VW Volkswagen Golf 5k Mk6 Touran 1T Fuel Tank Cap Screw Diesel 5C0201550AB

VW Volkswagen Golf 5k Mk6 Touran 1T Fuel Tank Cap Screw Diesel is an original component from the Fuel filler flaps and caps group, designed for vehicles with diesel engines. It ensures a tight seal of the filler neck, stabilizes the fuel system operation, and helps maintain the proper conditions within the diesel tank, which is essential for the durability of engine components.

Specifications and technical data

• SKU: 5C0201550AB
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5C0201550AB
• Substitutable numbers: 5C0201550AB, 5C0 201 550 AB
• Fuel type: Diesel
• Part type: Fuel Tank Cap
• Category: Fuel Tank Caps

Purpose and technical function

The presented cap is a component dedicated to Volkswagen Golf 5K series, Mk6 generation, and Touran 1T models powered by Diesel fuel. Its task is to maintain controlled pressure in the tank, limit diesel evaporation, and provide effective protection against the ingress of contaminants and moisture into the fuel system. Thanks to a design compliant with the manufacturer's standards, the cap works with the factory filler neck, ensuring a secure fit and repeatable closure. This solution minimizes the risk of leaks that could lead to fuel system malfunctions or unwanted dashboard warnings.

Benefits of using an original fuel tank cap

Using an original fuel tank cap in a Volkswagen vehicle provides a range of practical operational benefits:

• maintaining proper tightness of the diesel fuel supply system,
• reducing the risk of dirt and water entering the tank,
• stable operating conditions for the pump and other fuel system components,
• secure fit to the filler socket without the need for modifications. For vehicles with diesel engines, it is particularly important that the cap is compatible with the characteristics of the diesel fuel system, which promotes smooth operation and facilitates the subsequent diagnosis of any potential faults.

Condition of the component and installation aspects

The offered cap comes from disassembly and is sold as a used part, which allows for combining a reasonable purchase cost with the preservation of the manufacturer's factory specifications. This type of component is generally installed directly in place of a worn or damaged cap, without the need for modifying the filler socket. Before installation, it is recommended to perform a standard visual inspection of the filler socket and the seal, followed by firmly pressing and closing the cap. A correctly seated component should provide a noticeable lock in the closed position, which translates into trouble-free operation during daily driving.

Technical support and selection for the fuel system

Selecting the correct fuel tank cap has a direct impact on the operation of the entire diesel supply system. In case of doubts regarding compatibility with a specific engine version or model year, it is worth referring to the manufacturer's catalog data or the part numbers assigned to the specific vehicle unit. To better understand the relationships between the cap, tank, pump, and injectors, a guide describing the construction and servicing of the fuel system will be helpful – you can find it in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where diagnostics, component selection, and operating principles are discussed.

Expansion of the fuel filler zone in Volkswagen

If you are planning a comprehensive repair or upgrade of the fuel filler zone in your Volkswagen and need other components from the same group, such as additional caps, flaps, or filler covers, check the available parts in the category Volkswagen fuel filler flaps and caps. In summary, VW Volkswagen Golf 5k Mk6 Touran 1T Fuel Tank Cap Screw Diesel is a practical solution for diesel engine users who expect compliance with factory specifications, proper fuel system operation, and simple installation in place of a worn component.