BMW X3 E83 Side Skirt Aerokit Door Sill Cover Left N/S Black Sapphire - 475

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

BMW X3 E83 Side Skirt Aerokit Door Sill Cover Left N/S Black Sapphire is an original body component from the Side skirts group, designed for installation on the left side of the vehicle. The cover in Black Sapphire Metallic - 475 allows for a visually consistent completion of the factory AERO package and ensures proper protection of the sill area against mechanical damage.

Specifications and technical data

• SKU: 0302753-BS
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0302753
• Substitutable numbers: 51770302753, 0302753, BG
• Weight: 150
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Running Boards & Side Bars

Purpose and function of the component

The presented side skirt cover has been designed specifically for the BMW X3 E83 model as the left element of the AERO package. Its task is to protect the sill area from stone chips, dirt, and minor damage, while maintaining the factory side line of the body. Placement on the left side of the vehicle ensures proper fitment to the sill geometry and mounting points provided by the manufacturer.

Color and visual fitment

The finish in the Black Sapphire Metallic - 475 shade allows for aesthetic integration of the cover into the vehicle body maintained in the same or similar paint tone. Thanks to this, the element works well both when replacing a damaged trim and when restoring the consistent look of the entire AERO package after body and paint repairs.

Technical characteristics and installation

The cover belongs to a group of body components with a relatively low weight, which facilitates handling during installation and removal. The design intended for the specific BMW X3 E83 model allows for installation at factory mounting points, without the need to interfere with the sill structure. Placement on the vehicle on the left side ensures proper alignment with the doors and other elements of the aerodynamic package.

Condition and service application

The element comes from the secondary market, which makes it a practical solution for post-accident repairs, replacing a damaged trim, or completing missing components of the AERO package. This type of side skirt cover is often used in workshops specializing in BMW body repairs, where compliance with factory specifications and the ability to maintain the original appearance of the vehicle are important.

Compatibility and parts group

As an element from the Side skirts category, the cover works with other covers and side moldings, creating a consistent protective set in the lower part of the body. The product has a dedicated OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific version of the BMW X3 E83 equipment in service catalogs and parts selection systems.

If you are planning a comprehensive repair or upgrade of the sill area in your BMW and need other elements from the same group, such as covers, overlays, or additional moldings, check the available parts in the BMW side skirts category.

For users interested in a broader context of vehicle construction and the impact of body elements on vehicle handling, an article describing the operation of the steering system, power steering, and examples of used parts may be helpful – you can find it here: Steering system and power steering – how does it work and what breaks?.