Volkswagen VW Tiguan 5N Audi TT 8N Fuel Flap Tank Cap Cover Black 1K0201550S

Volkswagen VW Tiguan 5N Audi TT 8N Fuel Flap Tank Cap Cover is an original component from the Fuel filler caps and accessories group, designed for use in selected Volkswagen and Audi models. The black cap ensures a tight seal of the filler neck, supporting the proper operation of the fuel system and reducing fuel evaporation.

Specifications and technical data

• SKU: 1K0201550S-1
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K0201550S
• Substitutable numbers: 1K0201550S, 1K0 201 550 S
• Color: Black
• Category: Fuel Flaps & Components

Purpose and technical function

The fuel filler cap in vehicles such as the Volkswagen Tiguan 5N or Audi TT 8N is responsible for a controlled, stable closure of the filler neck. A properly selected component:

• prevents contaminants from entering the fuel tank,
• limits the escape of fuel vapors,
• supports the maintenance of proper pressure in the fuel system,
• reduces the risk of errors related to filler leaks.

Thanks to the use of a solution consistent with the factory specification, the cap works with the existing filler neck and fuel system components without the need for modifications.

Construction, color, and visual fit

The black color provides a neutral, universal look that harmonizes with most body and fuel filler recess configurations. This type of finish is practical for daily use, as it effectively masks typical signs of wear, such as minor dirt or dust.

The geometry of the cap has been designed to fit the factory filler sockets in Volkswagen Group vehicles. A properly shaped gripping surface facilitates unscrewing and tightening, which translates into ease of operation during refueling.

Performance parameters and benefits of use

As an element from the Fuel filler caps and accessories group, the cap plays an important role in the daily operation of the vehicle. Key benefits include:

• maintaining the tightness of the fuel filler under typical operating loads,
• compatibility with the factory filler neck design in Volkswagen and Audi models,
• simple manual operation without the need for additional tools,
• visual consistency with original body components.

Selecting a cap that complies with the manufacturer's markings facilitates diagnostics and service, and minimizes the risk of problems with thread fitment or sealing.

Condition and service application

The item is offered as used, which makes it a reasonable choice in situations where the priority is an economical repair while maintaining the original design. This type of cap is particularly suitable for:

• replacing a damaged or lost fuel filler cap,
• restoring the completeness of the vehicle after body and paint repairs,
• fuel system service when replacement of the filler closing element is required.

Using an original component allows you to maintain the technical integrity of the vehicle and reduce the risk of leaks resulting from the use of random replacements.

Integration with the fuel system and service knowledge

The fuel filler cap works directly with the filler neck and the fuel tank, so its condition affects the operation of the entire system. In case of problems with the smell of fuel around the vehicle, error messages related to the fuel system, or difficulties during refueling, it is worth considering checking the cap as one of the elements of diagnostics.

To better understand the relationships between the cap, the tank, and other components, a specialized guide on the diagnostics and operation of the fuel system may be helpful – you can find it in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Volkswagen and need other elements from the same group, such as additional caps, filler covers, or security accessories, check the available parts in the Volkswagen fuel filler caps and accessories category.