Mercedes S Long W221 Rear Right O/S Side Window Glass Green AS2

The Mercedes W221 Rear Right Door Window AS2 is a factory body part from the car glass category, designed for installation on the right rear side of the vehicle. Its original origin ensures a perfect fit to the car body, and the window's green tint enhances driving comfort by reducing interior heating and glare.

Specifications and technical data

• SKU: A2217302818
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217302818
• Substitutable numbers: A2217302818, A 221 730 28 18, KZ
• Location on the vehicle: Rear, Right
• Color: Green
• Category: Car Glass

Intended Use and Fitment for Mercedes W221

This window is specifically designed for the rear right door panel of the Mercedes S-Class W221 generation. Its placement on the rear passenger side guarantees compatibility with the factory door construction, seal lines, and the window regulator mechanism. This ensures the vehicle's body remains sealed, the lowering and raising mechanism functions correctly, and the vehicle's side profile maintains its aesthetic appeal.

Technical Specifications and Performance Features

The window is designated as AS2 type, indicating tempered glass with appropriate strength and light transmission parameters, compliant with side window requirements. The green hue of the glass improves thermal comfort inside the cabin by reducing the amount of solar energy penetrating the interior, while still maintaining good visibility and clarity of the surroundings.

The original construction ensures:

• correct fit with the door frame and seals,
• proper cooperation with the factory window regulator,
• maintenance of factory rigidity and side safety.

Item Condition and Benefits of Choosing a Used Window

This window is a used part, which significantly reduces repair costs while maintaining original quality. Unlike many aftermarket replacements, a part sourced from a dismantled vehicle of the same make and generation retains dimensional accuracy, the correct edge profile, and factory homologation markings. This is a practical solution for collision repairs, or replacements due to cracks or mechanical damage.

Choosing an original, used window is particularly beneficial for premium vehicles where visual consistency, glass quality, and fit with existing body parts are crucial.

Safety, Comfort, and Servicing Aspects

Tempered side glass in AS2 standard is designed to shatter into small fragments upon impact, minimizing the risk of serious injury. The applied green tint aids in protection against solar radiation, which is important for both passenger comfort and protecting upholstery and interior components from fading.

During installation, it is recommended to use a workshop experienced in automotive glass work to ensure proper sealing, prevent stress on the glass, and maintain the correct operation of the window regulator. Correct installation directly impacts the window's durability and prevents unwanted noises such as creaks or squeaks while driving.

How to Consciously Choose an Original, Used Window

If you are considering whether to opt for an original part, an aftermarket replacement, or a dismantled item, a guide detailing the differences in cost, quality, and fitment by OEM numbers will be helpful – details can be found in the article Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?.

To better understand the significance of OEM markings and the benefits of choosing used original body parts, it is also worth reading the material OEM Quality and Safety Guarantee – Why Used Original Car Parts Are the Best Choice for Your Car?, which discusses, among other things, the safety and cost-effectiveness aspects of such solutions.

If you also need other glass components for your Mercedes during repairs, such as side door windows, quarter glass, or other body glass formats, check the available parts in the category Mercedes Car Glass.