BMW X5 E70 Side Window Tinted Glass Door Rear Left N/S AS3 Black 7129729

BMW X5 E70 Side Window Tinted Glass Door Rear Left N/S AS3 Black is a factory-original body component designed for the rear left door section of this model. The tinted, triangular glass improves driving comfort, reduces interior heat buildup, and enhances passenger privacy. It is a practical solution for drivers seeking a visually consistent and functional addition to the side window area.

Specifications and technical data

• SKU: 7129729
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7129729
• Substitutable numbers: 7129729, 51357129729
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Car Glass

Purpose and function of the glass

The described glass is intended for installation in the rear left section of the vehicle body, within the door area, as a side triangular window. Its design supports the proper rigidity of the door frame while providing additional interior lighting without excessive sunlight penetration.

The tinting corresponds to the AS3 marking class, which in practice means increased protection against light and better thermal conditions inside the vehicle. This is particularly beneficial in SUV-class cars, where the glass surface area is larger and sun exposure is more noticeable.

Optical characteristics and color

The glass features a dark, black-toned border, allowing for an aesthetic connection with factory seals and door moldings. This color choice helps maintain a consistent side profile of the body and facilitates integration with other glazing elements.

The tinted structure improves visual comfort for passengers by reducing glare and limiting the blinding effect. At the same time, it maintains the transparency necessary for safe vehicle operation, in line with the character of side windows in modern cars.

Benefits of using the original triangular glass

Using a factory component dedicated to a specific model ensures:

• precise fitment to the door frame and seals,
• stable seating within the body structure,
• preservation of the vehicle's factory side line,
• visual consistency with other tinted windows.

The used nature of the part allows for an economical replacement of damaged glass while maintaining original manufacturing quality. It is a sensible solution for post-accident repairs or replacing glass after cracking or scratching.

Application in service practice

The rear left triangular glass is suitable both for local repair of a single element and for broader reconstruction of the side body section. Thanks to its factory origin, it facilitates the work of body shops and workshops specializing in glass replacement, reducing the time required for fitting and installation.

If you are planning a comprehensive repair or upgrade of the glazing in your BMW and want to select other elements from this group, it is worth browsing the offer in the category comparison of BMW AWD systems and other brands and the selection of appropriate components to better plan the scope of service work for the entire vehicle system.

Why choose used tinted glass

Choosing used, original glass is a way to combine reasonable costs with high quality. This type of element allows you to maintain the factory character of the interior and body without having to resort to replacements with uncertain optical parameters.

If you are considering a wider use of second-hand parts in your car, the article on how to safely select components from the secondary market may be helpful – check out the practical guide on choosing used car parts for style and savings to better plan the next stages of service.