Mercedes W221 Window Glass AS2 Rear Left Door N/S A2117350510

Mercedes W221 Window Glass AS2 Rear Left Door N/S is an original component from the Car Windows category, designed for installation in the rear left door of a luxury sedan. The product comes from a vehicle dismantling process, which ensures factory-fit precision while providing a cost-effective solution for body repairs. It is a practical choice for users who want to maintain the stylistic and functional consistency of their vehicle.

Specifications and technical data

• SKU: A2117350510
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2117350510
• Substitutable numbers: A2117350510, A 211 735 05 10
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and fitment

The offered window glass is dedicated to the rear left section of the body, ensuring a proper fit to the door structure and window guides in the Mercedes S-Class W221 generation. Using original AS2-type glass allows for maintaining the correct light transmission parameters and compliance with homologation requirements for side windows.

Thanks to the factory edge profile, the glass works seamlessly with seals, the window regulator mechanism, and the door frame, minimizing the risk of leaks and improper operation of the window lift.

Technical characteristics of AS2 glass

Glass marked with the AS2 class is designed for the side and rear glazing of a vehicle, where a balance between good visibility and protection against excessive sunlight is essential. In practice, this means:

• appropriately selected light transmission for rear side windows,
• increased resistance to mechanical damage compared to standard window glass,
• maintenance of required safety standards for rear seat passengers.

A window configured in this way supports acoustic and thermal comfort in the interior while remaining consistent with the rest of the vehicle's glazing.

Use in daily operation

Replacing the rear left side window is important not only for aesthetic reasons but also for utility. A functional component:

• ensures the proper operation of the window raising and lowering mechanism,
• limits the ingress of water and contaminants into the door interior,
• maintains the appropriate level of passive safety for rear passengers.

For Mercedes S-Class owners, maintaining a consistent look of the side body line is also important – using an original window helps maintain a uniform shade and character of the glazing, which is significant for premium segment vehicles.

Benefits of choosing used original glass

Choosing a used, original component allows you to combine cost control with the preservation of factory specifications. This type of glass:

• is already verified for fitment to a specific model and generation,
• enables installation without the need to modify mounts or guides,
• allows you to maintain the original character of the vehicle's equipment.

If you want to better understand the differences between new parts, replacements, and dismantled components, as well as their long-term cost-effectiveness, it is worth reading the article Original, replacement, or used – which car parts are the most cost-effective?, which discusses, among other things, quality issues, fitment by OEM numbers, and the economic aspect.

Support in choosing parts for Mercedes

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

More practical information about the advantages of using used, original components from dismantling for this brand's vehicles can be found in the guide Used parts for Mercedes – original parts from dismantling, which describes how to reasonably reduce service costs while maintaining a high standard of operation.