BMW X5 E70 M Sport Sill Strip Side Skirt Right O/S Black Sapphire - 475

Visual condition of the part

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

BMW X5 E70 M Sport Sill Strip Side Skirt Right O/S Black Sapphire is an original body component designed for the M Sport version, mounted on the right side of the vehicle. Thanks to its factory-molded profile and precise fit to the X5 E70 sill line, it ensures a cohesive look and proper airflow guidance along the lower side of the body. This solution maintains the characteristic, dynamic appearance of the M Sport package while providing functional protection for the sill.

Specifications and technical data

• SKU: 8037290-BS1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8037290
• Substitutable numbers: 51778037290, 8037290, BG
• Weight: 150
• Location on the vehicle: Right
• Color: Black Sapphire Metallic - 475
• Category: Splash Guards & Mud Flaps

Purpose and function of the sill component

The M Sport sill strip on the right side serves several important structural and practical functions. On one hand, it is a visible element of the styling package, and on the other, it forms the lower edge of the body, shielding the sill from dirt and minor mechanical damage resulting from daily use. Installation on the passenger side ensures visual symmetry of the M Sport set and proper fitment with factory mounting points and underbody covers.

Black Sapphire Metallic color and visual fit

The Black Sapphire Metallic finish allows for an aesthetic match to body paint with the same color code. The metallic black blends well with other M Sport package elements, such as bumpers or widened wheel arches, creating a cohesive, understated, and dynamic look for the side of the vehicle. The use of original metallic paint also facilitates potential paintwork and shade matching during local repairs.

Technical characteristics and installation

The component was designed specifically for the BMW X5 E70 in the M Sport version, taking into account the sill geometry, mounting points, and the contour of the lower body line. The right-side placement on the vehicle means the shape of the strip is tailored to that specific side, which is important for both aerodynamics and proper adhesion to the bodywork. The product has a specific weight, which is relevant when selecting the mounting method and during transport and storage in the workshop.

As an item in the Mudflaps category, the strip works with the lower body zone, limiting the direct impact of water, mud, and small stones on the sill and adjacent body parts. In practice, this translates to easier cleaning and a lower risk of corrosion in the lower part of the vehicle's side.

Condition, origin, and service application

The offered item is an original BMW part in used condition, which for many users represents a favorable compromise between quality and repair cost. Original origin means maintaining factory geometry, the correct profile, and compatibility with factory mounts in the BMW X5 E70 M Sport. This type of component is particularly useful for:

• post-accident repairs of the side body,
• restoring the completeness of the M Sport package after mechanical damage,
• replacing missing sill elements after previous modifications.

Application in workshop practice and sill zone expansion

Replacing the sill strip on the right side is a typical operation during body and paint repairs, especially when the lower part of the side body or M Sport package elements have been damaged. Using an original, used strip allows for shorter repair times, reduces the need to fit aftermarket replacements, and maintains the visual consistency of the entire sill set.

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

For users and workshops considering the use of original used parts in other vehicle systems as well, a broader look at the cost-effectiveness of such solutions may be useful – you can find more on this topic in the article Manual transmission failures – why an original used part is a more sensible choice than regeneration.