212 W218 Neck Gas Tank Cover has been designed with the geometry of the filler neck used in these generations in mind, which translates into proper fitment and ease of use. The design provides a comfortable grip, allowing for efficient opening and closing even when wearing work gloves or in lower ambient temperatures.

Properly selected sealing materials work in harmony with diesel fuel, limiting wear and hardening of rubber elements. As a result, the cap maintains stable operating parameters over a long period of use, and the user retains a repeatable, tactile closure of the filler.

Product condition and operational aspects

The offered item comes from disassembly and is in used condition, which means it may show signs of previous use but remains functional in the context of its role in the fuel system. For many users, this is a reasonable compromise between the purchase cost and maintaining the original manufacturer's specifications.

During installation, it is recommended to visually inspect the filler socket and clean the contact surface to fully utilize the sealing properties of the cap. A properly selected and installed element helps limit the ingress of dust, moisture, and fine contaminants into the filler area, which is beneficial for the long-term operation of the fuel system.

Benefits of using an original fuel cap

Using an original fuel cap in Mercedes cars brings a number of practical benefits:

• maintaining compliance with the factory fuel system design,
• stable, repeatable closure of the filler and predictable behavior during operation,
• reduction of the risk of leaks and unwanted fuel odors,
• better protection against contaminants in the filler neck area.

For users who consciously choose parts from disassembly, this is a way to maintain the technical consistency of the vehicle at controlled service costs.

Technical support and component selection

In the case of elements related to the fuel supply system, it is particularly important to correctly match components to the specific engine and body version. Selecting a fuel cap according to the manufacturer's markings allows you to avoid installation problems and ensures proper cooperation with the filler neck and accessories.

If you want to deepen your knowledge about the diagnostics and operation of the fuel system, it is worth checking out the guide material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses, among other things, component selection by manufacturer markings and the principles of proper maintenance.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Mercedes and need other elements 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.