BMW F30 Roof Moulding Railing Gutter Trim Left Black Sapphire Metallic - 475

BMW F30 Roof Trim Rail Left Black 2239971 is an original body part designed for installation on the left side of the roof in F30 series models. The rail in Black Sapphire Metallic - 475 colour helps maintain paint consistency with the factory BMW palette and restores the roof's aesthetics and functionality after damage or removal. This is a practical solution for users who want to preserve the original appearance of their vehicle and the correct mounting of roof accessories.

Specifications and technical data

• SKU: 2239971-BS
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2239971
• Substitutable numbers: 51132239971, 2239971, 7290353, BG
• Location on the vehicle: Left
• Color: Black Sapphire Metallic - 475
• Category: Other Exterior Parts & Accessories

Purpose and Function of the Roof Rail

The left roof rail on the BMW F30 is responsible for the stable guidance of the mounting system for roof racks and other roof-mounted accessories. Its placement on the left side of the vehicle ensures proper alignment with factory mounting points and maintains body geometry. Thanks to this element, it is possible to safely use crossbars, roof boxes, or bike carriers in accordance with the manufacturer's specifications.

The rail in the Black Sapphire Metallic - 475 shade is colour-matched to the body paint, which reduces the need for additional painting and allows for a consistent, factory look of the roofline. This is particularly important for accident repairs or the replacement of individual body panels.

Colour and Visual Matching

The Black Sapphire Metallic - 475 finish is a distinctive metallic shade used in many BMW configurations, which complements both dark and lighter body paints well. Using the original rail colour:

• facilitates integration with the existing roof styling line,
• reduces the risk of shade differences between elements,
• allows for a consistent car appearance after repair.

As a result, the rail not only serves a functional purpose but also helps maintain the body's aesthetics at a level consistent with factory BMW standards.

Mounting Characteristics

The element is designed for installation on the left side of the vehicle, meaning its geometry, mounting points, and profile are adapted to the specific side of the roof on the BMW F30. This solution:

• facilitates correct seating of the rail in factory openings,
• ensures proper adhesion to the roof surface,
• minimizes the need for additional modifications during installation.

The rail, as a body part in the Other category, can be used for both body and paint repairs, as well as for completing missing components after the removal of roof accessories.

Condition and Practical Application

The offered rail is a used part, making it a sensible choice for repairs where the combination of functionality and cost control is key. A used original component allows for proper fitment to the BMW F30 roof and compatibility with factory mounting systems. This is a good solution for workshops specializing in the BMW brand and for individual users who want to restore full roof functionality without the need to invest in a new part.

Related Parts and Offer for BMW

If you are assembling a larger set of body parts or roof equipment for your BMW and also need other components from the same group, such as additional trims, covers, or mountings, check the available parts in the BMW Other category.

For users interested in a broader technical context and comparing design solutions in higher-class cars, an article discussing the differences in drivetrains and chassis might be useful. It is available via the link Audi RS vs. Other Models – What's Under the Hood and Chassis?, which helps to better understand manufacturers' approaches to designing key components.

If you are interested in how to practically use used body and equipment parts in cars of this brand and how to combine them with sportier versions, it is also worth reading the material BMW M Performance: What's the Difference Between BMW M and Standard Components?, which discusses, among other things, the bodywork and areas where the use of used parts has technical justification.