BMW 3 F30 Roof Moulding Railing Gutter Trim Right O/S Estorilblau Blue - B45

BMW 3 F30 Roof Moulding Railing Gutter Trim Right O/S Estorilblau Blue is an original body component designed for the right side of the roof, perfect for precise replacement or aesthetic upgrades. Thanks to the factory Estoril Blau Metallic – B45 paint, the trim allows you to maintain color consistency with the rest of the bodywork and reduces the need for additional painting. It is a practical solution for BMW users who expect a good fit and compliance with factory specifications.

Specifications and technical data

• SKU: 2239973-EB
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2239973
• Substitutable numbers: 51132239973, 2239973, 7304854, BG
• Location on the vehicle: Right
• Color: Estoril Blau Metallic - B45
• Category: Other Exterior Parts & Accessories

Purpose and function of the roof trim

The roof trim mounted on the right side plays an important role in finishing the upper part of the BMW F30 series body. It is responsible for the aesthetic closure of the roof edge, helps in the proper drainage of rainwater along the body, and acts as a masking element for structural joints. A properly selected trim reduces the risk of dirt entering the gaps and improves the overall visual consistency of the vehicle.

Estoril Blau Metallic – B45 color

The factory Estoril Blau Metallic – B45 shade is a distinctive, dynamic color used in BMW models, particularly valued in versions with a sportier character. Using a trim in the same paint code allows you to:

• maintain a uniform look of the entire roof line without visible tonal differences,
• minimize the scope of any potential painting work after installation,
• preserve the original visual character of the BMW F30 body.

Installation characteristics and fitment

The roof trim is designed for installation on the right side of the vehicle, in accordance with the factory layout of the BMW F30 body. Proper profiling and shape ensure a perfect fit to the roof line and compatibility with other trim elements, such as seals or roof rails (if present in the configuration). As a result, the installation process is straightforward, and once installed, the trim creates a seamless surface with adjacent body components.

Condition of the item and practical application

The offered trim is a used component, which in practice means a beneficial combination of original origin and an attractive price compared to a new component. This type of part will work well both for standard repairs after mechanical damage or corrosion, as well as for visual refreshing of the vehicle when the existing trim is worn or deformed. Choosing an original used element allows you to maintain the factory fit and the characteristic body line of the BMW.

Integration with other BMW body elements

The roof trim in Estoril Blau Metallic – B45 blends well with other painted elements and contrasting details, such as window seals or window trims. In practice, this facilitates maintaining a consistent look for the entire upper part of the body, which is important both for post-accident repairs and for restoration projects or light styling modifications.

If you are planning a comprehensive repair or upgrade of the roof area in your BMW and need other elements from the same group, such as additional trims, covers, or edge finishes, check out the available parts in the Other BMW category.

For drivers interested in comparing the character of premium cars and the impact of body, suspension, and drivetrain design solutions on operation, an article discussing the differences between sports versions and standard models may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to better understand why original used components for premium brands such as BMW are becoming an increasingly popular choice for repairs and upgrades, it is worth reading our market analysis: Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend.