Mercedes W212 Window Glass Rear Right O/S Door Side Tinted Black AS3 A2127300855

The Mercedes W212 Tinted Side Door Glass Right Rear AS3 is an original part from the Automotive Glass group, designed for installation in the rear right part of the body. The tinted glass improves driving comfort, reduces interior heating, and enhances passenger privacy, while maintaining factory optical characteristics.

Specifications and technical data

• SKU: A2127300855
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2127300855
• Substitutable numbers: A2127300855, A 212 730 08 55
• Location on the vehicle: Rear, Right
• Part type: Rear Quarter Window
• Color: Black
• Category: Car Glass

Purpose and Fitment

The presented glass has been specifically designed for the rear right door wing in Mercedes W212 series models. This ensures the correct geometry, glass thickness, and compatibility with factory window channels, seals, and the power window mechanism. Consequently, installation is straightforward, without the need for modifications or adjustments.

The AS3 class tinted glass provides appropriate light transmission parameters, as required for rear side windows. This solution enhances thermal comfort in the cabin and reduces glare for passengers from the headlights of vehicles behind.

Technical Characteristics of the Glass

This glass belongs to the Automotive Glass category and is made from tempered safety glass, which shatters into small, less hazardous fragments if damaged. The tinted surface helps protect the interior from excessive solar radiation, leading to slower fading of upholstery and trim elements.

Its placement in the rear right part of the vehicle necessitates maintaining the correct curvature and edge profile for proper interaction with the door frame, guide strips, and seals. The black color applied to the frame area facilitates an aesthetically pleasing integration with factory body elements and conceals the mounting edges.

Benefits of Using an Original Side Glass

Using an original side glass for the Mercedes W212 ensures visual consistency of the bodywork and proper functional parameters. Key benefits include:

• Factory fit for the rear right side of the vehicle,
• Tinted glass that improves thermal and visual comfort,
• Safe tempered construction, reducing the risk of serious injury upon breakage,
• Aesthetic black edge finish that complements the body lines.

This type of part is particularly important after side collisions, break-ins, or mechanical damage, when replacing the glass with parameters close to the factory specifications is necessary.

Used Condition and Purchase Value

The offered glass is a used part, which significantly reduces repair costs compared to purchasing a new component, while still maintaining the original manufacturer's specifications. This solution is often chosen by workshops specializing in the Mercedes brand and by discerning users seeking a sensible compromise between price and quality.

If you want to better understand the differences between new and used parts and make informed choices about components for your car, read the article Car Parts – New or Used? Comparing Costs, Quality, and Durability, which discusses financial, operational, and availability aspects of components.

Expanding the Scope of Glass-Related Work

If you are planning a comprehensive repair or upgrade of the side glazing area in your Mercedes and require other parts from the same group, such as additional side windows, front door windows, or quarter glass, check the available parts in the Mercedes Automotive Glass category.