Mercedes W212 Window Glass Rear Door Left N/S Glazing Quarter AS2 A2127303900

The Mercedes W212 Rear Left Door Quarter Glass AS2 is a precisely fitted component from the automotive glass category, designed for the rear left part of the body. It ensures proper body rigidity, adequate visibility, and a consistent aesthetic of the side window line in your Mercedes. This is a practical solution for users seeking a proven, original part from disassembly.

Specifications and technical data

• SKU: A2127303900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2127303900
• Substitutable numbers: A2127303900, A 212 730 39 00
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and Fit for Mercedes W212

The rear left quarter glass has been specifically designed for the Mercedes E-Class W212 generation. Its placement in the rear of the vehicle on the driver's side ensures a proper closure of the space between the pillar and the door, which contributes to:

• stability of the side window structure,
• correct alignment of seals and trim,
• maintenance of the vehicle's original styling line.

Thanks to its dedicated shape and appropriate edge profile, the glass works with original mounting points and door hardware, facilitating installation and reducing the risk of leaks.

Technical Characteristics of AS2 Side Glass

The AS2 designation indicates glass with parameters suitable for use in the side areas of the body, with appropriate light transmission and resistance to mechanical damage typical of daily use. The construction of the rear left quarter glass ensures:

• appropriate glass thickness adapted to safety requirements,
• compatibility with factory door seals and frames,
• stable seating within the door and pillar structure.

This solution helps maintain proper acoustic insulation and limits the penetration of external weather conditions into the vehicle's interior.

Condition, Origin, and Practical Application

The offered glass is a used part from disassembly, offering a favorable compromise between cost and functionality. Choosing an original used side glass allows you to:

• maintain compliance with the vehicle's factory specifications,
• avoid problems with fitting the shape and bending radii,
• reduce repair costs compared to a new part.

This solution is suitable for both post-accident repairs and for replacing glass damaged due to wear and tear or vandalism.

Benefits of Installing Original Side Glass

Using a dedicated quarter glass for the Mercedes W212 translates into a number of practical advantages:

• Factory Fit – maintaining correct mounting clearances and body alignment.
• Consistent Aesthetics – uniform glass tint compared to other windows in the vehicle.
• Hassle-Free Installation – construction prepared to work with original door components.

This makes replacing damaged glass with an original part from disassembly a technically safe and economically sound solution.

More Automotive Glass for Mercedes and Knowledge about Used Parts

If you are looking for other Mercedes automotive glass suitable for various models of this brand, check out our dedicated category: Mercedes automotive glass. You will find a wide selection of glazing elements for popular series, including used market solutions.

When planning to install a used body part, it is worth learning about the specifics of disassembled parts and their visual and functional potential. You can read more about this in the article: Replacing Body Parts with Used Ones – Can Disassembled Sheet Metal Parts Look Like New?, where we discuss, among other things, components for Mercedes and other popular brands.