Mercedes CLS W219 Window Glass Rear Left Door N/S Quarter Side AS2 A2197300955

Mercedes CLS W219 Window Glass Rear Left Door N/S Quarter Side AS2 is a factory-made glazing element designed for the rear part of the left door in the CLS W219 body style. The fixed quarter glass stabilizes the door frame structure, improves the lateral rigidity of the body, and ensures a consistent, elegant look of the side profile characteristic of premium Mercedes-Benz vehicles. This solution is dedicated to users who expect precise fitment and the preservation of the vehicle's original styling.

Specifications and technical data

• SKU: A2197301555
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2197301555
• Substitutable numbers: A2197301555, A 219 730 15 55, A2197300955, A 219 730 09 55
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and function of the component

The described fixed glass is mounted in the rear part of the left door, in the quarter section, between the pillar and the roll-down window. Its functions include:

• sealing the side part of the body in the rear door area,
• maintaining the proper rigidity of the door frame,
• ensuring proper side visibility for passengers,
• preserving the original glazing line characteristic of the CLS W219.

Thanks to its fixed mounting, the glass does not operate within the lifting mechanism, which reduces the load on the moving parts of the system and promotes the stability of the entire door structure.

Benefits of using the original fixed glass

Using a dedicated quarter glass in the rear left part of the body allows for maintaining the vehicle's factory parameters. The appropriate edge geometry, correct bending radius, and fitment to seals and trim strips ensure that installation is predictable and that the door system's seal is maintained after mounting.

In practice, this means:

• proper adhesion to factory seals,
• reduced risk of wind noise at higher speeds,
• visually consistent appearance of the side body section,
• easier service work during any potential door adjustments.

For owners of Mercedes vehicles, maintaining the car's original character is essential – a properly selected fixed glass in the rear left part of the body supports this goal without the need for interference with the door structure.

Installation characteristics and fitment

The element is designed for installation in a specific body model, in a strictly defined location on the vehicle – the rear, left part of the door. Such specialization facilitates workshop work because:

• there is no need to modify the door frame or mounting points,
• compatibility with factory trim strips and seals is maintained,
• installation time can be optimized thanks to predictable fitment.

The fixed quarter glass is particularly important during post-accident repairs and when replacing damaged glazing elements, when the goal is to restore the original geometry and aesthetics of the side body section.

Condition of the part and practical application

The offered item comes from the used parts segment, which in many cases allows for a significant reduction in repair costs while maintaining the factory origin of the component. This solution is often chosen by workshops specializing in the Mercedes brand and by conscious users who want to combine a reasonable budget with maintaining the vehicle's original specifications.

If you are considering whether a new, replacement, or used part is a better choice in your case, it is worth checking the guide Original, replacement, or used – which car parts are the most cost-effective?, where you will find a comparison of costs, quality, and fitment based on identification numbers.

Part selection and related components

To ensure full visual and technical consistency, when replacing the quarter glass in the rear left door, it is worth paying attention to the condition of adjacent elements – seals, trim strips, and the roll-down window mechanism. A comprehensive approach to repairs reduces the risk of subsequent leaks and accelerated wear of moving parts.

If you are planning further work on the vehicle's glazing elements, also check other products in the category Mercedes car glass – how to consciously choose used and replacement parts, to better plan the scope of service and select components according to the manufacturer's requirements.