BMW F45 Rear Door Window Guide Seal Gasket Frame Sealing Left N/S 8498413

The BMW F45 Rear Left Window Guide Seal is an original body part designed for the rear left door of the 2 Series Active Tourer models. It ensures stable window guidance and a watertight seal with the door frame, which reduces noise, vibrations, and moisture ingress into the interior. Thanks to its factory-fit design, it is a solution compatible with the BMW body structure, allowing for precise replacement of a worn part.

Specifications and technical data

• SKU: 8498413-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8498413
• Substitutable numbers: 8498413, 51358498413, 7326149, 51357326149, 2571369, 51352571369
• Location on the vehicle: Rear, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and Function in the BMW F45 Body

The presented window guide seal is dedicated to the rear left side of the vehicle. This component works with the door frame, creating a guide channel for the window and sealing its perimeter around the frame. A properly fitted seal:

• stabilizes the vertical movement of the window,
• reduces air drafts at higher speeds,
• minimizes the ingress of water and dirt into the door interior,
• supports the correct operation of the window lifting mechanism.

Thanks to a design that complies with original BMW standards, replacing the part does not require modifications to the door frame or the window, which helps maintain the original body geometry.

Construction and Fit to the Door Frame

The rear left window guide seal is designed as a profile that matches the shape of the BMW F45 door frame. Appropriately shaped edges work with the door sheet metal and the window, creating a cohesive sealing and guiding system. The elastic material used ensures:

• proper pressure against the window surface,
• compensation for minor body deformations during driving,
• maintenance of a seal within typical operating temperature ranges.

This solution reduces the risk of creaks, looseness, and unwanted noises in the door area, leading to a more comfortable vehicle experience.

Benefits of Using an Original BMW Seal

Using an original window guide seal in the BMW F45 helps maintain the structural integrity of the entire door system. Key benefits include:

• Factory Fit – geometry compatible with the door frame and window, with no need for on-site adjustments.
• Consistency with other body elements – the seal works with existing trims and hardware, without disrupting the factory fit.
• Stable window mechanism operation – proper guidance reduces the load on the window lifting and lowering mechanism.
• Improved acoustic comfort – reduction of wind noise in the rear cabin.

Choosing an original part is particularly important for vehicles where maintaining BMW's characteristic body rigidity and finish quality is crucial.

Characteristics of a Used Part

The offered window guide seal is a used part from disassembly, allowing for the use of a component that meets factory specifications while maintaining reasonable repair costs. A used part enables:

• restoration of the original sealing line in the rear doors,
• maintenance of compatibility with the existing window and lifting mechanism,
• minimizing interference with the door structure to the necessary extent.

This solution is particularly beneficial for post-accident repairs or when replacing worn parts in older BMW F45 models, where a balance between quality and service cost is important.

BMW Window Seals and Trims – Expanding the Door Area

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other parts from the same group, such as additional window seals, window trims, or frame finishing elements, check the available parts in the BMW Window Seals and Trims category.

For drivers interested in the broader context of using original, used components in premium cars, it is worth reading an article describing the impact of such parts on maintaining the brand's character – you can find it here: Audi and Pure Emotion – How Used Parts Help Maintain Brand DNA.