Intended Use and Fitment for BMW F21 / F21N LCI

The presented fuel filler flap has been specifically designed for the BMW F21 and F21N series after the LCI facelift. This ensures the preservation of factory gaps, the correct body line, and compatibility with the standard opening and closing mechanism. Its placement on the rear of the vehicle guarantees full compliance with the original mounting point, eliminating the need for bodywork modifications.

Thanks to the use of original geometry, the part, after proper installation, maintains:

visual consistency with the rear fender and bumper,

correct adhesion to the body shell,

proper operation of the hinge and opening mechanism.

Karmesinrot - A61 Color and Aesthetic Value

The flap is finished in the factory color Karmesinrot - A61, characteristic of selected BMW 1 Series configurations. This allows for reduced or completely eliminated repainting needs when matched appropriately with the body paint, shortening repair time and lowering costs. A uniform paint finish contributes to maintaining a cohesive vehicle appearance after repair.

The part from this reference is particularly suitable for situations where:

the flap has suffered mechanical damage (cracks, deformations),

the paint on the original part is heavily scratched or corroded,

the vehicle requires restoration of the original rear body appearance after collision repair.

Construction, Installation, and Functionality

The fuel filler flap from this series is a body part designed to work with BMW's standard fuel filler system. Its construction allows for installation in the original mounting points, facilitating workshop operations and reducing the risk of fitment issues. The used nature of the part enables economical repairs while maintaining the manufacturer's original specifications.

The main advantages of this solution include:

preservation of the original body line on the rear of the vehicle,

compatibility with the standard flap opening mechanism,

possibility of installation as a replacement for a damaged part without additional adaptations.

Used Condition and Economic Benefits

The offered fuel filler flap is a part in used condition, which is a cost-effective solution for users seeking original BMW components at a reasonable price. Compared to new parts, a used OEM part helps reduce repair costs while maintaining compliance with the vehicle's factory specifications.

This approach is particularly attractive for:

owners of cars involved in collisions who want to restore the vehicle to full visual functionality,

body and paint shops carrying out budget repairs,

individuals who prioritize maintaining original BMW body parts.

Fuel System Compatibility – Knowledge and Diagnostics

When replacing fuel filler related components, it is advisable to ensure proper diagnostics of the entire system, including the tightness of the tank, lines, and accessories. To better understand the relationships between the filler flap and other components, an article describing the construction and operation of the fuel system will be helpful – detailed information can be found in the material Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

If you are planning a comprehensive repair of the rear body of your BMW and also need other parts related to fuel tank access, such as additional covers or mounting accessories, check the available parts in the BMW Fuel Filler Flaps and Accessories category.

BMW 1 Series F21 F21N LCI Fill-in Flap Filler Fuel Cover Karmesinrot Red A61

Specifications and technical data

Intended Use and Fitment for BMW F21 / F21N LCI

Karmesinrot - A61 Color and Aesthetic Value

Construction, Installation, and Functionality

Used Condition and Economic Benefits

Fuel System Compatibility – Knowledge and Diagnostics