BMW F21 Side Window Glass Glazing Fixed Rear Left N/S Window AS3 Tinted

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F21 Side Window Glass Glazing Fixed Rear Left N/S Window AS3 Tinted is a factory-fitted body component designed for installation in the rear left section of the vehicle. The AS3 standard tinted glass provides increased optical comfort, improves interior heat protection, and enhances the aesthetics of the car's side profile. This is a solution for users who expect a consistent look, precise glass geometry, and secure seating in the original mounting points.

Specifications and technical data

• SKU: 7290537-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7290537
• Substitutable numbers: 7290537, 51377290537
• Location on the vehicle: Rear, Left
• Category: Car Glass

Technical characteristics of the BMW F21 side window

The presented glass belongs to the Car windows category and has been designed specifically for the BMW F21 series body. The fixed construction of the rear side window eliminates the need for lifting mechanisms, which translates into stable seating in the body frame and resistance to deformation during use. The AS3 tinted glass limits light and radiation penetration, improving travel comfort for rear-seat passengers and reducing the risk of upholstery fading.

The placement on the vehicle in the rear left section of the body means that the glass is profiled in accordance with the F21 side body line, which facilitates correct installation in the original seal and trim strips. This maintains the continuity of the side line, and the tightness of the connection with the bodywork minimizes the risk of water and noise entering the interior.

Function and application in the bodywork

The fixed rear side window performs several important structural and functional roles:

• it stabilizes the rear pillar and side frame area, working in conjunction with seals and trim strips,
• it provides additional protection for the interior against weather conditions,
• it influences cabin acoustics by limiting the penetration of outside noise,
• it shapes the side visibility for passengers and the characteristic body line of the BMW F21.

AS3 tinted glass is particularly beneficial in cars used in urban and highway conditions, where sun exposure is high. Reducing light transmittance improves thermal comfort while maintaining clear visibility from the inside out. This technical solution is often chosen by users who want to combine functionality with a more discreet look for the rear of the vehicle.

Component condition and installation aspects

The offered glass is a used component, which in practice means a favorable compromise between the purchase cost and maintaining the original geometry and fit to the BMW body. In the case of fixed side windows, it is crucial that the glass surface and mounting edges allow for correct seating in the frame and compatibility with factory seals. Choosing an original glass from dismantling reduces the risk of fitment issues that may occur with replacements having different dimensional tolerances.

During installation, it is important to follow the proper bonding or seating procedure in the seal, in accordance with the body manufacturer's technology. A correctly installed rear left side window maintains system tightness, does not cause stress in the bodywork, and does not generate additional air noise at higher speeds. This is especially important in BMW-class cars, where consistent performance of all body components is expected.

Benefits of using original tinted glass

Using an original, tinted side window in a BMW F21 brings a number of practical benefits:

• preservation of the factory look of the side body section and compatibility with other windows,
• consistent optical characteristics – uniform tint level across the entire set of windows,
• proper cooperation with seals and strips, which limits the risk of leaks,
• possibility of economical repair of body damage while maintaining BMW brand standards.

For users who consciously choose parts from the secondary market, it is also important that the original glass from dismantling retains the structural parameters intended by the vehicle manufacturer. Thanks to this, there is no need to modify mounting points or interfere with the body structure, which is particularly important in the case of glass elements.

More windows for BMW and a guide to used parts

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 windshields, door windows, or additional rear windows, check the available parts in the BMW car windows category.

If you want to better understand how to consciously choose elements from the secondary market and what to pay attention to when buying windows and other body components, read the article: Used parts – Your guide to the best offers in the automotive store. This will make it easier for you to assess when choosing a used side window is technically justified and economically profitable.