BMW 3 Series F30 F80 Trunk Floor Dividing Element 7311618

BMW 3 Series F30 F80 Trunk Floor Dividing Element is an original, factory-made BMW component designed for the rear section of the vehicle. This practical foam element is responsible for organizing the trunk floor space, improving organization, and providing stable support for other equipment modules.

Specifications and technical data

• SKU: 7311618
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7311618
• Substitutable numbers: 51477311618, 7311618
• Location on the vehicle: Rear
• Category: Floor Mats, Carpets & Boot Liners

Function and application in the trunk

The foam trunk floor dividing element in F30/F80 series models acts as a structural filler for the rear part of the body. It is responsible for:

• stable support of the trunk floor,
• separation of individual zones under the floor,
• maintaining the proper alignment of other components in the rear of the vehicle.

Thanks to its precise fit to the body geometry, the foam element ensures predictable behavior of the trunk floor during daily use, reduces unwanted play, and minimizes the risk of rattling and resonance.

Construction and OEM fitment

The element in question was designed as part of the factory equipment, which means its shape, rigidity, and mounting method comply with the manufacturer's requirements. The foam has properly formed support zones and cutouts that work with the structure of the rear body and other trunk floor components.

Original manufacturing translates into repeatable fitment and no need for modifications during installation. In practice, this means that once properly seated, the element behaves like a factory-fitted part, without compromises in terms of geometry or stability.

Vehicle placement and installation

The foam is intended for installation in the rear of the vehicle, in the trunk floor area. The design has been prepared for factory support points and the shape of the recess, which facilitates installation and reduces the risk of incorrect positioning. Proper seating of the element allows for:

• maintaining the designed height and rigidity of the floor,
• correct alignment of upholstery and other trunk modules,
• maintaining the structural integrity of the rear zone of the vehicle.

Replacing a worn or damaged foam element with an original component is recommended wherever deformations, material loss, or problems with the correct alignment of the trunk floor occur.

Characteristics of the used OEM element

The offered foam is a used part, sourced from dismantling, which allows for maintaining factory specifications while optimizing costs. The used OEM component retains its original geometry and way of interacting with the body, making it the right choice when you want to ensure compliance with the manufacturer's design without the need for adaptation or fitting aftermarket replacements.

Such a solution is particularly beneficial for post-accident repairs, trunk interior reconstruction, or restoring the vehicle to a factory-like state, while maintaining the structural integrity of the rear body section.

Support in selection and additional information

If you want to better understand when it is worth choosing an original, used component instead of a replacement, the following practical guide will be helpful: 5 reasons why a used OEM part is a better choice than a replacement. You will find concrete examples and selection criteria useful when planning repairs for your car.

If you are planning a comprehensive repair or upgrade of the rear trunk zone in your BMW and need other elements from the same group, such as mats, carpets, or additional protective inserts, check the available parts in the BMW trunk liners, mats, and trays category.