BMW F10 F20 F30 Fuel Tank Filler Cap Cover Screw 7482902

BMW F10 F20 F30 Fuel Tank Filler Cap is an original part from the Fuel Filler Flaps and Caps group, designed for BMW F-series models. It ensures a tight seal for the fuel tank, stabilizes the fuel system's operation, and helps maintain proper fuel operating conditions. Thanks to its factory OEM design, the cap is precisely fitted to the filler neck, facilitating installation and daily use.

Specifications and technical data

• SKU: 7482902
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7482902
• Substitutable numbers: 7482902, 16117482902
• Category: Fuel Tank Caps

Purpose and Technical Function

The fuel filler cap in BMW vehicles is responsible for the tightness of the fuel system, protection against external contaminants, and pressure stabilization within the tank. In F-series vehicles (including F10, F20, F30), it is a component linked to the venting system design and emission control systems, making the use of the correct cap important for both safety and proper engine operation.

The original geometry and seal profile ensure proper seating against the filler neck, minimizing the risk of fuel evaporation and the ingress of moisture or dirt into the tank. This is particularly crucial in modern powertrains where the fuel system operates under strictly defined pressure conditions.

Construction and Fit for BMW

The BMW F10 F20 F30 Fuel Tank Filler Cap is designed as an OEM part, meaning it adheres to factory manufacturing standards and is compatible with the fuel filler neck in F-series body styles. The cap's construction is adapted to the original mounting points, ensuring installation without the need for modifications to the filler neck or additional adapters.

Key structural features of this type of cap include the appropriately selected body material, seal profile, and closing mechanism, which together ensure:

• stable seating in the fuel filler neck,
• consistent sealing with each tightening,
• resistance to typical operational stresses in the filler area.

Benefits of Using an Original BMW Cap

Using a cap from the Fuel Filler Flaps and Caps group specifically designed for BMW F-series vehicles allows for consistency with the vehicle's factory specifications. In practice, this translates to:

• reduced risk of diagnostic errors related to fuel system leaks,
• better protection of the tank's interior from dust, water, and other contaminants,
• maintenance of proper fuel system operating parameters in the long term.

For users who pay attention to compliance with BMW service documentation, choosing an OEM part is also important for subsequent diagnostics and potential inspections.

Condition, Origin, and Part Selection

The offered cap is a used part, which for original BMW components often represents a sensible compromise between cost and maintaining factory quality. This type of part allows for the restoration of full fuel filler system functionality without resorting to aftermarket alternatives with uncertain fitment.

When selecting a cap for your car, it's worth paying attention to compatibility with the specific body generation and the vehicle's fuel system. Manufacturer markings and reference numbers can be helpful in verifying compatibility with your particular BMW model.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your BMW and need other parts from the same group, such as additional caps, flaps, or related mounting components, check the available parts in the BMW Fuel Filler Flaps and Caps category.

Fuel System Operation and Technical Knowledge

To fully utilize the potential of a functional fuel filler cap, it's beneficial to understand how its seal affects the entire engine fuel supply system, including the operation of the tank, pumps, and injectors. A detailed discussion of these relationships, along with practical tips on diagnostics and selecting parts by manufacturer markings, can be found in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”.

If you are considering the choice between new and used components for your car, a comparison of costs and durability of different solutions, available in the material “New or Used? Comparing the Cost and Quality of Car Parts”, may also be helpful.