Audi R8 Gen 1 Door Window Glass Glazing Green AS2 Right O/S 420845201A

Audi R8 Gen 1 Door Window Glass Glazing Green AS2 Right O/S is an original component from the Car Windows category, designed for installation on the driver or passenger side depending on the market, in accordance with the manufacturer's specifications. The green AS2-rated glass provides appropriate light transmission while improving thermal and visual comfort inside the Audi R8 sports car.

Specifications and technical data

• SKU: 420845201A
• Mark: Audi
• Condition: Used
• OEM Part Number: 420845201A
• Substitutable numbers: 420845201A, 420 845 201 A
• Location on the vehicle: Right
• Part type: Front Side Window
• Color: Green
• Category: Car Glass

Purpose and fitment for Audi R8 Gen 1

The presented side window has been designed specifically for the first generation of the Audi R8, taking into account the characteristic door construction of this model. Proper edge profiling and the correct bending radius allow for seamless integration with the window regulator mechanism, seals, and door frame, which translates into stable operation and reduced noise while driving.

The AS2 marking confirms that the glass meets safety and light transmission requirements for side windows, which is important from both a regulatory and user comfort perspective. As a result, the window maintains the right balance between visibility and protection against excessive sunlight.

Glass characteristics and color

The glass used in a green tint is a typical solution employed by the manufacturer in premium models such as the Audi R8. The subtle tint limits interior heating, improves visual comfort for the driver and passenger, and helps reduce light reflections on mirrors and cockpit elements.

Uniform glass color is essential when replacing a single component – it allows for maintaining a consistent look for the vehicle's entire glazing. Proper color matching is not only aesthetically important but also practical, as it influences even light distribution within the cabin.

Vehicle placement and installation aspects

The window is intended for installation on the right side of the vehicle, which is crucial when selecting parts for a specific body version. The appropriate shaping of the mounting edges and technological holes (if present) enables correct seating in the guides and cooperation with the factory lifting mechanism.

During installation, it is recommended to use original or quality-equivalent fasteners and seals to maintain door tightness, proper water drainage, and minimal wind noise at higher speeds. A correctly selected side window has a direct impact on the acoustic and functional comfort of the vehicle.

Used condition – technical and economic benefits

This item comes from the secondary market, which allows for a significant reduction in repair costs compared to a brand-new window, while maintaining the original manufacturer's specifications. For windows in sports models like the Audi R8, choosing a used part is often an optimal compromise between quality and budget, especially for accident repairs or restoration projects.

A used door window retains its basic operational properties, such as rigidity, clarity, and resistance to typical operational loads, provided it is installed correctly and appropriate sealing materials are used.

Expert support and related content

If you want to better understand how to wisely choose secondary market components and what to look for when purchasing used parts for premium cars, check out our guide: Used parts – Your guide to the best deals in our automotive store. You will find practical tips there that will help you make informed choices regarding windows and other body components.

During the summer, it is particularly important to maintain a stable temperature inside the vehicle – this is influenced not only by the windows but also by the cooling system. To learn how high temperatures affect the engine and how to wisely use used cooling components, read the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

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