BMW G20 Rear Window Glass Glazing AS3 Left N/S 9449815

BMW G20 Rear Window Glass Glazing AS3 Left N/S is an original body glazing component from the Car windows group, designed for installation in the rear part of the vehicle on the driver's side. The element ensures proper glazing geometry, stable seating in the body frame, and maintenance of the factory side line, which is important for both the safety and aesthetics of the car.

Specifications and technical data

• SKU: 9449815
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9449815
• Substitutable numbers: 9449815, 51359449815
• Location on the vehicle: Rear, Left
• Part type: Front Side Window
• Category: Car Glass

Purpose and vehicle placement

The offered glass is dedicated to installation in the rear part of the body on the left side, in the side zone of the passenger cabin. Such placement affects:

• proper illumination of the rear interior,
• maintenance of the structural rigidity of the side body section,
• preservation of the factory aerodynamics and styling line of the BMW G20 series.

Thanks to precise fitting to the specific body version, the glass works with factory seals, trims, and mounts, which facilitates installation and reduces the risk of leaks.

Technical and functional characteristics

As an original BMW glazing element, the rear left glass has been designed to maintain appropriate strength and performance parameters. The construction meets the requirements for side windows in modern vehicles, ensuring:

• adequate resistance to stresses resulting from bodywork operation,
• proper cooperation with the door frame or fixed side panel,
• stable seating in the mounting system and guides.

Selecting glass that complies with the factory specification is important for the proper operation of body systems, such as seals, finishing elements, or any additional accessories mounted within the rear side body area.

Benefits of using original BMW glass

Using original glazing in the BMW G20 allows for maintaining the technical and visual consistency of the vehicle. Key advantages include:

• Factory fit – the glass has been designed for a specific body geometry, which minimizes the risk of installation problems.
• Visual consistency – the glass shade and edge shape are consistent with the other windows in the vehicle, which helps avoid differences in the appearance of the side body section.
• Operational safety – using an element consistent with the manufacturer's design helps maintain the passenger protection parameters intended by BMW.

Choosing an original glass from the Car windows group is particularly important for post-accident repairs, where the precision of recreating the factory construction counts.

Condition and use in repairs

The element comes from a used vehicle, which allows for an economical restoration of the glazing while maintaining the original BMW specification. This type of glass will work well in:

• post-accident repairs of the rear left body section,
• replacing damaged or cracked glazing,
• restoring the completeness of glazing in renovation projects.

Selecting the right glass for the specific G20 body version is crucial for proper installation and subsequent vehicle operation.

If you are planning a comprehensive repair or upgrade of the side glazing zone in your BMW and need other elements from the same group, such as rear side windows, side door windows, or additional body glazing, check the available parts in the BMW car windows category.

Support in sourcing used parts

When selecting the rear left glass for the BMW G20, it is worth paying attention to the consistency of the entire set of body elements and other components from the secondary market. To better plan your purchases and avoid accidentally combining unsuitable replacements, check out the guide describing the strategy for sourcing used body and mechanical elements – it is discussed in detail in the article "Comprehensive supply: From the engine to the smallest clip – how to source used car parts in one place?".