BMW X3 E83 Side Skirt M Sport Sill Cover Left N/S Black Sapphire Metallic - 475

Visual condition of the part

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

BMW X3 E83 Side Skirt M Sport Sill Cover Left N/S Black Sapphire Metallic is an original M-line body component designed for installation on the left side of the BMW X3 E83 model. Finished in Black Sapphire Metallic - 475, this side skirt ensures a consistent look with the factory paintwork and helps maintain the characteristic, dynamic style of the M Sport package. It is a practical solution for users looking to restore the aesthetics of their side sills and protect them against operational wear and tear.

Specifications and technical data

• SKU: 0403480-BS1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0403480
• Substitutable numbers: 51110403480, 0403480, BG
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Running Boards & Side Bars

Purpose and fitment for the BMW E83

The presented side skirt has been designed specifically for the BMW X3 E83 M Sport body version, intended for the left side of the vehicle. Thanks to the factory mounting geometry and the properly profiled lower body edge, it ensures precise fitment with the sill and adjacent body panels. Installation is performed in place of the original part, allowing for the preservation of the factory side line and proper door edge clearance.

Black Sapphire Metallic - 475 finish

The Black Sapphire Metallic - 475 color is a characteristic metallic black shade used by BMW, which complements both light and dark body elements well. Using this color on the side skirt allows you to:

• maintain visual consistency with the body paint,
• minimize the visibility of minor dirt,
• emphasize the sporty character of the M Sport version.

As a result, the component integrates harmoniously into the side line of the car, without introducing color differences typical of non-factory replacements.

Functional characteristics and role in the bodywork

The M-version side skirt serves both an aesthetic and protective function. It is responsible for shielding the lower part of the sill against typical operational stresses, such as minor stone chips or scratches caused by entering and exiting the vehicle. Proper fitment to the body limits the accumulation of debris in the sill area, which helps keep the bodywork in better condition for a longer time.

The element belongs to the Side skirts category, meaning it has been designed to operate in demanding external conditions, taking into account mechanical loads and the influence of atmospheric factors.

Condition, origin, and identification parameters

The side skirt is a used component, which allows for a favorable balance between purchase cost and compliance with BMW factory specifications. The product has assigned manufacturer markings and interchangeable part numbers, which enable clear identification and verification of compatibility with a specific vehicle configuration. In the technical description of the product, you will also find the BMW brand designation, placement on the vehicle, and color code, which facilitates matching it to your specific X3 E83 unit.

Application in repairs and upgrades of the sill area

Replacing the side skirt is particularly recommended after mechanical damage, corrosion, or intensive use in urban and road conditions. Installing an original M Sport line component allows you to restore the consistent appearance of the side body section without the need to interfere with the sill structure. This is a solution that works well both for post-accident repairs and for visual refreshing of the car when the existing side skirt shows clear signs of wear.

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

Technical support and cost optimization

When selecting body components, it is worth paying attention to the compatibility of the equipment version (including M Sport) and the paint color to avoid additional painting work. Used original components often represent a reasonable compromise between quality and repair cost, especially in the case of external elements exposed to typical signs of wear.

If you are interested in the broader context of using used parts in vehicle service and want to better plan your repair budget, it is worth reading the analysis of costs and durability using the example of Volkswagen units in the article Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs.