BMW F30 F31 Side Skirt M Sport Sill Strip Left N/S Estoril Blue Metallic - B45

Visual condition of the part

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

BMW F30 F31 Side Skirt M Sport Sill Strip Left N/S Estoril Blue Metallic - B45 is an original body component designed for installation on the left side of 3 Series F30/F31 models. Thanks to its factory finish in Estoril Blue Metallic - B45, it perfectly matches the M Sport styling, restoring a cohesive look to the side of the vehicle after repairs or upgrades.

Specifications and technical data

• SKU: 8056579-EB2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8056579
• Substitutable numbers: 51778056579, 8056579
• Location on the vehicle: Left
• Color: Estoril Blau Metallic - B45
• Category: Running Boards & Side Bars

Purpose and fitment for BMW F30/F31

This sill strip has been designed specifically for the BMW 3 Series F30/F31 body, intended for the left side of the vehicle. This ensures correct geometry, proper mounting points, and the preservation of factory body lines, which facilitates installation and allows for an aesthetic result without the need for additional modifications.

The component belongs to the Side skirts group, serving both a protective function for the sill area and a visual one – which is particularly important in versions equipped with the M Sport package.

Visual characteristics and Estoril Blue Metallic - B45 color

The finish in Estoril Blue Metallic - B45 is a distinctive, dynamic color often found on sport-styled BMW models. Using the original shade allows for a uniform look across the entire side of the vehicle, without the tonal differences typical of non-factory replacements.

The sill strip in this color blends particularly well with the M aerodynamic package, emphasizing the car's sporty character and ensuring consistency with other body elements painted in the same shade.

Protective function and role in body construction

The sill area is exposed to mechanical damage, dirt, and external factors. Using a dedicated sill strip allows you to:

• protect the lower part of the side body area against stone chips and minor impacts,
• limit the impact of dirt and moisture on the actual sill,
• maintain an orderly side line of the vehicle after body and paint repairs.

Thanks to a design tailored to the specific generation of the BMW 3 Series, the component works with factory mounts and other M Sport package components, which promotes stable seating on the body.

Condition of the component and use in repairs

The product is offered as a used sill strip, which is a cost-effective solution for post-accident repairs or partial body restoration, where the priority is to maintain original specifications at a reasonable cost. A used OEM component usually fits into the existing body structure better than random replacements with a universal profile.

This solution works well both when replacing a single damaged sill and when gradually rebuilding a complete set of M Sport package elements on one side of the vehicle.

Expanding the sill area in BMW – related components

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 strips, check out the available parts in the BMW side skirts category.

Technical support and knowledge about upgrades

When planning broader stylistic or technical modifications, it is worth using reliable sources of knowledge regarding component selection and the impact of changes on vehicle operation. For example, in the case of sports models and hot hatches, analyses of design evolution and spare parts selection can be useful – you can find them in the article The hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts, which shows how well-thought-out upgrades affect the character of a car.