BMW X3 E83 M Sport Door Sill Cover Skirt Left N/S Monacoblau Blue - A35

Visual condition of the part

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

BMW X3 E83 M Sport Door Sill Cover Skirt Left N/S Monacoblau Blue is an original M-line body component designed for installation on the left side of the BMW X3 E83 model. Finished in Monacoblau Metallic - A35, this sill cover ensures visual consistency of the bodywork and maintains the correct lines of the side skirt. It is a practical solution for post-accident repairs, visual corrections, or replacing missing M Sport package components.

Specifications and technical data

• SKU: 0403480-MB
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0403480
• Substitutable numbers: 51110403480, 0403480, BG
• Location on the vehicle: Left
• Color: Monacoblau Metallic - A35
• Category: Running Boards & Side Bars

Technical specifications and fitment

The presented part belongs to the Door Sill Covers category and has been specifically designed for the BMW X3 E83 M Sport version. The component's construction is adapted to factory mounting points, which facilitates installation and reduces the need for additional bodywork modifications or shape adjustments.

Placement on the left side of the vehicle ensures an accurate reproduction of the original sill geometry, and the profile of the cover is consistent with the body line characteristic of the M Sport package. As a result, the continuity of the contours and the correct transition between the sill, wheel arches, and the lower part of the doors are maintained after replacement.

Color and body aesthetics

The Monacoblau Metallic - A35 color is a distinctive metallic shade used by BMW, which complements the dynamic styling of the M Sport package. Using a cover in the matching color reduces the scope of painting required during repairs and makes it easier to maintain a consistent look for the entire side of the vehicle.

For BMW X3 E83 owners, not only mechanical fitment but also visual appeal is important – the correct shade and surface finish influence the perception of the entire side profile of the car. Using an original door sill cover in the correct color helps avoid tonal differences and a non-factory appearance, which is often encountered with non-original parts.

Purpose and service application

The M Sport door sill cover is particularly useful in situations where it is necessary to:

• replace a damaged component after a collision or scrape to the sill,
• replace a missing cover after previous body and paint repairs,
• restore the complete look of the M package in a BMW X3 E83,
• perform a visual correction of the left-side sill area.

This type of component is often chosen by workshops specializing in the BMW brand, as it allows for the preservation of the vehicle's factory character and proper alignment with adjacent body panels.

Why choose an original, used BMW cover

Original BMW components are designed for a specific model and equipment version, which translates into precise fitment and predictable performance during use. In the case of the sill area, this is important for both aesthetics and protecting the lower part of the body from dirt and minor mechanical damage.

A used OEM door sill cover is often a reasonable compromise between cost and quality – especially for local repairs where maintaining the original body line is crucial. If you want to better understand when choosing a used factory part is more beneficial than an aftermarket replacement, it is worth checking out this article: 5 reasons why a used OEM part is a better choice than a replacement.

Expanding your BMW sill area upgrade

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, overlays, or additional moldings, check out the available parts in the BMW Door Sill Covers category.