Mercedes S212 W212 Glass Window Front Door Left N/S Glazing AS2 A2127250710

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes S212 W212 Glass Window Front Door Left N/S Glazing is an original side window from the Car windows category, designed for installation in the front left door of Mercedes vehicles. The AS2 type construction ensures the appropriate level of light transmission and comfortable visibility, while maintaining factory safety standards and body aesthetics.

Specifications and technical data

• SKU: A2127250710
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2127250710
• Substitutable numbers: A2127250710, A 212 725 07 10
• Location on the vehicle: Front, Left
• Category: Car Glass

Purpose and body fitment

The presented window has been designed specifically for installation in the front left door, which guarantees proper alignment in the guides, correct operation with the lifting mechanism, and a tight fit against the seals. Thanks to the preservation of the original edge geometry and the appropriate profile, the component allows for seamless integration with the factory door frame and side mirror.

The AS2 type indicates a window with controlled light transmission, adapted to the homologation requirements for side windows, which translates into driving comfort during the day and at night, as well as the correct operation of mirrors and driver assistance systems.

Technical characteristics of the AS2 window

The window belongs to the Car windows group, which means it uses laminated or tempered automotive glass with increased resistance to operational loads. The AS2 glass structure is designed to limit the risk of sharp shards in the event of damage, thereby increasing the safety of vehicle occupants.

Precise edge finishing and the appropriate glass thickness promote stable operation in the guides, reduce cabin noise, and support proper sealing of the interior against water and wind gusts. As a result, acoustic and thermal comfort is maintained, which is particularly important at higher speeds.

Application in Mercedes vehicles

The window in question is a component dedicated to the S212 and W212 series Mercedes bodies, which allows for maintaining stylistic and technical consistency with the other windows in the vehicle. Using an original door window facilitates installation, minimizes the need for additional adjustments, and supports the correct operation of factory seals and lifting mechanisms.

Choosing a component from the same design family as the other glazing elements helps maintain an even level of tint and a uniform glass shade, which is important both visually and functionally for the driver and passengers.

Benefits of installing an original door window

Using a dedicated front left door window allows you to:

• maintain factory visibility parameters and optical comfort,
• ensure proper cooperation with the window lifting mechanism,
• maintain door tightness and reduce cabin noise,
• maintain a consistent appearance of the side of the body.

For Mercedes vehicles, choosing the right side window is important not only for aesthetic reasons but also for utility – it affects the ergonomics of using the door, the durability of the seals, and the overall comfort of daily operation.

How to choose the right window and avoid mistakes

When selecting a door window, it is worth paying attention to compliance with OEM markings and interchangeable numbers to ensure that the element will work properly with the door structure and the other windows in the vehicle. Proper component identification is particularly important when purchasing items from the used category.

To better understand the principles of matching windows and other sub-assemblies to a specific car model, it is worth using the expert advice described in the article No more bad purchases! How to professionally choose used car parts, saving time and nerves, where, among other things, the importance of OEM compatibility and practical purchasing tips are discussed.

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