BMW X3 E83 Roof Moulding Left N/S Trim Strip Montegoblau Blue Metallic - A51

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X3 E83 Roof Moulding Left N/S Trim Strip Montegoblau Blue Metallic - A51 is an original body component designed for installation on the left side of the roof in the BMW X3 E83 model. Finished in Montegoblau Metallic - A51, this trim strip helps maintain the visual consistency of the bodywork and the factory character of the vehicle. This used OEM part is an excellent choice for accident repairs, visual roof restoration, or returning the car to a factory-like condition.

Specifications and technical data

• SKU: 0304929-MTB1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0304929
• Substitutable numbers: 51130304929, 0304929, 3403335, BG
• Location on the vehicle: Left
• Color: Montegoblau Metallic - A51
• Category: Other Exterior Parts & Accessories

Purpose and function of the roof moulding

The presented left roof moulding has been designed specifically for the BMW X3 E83 body, taking into account the roof geometry and factory mounting points. The element serves as a finishing and protective component in the roof edge area, influencing aesthetics, aerodynamics, and the tightness of the joints between the roof and other body panels.

Thanks to its precise profile, the moulding fits the roof line, which facilitates installation and reduces the risk of stress on the bodywork. The original OEM construction ensures compatibility with factory clips and seals, without the need for modifications.

Montegoblau Metallic - A51 color and visual fit

The Montegoblau Metallic - A51 color is a characteristic metallic shade of blue used by BMW, which effectively highlights the body lines of the X3 E83. Using a moulding in the same paint code allows you to limit the scope of paint work or skip it entirely if the condition of the coating is suitable for further use.

Choosing a component in the identical factory color:

• makes it easier to maintain a uniform color of the roof and pillars,
• minimizes shade differences between adjacent panels,
• speeds up the visual body repair process.

Placement on the vehicle and installation aspects

The moulding is intended for installation on the left side of the roof, which is important when selecting parts relative to the right side of the vehicle. The component's design is profiled for a specific side, so using the correct moulding eliminates the problem of shape and mounting point mismatch.

During installation, it is worth paying attention to:

• proper seating in the factory guides and clips,
• the condition of seals and accompanying elements in the roof area,
• even pressure along the entire length to maintain a proper seal.

A used roof moulding is a good solution when replacing a damaged or deformed element, especially when you want to maintain factory geometry at a reasonable repair cost.

Application in repairs and restoration of the BMW X3 E83

This component will work well both for local post-collision repairs and for comprehensive body restoration of the BMW X3 E83. Replacing the roof moulding is not only aesthetically important but also practical – it improves the protection of the roof edge against external factors and helps maintain proper water drainage from the body surface.

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

Technical support and component knowledge

When selecting body components and analyzing differences between equipment versions, knowledge of the specifics of the brand's sports variants can be helpful. In this context, it is worth reading the material describing the characteristics of BMW M and M Performance components – bodywork, suspension, or braking systems. Detailed information can be found in the article BMW M Performance: how do BMW M components differ from standard ones?, which helps to better understand where used BMW parts make the most sense.

For a comparison of the design philosophy of sports versions from other brands, you can also reach for an analysis of RS models, their engines, brakes, and chassis – you will find it in the article Audi RS vs other models – what is hidden under the hood and chassis?, which allows you to better assess the importance of individual body and mechanical components in premium class cars.