Mercedes W213 Sunroof Sliding Roof Middle Window Glass Glazing Panel AS3

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W213 Sunroof Sliding Roof Middle Window Glass Glazing Panel AS3 is an original body component designed for the W213 generation E-Class models, ensuring comfortable cabin ventilation and interior illumination. Thanks to its factory design, the sunroof maintains proper roof rigidity, and the glass with AS3 specification improves protection against radiation and external factors. This is the solution for users who want to restore the full functionality of the sliding roof while maintaining compliance with Mercedes factory standards.

Specifications and technical data

• SKU: A2137800800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2137800800
• Substitutable numbers: A2137800800, A 213 780 08 00
• Category: Other Exterior Parts & Accessories

Purpose and function of the Mercedes W213 sunroof

The presented item is the middle sliding roof window for the Mercedes E-Class W213 model, responsible for opening and closing the space in the vehicle's roof. Its task is to provide controlled airflow, reduce negative pressure in the cabin, and improve acoustic comfort at higher speeds. The design, matched to the W213 roof line, allows for proper water drainage from the sunroof channels and maintains the tightness of the system.

Construction and performance parameters

The middle sunroof window has been designed as an integral part of the sliding roof system, working in conjunction with guide rails, the drive mechanism, and perimeter seals. The glass with the AS3 marking is characterized by an appropriate degree of tinting and filtration, which limits interior heating and improves travel comfort on sunny days. The shape and edge profile are adapted to the factory dimensions of the roof opening, which enables precise fitting with the frame and other mechanism components.

Thanks to the original design, the proper roof geometry is maintained, which is important for both aerodynamics and the operation of seals and the water drainage system. A correctly selected middle sunroof window minimizes the risk of air noise, leaks, and stress within the roof skin.

Benefits of using an original sunroof

Using a factory component in a Mercedes W213 allows for maintaining structural consistency of the body and preserving the parameters specified by the manufacturer. Key advantages include:

• maintaining the factory roof line and proper fitment with the sunroof frame,
• compatibility with the existing sliding mechanism and seal system,
• appropriate light and radiation filtration thanks to the AS3 glass,
• reduction of noise and leak risks with proper installation.

For the user, this means stable operation of the entire roof system and comfortable vehicle operation without the need for structural modifications.

Condition, selection, and installation of the component

The offered sunroof comes from a used vehicle, which allows for an economical restoration of the roof's efficiency while maintaining original manufacturing quality. Before installation, it is recommended to verify compatibility with the specific W213 body version and check the condition of the guides, seals, and drive mechanism to avoid future disassembly. Professional installation at a specialized service center facilitates the correct setting of end positions, adjustment of the glass height relative to the roof skin, and leak testing after installation.

Roof system expansion and related parts

If you are planning a comprehensive repair or upgrade of the roof area in your Mercedes and need other elements from the same group, such as additional glazing modules, sliding mechanism components, or perimeter seals, check the available parts in the Other Mercedes category.

In the case of expanding or servicing high-performance vehicles, it is also worth paying attention to the structural differences between standard and sports versions – a good point of reference will be an article describing the characteristics of powertrains, brakes, and chassis in sports models, available at the link Audi RS vs other models – what is hidden under the hood and chassis?.

If you care about combining savings with a responsible approach to the environment, it is worth learning about the advantages of reusing body and glazing components – more information can be found in the material Eco-driving: discover the benefits of used car parts.