BMW 3 Series E90 Sliding Sunroof Sun Roof Frame Complete Glass Grey Roller

BMW 3 Series E90 Sliding Sunroof Sun Roof Frame Complete Glass Grey Roller is an original body component designed for the 3 Series E90 models, allowing for professional replacement of a damaged sliding roof module. This used component in grey ensures a consistent look with the factory vehicle configuration and allows for maintaining the proper structural rigidity of the roof. It is a solution for users who expect factory fitment and correct operation of the sunroof mechanism without the costly adaptation of aftermarket replacements.

Specifications and technical data

• SKU: 7157447
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7157447
• Substitutable numbers: 54137145920, 7145920, 54107157447, 7157447, BG
• Color: Grey
• Category: Other Exterior Parts & Accessories

Purpose and function of the component

The sunroof in the BMW E90 is responsible for cabin illumination, additional ventilation, and acoustic comfort while maintaining proper body sealing. Replacing the complete roof with a sunroof is recommended in cases of mechanical damage to the guides, deformation of the panel, or closing issues, where spot repair is uneconomical or technically difficult.

The original construction ensures:

• correct guidance of the sunroof panel throughout its entire range of operation,
• proper adhesion to seals and the roof frame,
• preservation of body geometry in the roof area.

Visual parameters and fitment

The presented component features a grey color, which facilitates integration with the factory palette of paints and finishes used in the BMW E90. In the case of body and paint work, the grey shade provides a favorable base for further color matching to the specific body paint.

Thanks to the preservation of the original roof geometry, it is possible to achieve:

• precise alignment with the windshield frame and the rear part of the roof,
• correct setting of gaps between the sunroof panel and the bodywork,
• reduction of the risk of wind noise at higher speeds.

Condition and service application

The component comes from disassembly and is offered as a used part, which represents a reasonable compromise between repair costs and maintaining original BMW quality. This type of solution is often chosen by workshops specializing in the brand when quick restoration of full sunroof functionality is required while simultaneously limiting material costs.

In assembly practice, the BMW 3 Series E90 Sliding Sunroof Sun Roof Frame Complete Glass Grey Roller will prove particularly useful in situations where:

• mechanical damage to the roof structure has occurred as a result of a collision,
• the sunroof guides or frame are deformed,
• it is necessary to replace the complete module instead of time-consuming regeneration.

Integration with other BMW components

Choosing an original roof with a sunroof for a BMW allows for maintaining consistency with other body components and the vehicle's installation. This makes it possible to maintain proper cooperation with factory seals, the headliner, and water drainage elements from the sunroof cassette, which is important for durability and comfort of use.

If you are planning a comprehensive repair or modernization of the body zone in your BMW and need other elements from the same group, such as roof panels, reinforcements, or additional equipment modules, check the available parts in the Other BMW category.

Technical support and knowledge about sports constructions

When planning body and roof repairs, it is worth knowing the structural differences between standard and sports versions, especially in the context of body rigidity, suspension performance, and the braking system. To expand your knowledge about solutions used in high-performance cars, you can read the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, differences in engines, brakes, and chassis, and shows how the selection of appropriate parts affects the character of the car.