Audi A4 B9 Rear Quarter Side Window Glass Left N/S Tinted AS3 8W5845297E

Audi A4 B9 Rear Quarter Side Window Glass Left N/S Tinted AS3 is an original component from the Car windows group, designed for installation on the left side of the rear bodywork. Thanks to the factory AS3 tinting, it provides more comfortable interior conditions, improving sun protection and increasing passenger privacy.

Specifications and technical data

• SKU: 8W5845297E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5845297E
• Substitutable numbers: 8W5845297E, 8W5 845 297 E
• Location on the vehicle: Rear, Left
• Part type: Rear Quarter Window
• Category: Car Glass

Purpose and fitment for Audi A4 B9

The presented window has been designed specifically as a rear side window for the left side of the Audi A4 B9 generation body. This ensures proper edge profiling, the correct bending radius, and a perfect fit with factory seals and moldings, which facilitates installation and helps maintain the consistent look of the side body line.

Thanks to a design consistent with solutions used by Audi, the component integrates with the bodywork without the need for modifications, and when installed correctly, it maintains tightness and stability during vehicle operation.

AS3 glass characteristics and tinting function

Glass marked with the AS3 class is a window with an increased level of tinting, used in the rear zone of the vehicle. This type of solution:

• limits interior heating by reducing the amount of sunlight reaching the cabin,
• increases travel comfort for rear-seat passengers, especially during long journeys,
• improves privacy, making it difficult to see into the vehicle interior from the outside,
• supports body aesthetics, giving it a consistent, modern look.

The tinted rear side window is particularly beneficial in cars used intensively in city traffic and on routes where sun exposure is high. Factory tinting eliminates the need for additional films, which can peel or become dull over time.

Used condition and benefits of choosing original glass

The component comes from the secondary market, which allows for a significant reduction in repair costs compared to purchasing new glass while maintaining the manufacturer's original specifications. Choosing original glass from dismantling is a solution that:

• ensures compliance with factory vehicle parameters,
• facilitates installation thanks to the correct shape and thickness of the glass,
• allows for maintaining a consistent look with the other windows in the car.

For many Audi A4 B9 users, this is a reasonable compromise between quality and repair cost, especially in the case of mechanical damage or cracks resulting from a collision.

Safety, comfort, and application in the rear zone of the vehicle

As a component of the rear bodywork on the left side, the window affects passive safety and acoustic comfort inside. A properly selected and installed window:

• maintains the rigidity of the side bodywork within the range intended by the manufacturer,
• limits wind noise and external noise,
• ensures proper side visibility for rear-seat passengers.

Replacing a damaged window with an original component with the correct placement in the vehicle allows for restoring full functionality of the rear cabin area and maintaining the aesthetics of the Audi A4 B9 side line.

Complementary Audi car windows and service tips

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

Before installation, it is worth consulting an experienced body shop or a facility specializing in window replacement to maintain body tightness and avoid stress in the glass. It is also good practice to check the condition of seals and mounting strips, which helps reduce the risk of later rattles and leaks.

How to plan repairs and optimize costs

When replacing windows and other body components, it is worth planning the work to limit the number of workshop visits and combine several service activities in one appointment. Practical tips regarding vehicle operation and repair, which you will find in the article TOP 10 most frequently replaced parts in your car, can be helpful. Thanks to them, you will more easily plan your service budget and choose optimal solutions between new and used parts.

If you are considering a wider use of secondary market components, information on the real durability and cost-effectiveness of such solutions, available in the guide Used car parts: Myths and facts you must know, may also be useful. This will allow you to consciously decide when choosing used glass is technically and economically justified.