Mercedes W176 W246 Fuel Filler Tank Cap Diesel Red A2224700105

Mercedes W176 W246 Diesel Fuel Filler Cap A2224700105 is an original part from the fuel filler flaps and caps category, designed for diesel fuel systems. The red finish facilitates quick identification of the cap at the filler neck, and the manufacturer-standard construction supports safe operation of the fuel system in Mercedes compact class vehicles.

Specifications and technical data

• SKU: A2224700105
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2224700105
• Substitutable numbers: A2224700105, A 222 470 01 05
• Fuel type: Diesel
• Color: Red
• Category: Fuel Tank Caps

Purpose and Function of the Fuel Filler Cap

The fuel filler cap for Mercedes W176 and W246 models is responsible for securely closing the tank neck in diesel-powered cars. A correctly selected part limits vapor emissions, helps maintain proper system pressure, and reduces the risk of contaminants entering the tank.

For diesel engines, stable sealing of the filler neck is particularly important, as the quality of diesel fuel directly affects the operation of injectors, the pump, and the entire fuel system. Using a cap matched to the specific body series and fuel type supports long-term, predictable operation.

Technical Characteristics and Color

The presented cap belongs to the group of elements dedicated to vehicles powered by diesel fuel. The fuel type marking helps avoid mistakes during refueling and facilitates part selection based on service documentation.

The red color of the cap is visually clear and helps to quickly locate the filler point, which is important both during daily use and for service work. At the same time, the color provides a practical distinction from other elements in the filler area, improving operational ergonomics.

Condition of the Part and Benefits of Choosing a Used Part

The offered fuel filler cap is a used part, sourced from vehicle dismantling. This type of component, while maintaining the functionality of the closing and sealing mechanism, can be a cost-effective alternative to a new replacement, especially for operational repairs.

Choosing an original, used cap allows for compliance with the original fuel system design while also reducing service costs. This is a solution often used in professional workshops when replacing fuel tank accessory components.

Selection, Installation, and Operation in the Fuel System

When selecting a fuel filler cap for a Mercedes W176 or W246 series, matching it to the fuel type and tank neck design is crucial. A correctly selected part should ensure:

• stable seating on the filler neck without play,
• proper sealing when closed,
• easy operation during refueling,
• compatibility with the fuel system parameters for diesel engines.

Regular inspection of the cap's condition – particularly the seal and closing mechanism – is important for maintaining system integrity. More practical information on the impact of accessory components on the tank and the entire fuel line can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses the diagnostics and operation of fuel components.

Other Mercedes Fuel Filler Flaps and Caps

If you are also looking for other Mercedes fuel filler flaps and caps suitable for various models of this brand, check out our dedicated category: Mercedes fuel filler flaps and caps. This will allow you to easily compare available solutions and select the part appropriate for your specific body type and fuel system configuration.