BMW F30 Roof Moulding Railing Gutter Trim Left N/S Mineralgrau Grey Metallic B39

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW F30 Roof Moulding Railing Gutter Trim Left N/S Mineralgrau Grey Metallic B39 in Mineral Grau Metallic – B39 is an original body component designed for installation on the left side of the roof. It is a precisely fitted component that allows for an aesthetic and technically correct restoration of the roof line in your BMW, maintaining color consistency and the factory character of the vehicle.

Specifications and technical data

• SKU: 2239971-MG
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2239973
• Substitutable numbers: 51132239973, 2239973, 7290354, KZ
• Location on the vehicle: Left
• Color: Mineral Grau Metallic - B39
• Category: Other Exterior Parts & Accessories

Purpose and function of the roof trim

The presented roof trim is dedicated to the BMW F30 series and is mounted on the left side of the vehicle. It is responsible for finishing the roof edge, ensuring the correct body line, and preparing the space for the potential installation of roof rails or roof accessories compatible with the design of this model.

Thanks to the factory profile, the element ensures:

• precise fit to the roof panel,
• stable mounting in the original mounting points,
• visually consistent roof edge line on the driver's side.

Color and visual fit

The trim is finished in the Mineral Grau Metallic – B39 shade, which allows for a uniform body appearance in cars painted in this color. The metallic paint coating is matched to the BMW factory standard, ensuring the element blends harmoniously with other body panels without any color mismatch.

Such a fit is particularly important for:

• professional post-accident repairs,
• precise body restoration,
• maintaining the original look of the car to OEM standards.

Technical characteristics and installation

The roof trim has been designed as an element intended for a specific BMW model, taking into account the roof geometry and factory mounting points. As a result, the installation process is straightforward, without the need for modifications or reshaping.

In practice, this means that:

• the trim profile matches the factory bends and radii of the roof,
• the placement of the mounts is consistent with the original design,
• after installation, the continuity of the body line on the left side of the vehicle is maintained.

The element comes from disassembly, which allows for maintaining the manufacturer's original specifications and fitment to the BMW F30 body system.

Application in BMW F30 repairs and restorations

The BMW F30 Roof Moulding Railing Gutter Trim Left N/S Mineralgrau Grey Metallic B39 will work well both for replacing a damaged element and for comprehensive roof reconstruction after body and paint repairs. Using an original trim allows you to reduce the risk of fitment issues, leaks, or incorrect roof edge alignment.

This solution is highly recommended for workshops specializing in the BMW brand and users who want to maintain the factory finish standard of the bodywork, without compromising on fit and appearance.

Configuration expansion and selection of other elements

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.

To compare technical solutions used in sports versions of other brands, including differences in body construction, chassis systems, and accompanying components, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how premium manufacturers design key car elements depending on the model version.