BMW E81 E87 E90 E92 Sliding Roof Seal Sunroof Glass Sealing Gasket Black 7157374

BMW E81 E87 E90 E92 Sliding Roof Seal Sunroof Glass Sealing Gasket is an original component from the Window seals and moldings group, designed for BMW 1 and 3 series models equipped with a sunroof. A carefully selected sealing profile and a neutral, grey color ensure an aesthetic finish for the sunroof glass edge and stable sealing of the roof structure.

Specifications and technical data

• SKU: 7157374-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7157374
• Substitutable numbers: 7157374, 54137157374
• Color: Grey
• Category: Window Seals, Gaskets & Trims

Purpose and function of the BMW sunroof seal

The sunroof seal in BMW E81, E87, E90, and E92 models is responsible for maintaining proper tightness between the sunroof panel and the roof skin. A correctly selected component limits the ingress of water, dust, and wind gusts into the cabin, and also stabilizes the position of the glass in the guides. The precise shape and fit for the specific BMW generation allow for maintaining the factory operating parameters of the sunroof mechanism.

Construction, color, and fitment

The presented seal is grey, which blends well with typical roof finishes in BMW models from this production period. The flexible sealing material allows for proper placement around the glass perimeter, and the appropriately selected profile hardness supports even pressure of the sunroof against the frame. This helps reduce noise at higher speeds and improves acoustic comfort inside the vehicle.

Benefits of using an original BMW seal

Using an original sunroof seal in BMW E81, E87, E90, and E92 allows for compliance with factory assembly tolerances. In practice, this means:

• better adhesion to the sunroof frame and glass,
• stable panel guidance during opening and closing,
• reduced risk of water leaks at critical corner points,
• more predictable mechanism behavior over a long service life. A properly selected seal is particularly important in cars used year-round, exposed to temperature changes, UV radiation, and heavy precipitation.

Condition of the component and practical application

The seal comes from disassembly, which allows for maintaining compliance with the original assembly geometry used by BMW. This type of component is particularly useful for:

• repairing sunroof leaks,
• regenerating the mechanism after flooding or guide corrosion,
• transferring a complete sunroof module between bodies. Replacing the seal is recommended when signs of fogging appear in the roof area, wind noise is heard at higher speeds, or visible mechanical damage to the old component is present.

Complementary items from the BMW seal group

If you are planning a comprehensive repair or modernization of the roof glazing area in your BMW and need other components from the same group, such as additional side window seals, trim strips, or sealing profiles, check the available parts in the BMW window seals and moldings category.

Technical support and knowledge about used parts

When working with components from the secondary market, it is worth knowing best practices for selection and technical condition verification. If you are interested in how to safely use used fuel system components and what to look for when buying parts from disassembly, check out the article Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?. For BMW users considering a broader car modernization, including selecting a powertrain based on the availability of secondary market parts, the material comparing the brand's popular diesel engines may also be helpful: BMW N47 vs M57 / M57N / M57N2 – a ranking of legendary diesels.