Audi A8L 4H Front Door Window Glass Left N/S AS2 4H0845021E

Audi A8L 4H Front Door Window Glass Left N/S is an original component from the Car windows group, designed for installation on the left side of the front body section in the Audi A8L 4H generation model. This used OEM glass ensures a proper fit to the door frame, correct operation of the lifting mechanism, and the maintenance of factory visibility and driving comfort parameters.

Specifications and technical data

• SKU: 4H0845021E
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0845021E
• Substitutable numbers: 4H0845021E, 4H0 845 021 E, 4H0845021A, 4H0 845 021 A
• Location on the vehicle: Front, Left
• Category: Car Glass

Purpose and fitment

The presented glass is designed specifically for the luxury Audi A8L 4H series sedan and is installed in the front – left side of the vehicle area. Thanks to its factory geometry and properly profiled edge, it works in harmony with door seals and guides, which reduces wind noise and helps maintain cabin airtightness.

The AS2 marking indicates the use of glass with parameters compliant with regulations for side windows, which translates into safe light transmission and comfortable glare protection during daily use.

Technical characteristics of the side window

The front left side window in the Audi A8L 4H is a structural body component that works with the lifting mechanism, exterior mirror, and door seals. The appropriate thickness and type of glass ensure:

• stable operation in the guides during opening and closing,
• adequate rigidity while maintaining proper transparency,
• compatibility with the vehicle's factory acoustic solutions.

By maintaining the original installation specification, the glass integrates with existing door components, which facilitates service work and reduces the risk of additional adjustments.

Benefits of using original Audi glass

Using an original side window in the Audi A8L 4H allows for maintaining the visual consistency of the body and the performance parameters intended by the manufacturer. Key advantages include:

• Factory fitment – maintaining the correct body line and door seal without the need for modifications.
• Optical consistency – uniform glass tint relative to other windows in the vehicle, which affects aesthetics and driving comfort.
• Operational safety – glass meeting the requirements for side windows, supporting the protection of the driver and passengers.

The used OEM component is a good solution for post-accident repairs or replacing damaged glass when you want to maintain the original specification at reasonable service costs.

Condition and service application

The glass comes from dismantling and has the status of a used component, which is important when planning a repair budget. This type of element will work well both for local repair of a single door and for broader bodywork and paint jobs in the front, left part of the body.

Before installation, it is recommended to perform a standard inspection of the glass surface and prepare the guides and seals to ensure smooth operation of the lifting mechanism and reduce the risk of unwanted noises during operation.

Complementary Audi car windows and service knowledge

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

To better plan your purchases and optimally select used components, it is worth learning the principles of sourcing parts in one place and the differences between originals and cheap replacements – you will find practical tips in the article Comprehensive supply: from the engine to the smallest clip – how to source used car parts in one place?.