BMW G20 Rear Window Glass Glazing Left N/S Tinted AS3 9449816

BMW G20 Rear Window Glass Glazing Left N/S Tinted AS3 is an original component from the Car Windows group, designed for installation in the rear part of the body on the driver's side. The AS3 tinted glass improves driving comfort, reduces interior heating, and increases passenger privacy, while maintaining factory geometry and fitment to the BMW bodywork.

Specifications and technical data

• SKU: 9449816
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9449816
• Substitutable numbers: 9449816, 51359449816
• Location on the vehicle: Rear, Left
• Part type: Rear Side Window
• Category: Car Glass

Purpose and vehicle placement

The offered window is designed for installation in the rear part of the body on the left side, in the side passenger area. This placement is crucial for:

• lateral body rigidity in the area of the pillars and window frame,
• proper guidance of seals and window lifting mechanisms,
• maintaining the factory side line characteristic of the BMW G20 series.

By maintaining the original curvature and dimensions, the window works with factory guides, seals, and trim strips, which facilitates installation and reduces the risk of leaks.

Characteristics of AS3 tinted glass

AS3 class tinted glass is a solution used in the rear area of the vehicle, where comfort and protection against solar radiation are a priority. This type of window:

• reduces the amount of light entering the cabin, improving visual comfort for passengers,
• limits interior heating, which reduces the load on the air conditioning system,
• increases the level of privacy in the rear part of the vehicle,
• maintains compliance with safety standards for windows installed in the rear zone.

Original BMW glass ensures a consistent tint shade with the other windows of the vehicle, which is important for both aesthetic and functional reasons.

Benefits of using original BMW glass

Using an original rear left side window in a BMW G20 allows you to maintain factory body parameters and high operating standards for moving parts in the door. The most important advantages include:

• Factory fitment – compatibility with the body line, seals, and door frame minimizes the risk of wind noise and leaks.
• Consistent optics – no image distortion and a uniform level of tint compared to other windows.
• Equipment compatibility – proper cooperation with standard window lifting mechanisms and door trim elements.

This dismantled part is a sensible choice for users who want to restore full functionality and aesthetics to the side of the body while maintaining a favorable cost-to-quality ratio.

Condition, verification, and use in body and glass repairs

The product comes from a used vehicle, which allows for economical repair of damage in the rear left window area without the need for more expensive replacements. This type of window is particularly suitable for:

• repairs after side collisions in the area of the rear door or body quarter panel,
• replacing damaged glass after breakage or cracking,
• restoring the original appearance of the car after unprofessional window modifications.

Selecting an original element from the same model generation allows you to maintain visual and technical consistency with the rest of the body, which is important for both daily operation and potential resale of the vehicle.

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

More about used body parts

When selecting windows and other body parts from dismantling, it is worth paying attention to their origin and compatibility with a specific model generation. Well-chosen body and glass parts can significantly reduce repair costs while maintaining high manufacturing quality and aesthetics. You can find more practical information on using used body parts in the article Replacing body parts with used ones – can dismantled body parts look like new?, which will help you consciously plan the repair of your BMW.