BMW 3 Series F30N F30 LCI Cover Fuel Filler Pot Carrier Cap 7374537

The BMW F30N F30 LCI Fuel Filler Flap Cover is an original body part from the Fuel Filler Flaps and Caps group, designed for the facelifted (LCI) BMW 3 Series models. This used OEM part ensures a factory-like fit, consistent body appearance, and proper protection of the fuel filler neck from dirt and moisture.

Specifications and technical data

• SKU: 7374537
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7374537
• Substitutable numbers: 7374537, 51177374537, ASZ
• Category: Fuel Tank Caps

Purpose and Function of the BMW Fuel Filler Flap

The fuel filler cover on the BMW F30/F30N LCI is responsible for covering the fuel filler neck and maintaining the aesthetic line of the vehicle's side body. As an OEM body component, it is designed to:

• ensure a tight seal for the fuel filler area,
• protect the fuel cap and filler neck from dirt, salt, and water,
• maintain the correct geometry of the fender and door contours,
• work with the factory opening and locking mechanism.

This ensures both the functionality of the refueling system and the cohesive appearance of the BMW's side body.

Construction and Fitment for BMW F30/F30N LCI

The discussed fuel filler flap cover is structurally designed to fit the facelifted (LCI) F30 generation. This means compatibility with:

• factory mounting points on the body,
• the original hinge and opening spring,
• the standard central locking mechanism (if present in the vehicle's configuration),
• the contour lines and radii characteristic of the F30 LCI.

This precise fit minimizes the need for additional modifications and allows for installation in place of a damaged or missing flap while maintaining factory assembly tolerances.

Part Condition and Practical Aspects

This part comes from the secondary market, allowing for an economical replacement of a damaged flap while maintaining original BMW specifications. A used cover is practically suitable as:

• a solution for accident repairs and minor bodywork corrections,
• a replacement in case of corrosion or cracking of the original flap,
• a part for restoring vehicle completeness before sale or insurance valuation.

Its factory origin aids in maintaining a uniform paint appearance after potential color matching and ensures proper integration with the existing bodywork.

Installation and Best Service Practices

Replacing the fuel filler flap on the BMW F30/F30N LCI is typically a workshop task of moderate difficulty. During installation, it is advisable to pay attention to:

• checking the condition of the hinge and return spring,
• correctly aligning the gaps with the fender and rear door,
• verifying the operation of the opening mechanism from inside the vehicle (if applicable),
• checking the locking function with the central lock.

For certainty in selecting the correct part based on body version and year, it is recommended to use the OEM number or interchangeable numbers visible in the technical specifications, which minimizes the risk of purchasing an incompatible item.

If you need other parts to secure the fuel filler in your BMW and want to maintain the visual and technical consistency of the entire refueling system, check the available parts in the BMW Fuel Filler Flaps and Caps category.

Technical Support and Fuel System Knowledge

For users who want to better understand the relationship between the fuel filler flap and other components of the fuel supply system, a guide describing the diagnostics, selection, and operation of fuel components will be useful. Detailed information can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses, among other things, part selection by OEM numbers and practical service tips.