Mercedes X253 Door Window Glass AS3 Dark Tinted Rear Left N/S A2537350500

Mercedes X253 Door Window Glass AS3 Dark Tinted Rear Left N/S is an original component from the Car windows category, designed for installation in the rear left section of the vehicle body. The AS3 standard tinted glass provides increased optical comfort for passengers and a consistent, factory-original look for the Mercedes side profile.

Specifications and technical data

• SKU: A2537350500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2537350500
• Substitutable numbers: A2537350500, A 253 735 05 00
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and function of the rear left window

The described window is designed as a side element for the rear part of the body on the driver's side. Its construction is adapted to factory guides and seals, allowing for precise seating in the door and proper operation with the window lifting mechanism. This ensures airtightness, appropriate lateral rigidity, and correct functioning of the entire window system.

The AS3 standard indicates clearly tinted glass that limits light penetration and improves thermal comfort inside the cabin. This type of glass also helps reduce glare, which is particularly noticeable when driving on sunny days or after dark in conditions of intense external lighting.

Characteristics of AS3 glass and tinting

AS3 standard glass is a solution used in areas where darker tinting is permitted compared to the windshield. In practice, this means:

• increased protection against excessive interior heating,
• limited visibility into the cabin from the outside,
• a more consistent, aesthetic appearance of the side body section.

The tinted rear left window improves the comfort of rear-seat passengers while maintaining the clarity required for safe vehicle operation. This solution is particularly beneficial in cars used in urban traffic and on longer routes, where stable interior lighting conditions contribute to travel ergonomics.

Benefits of using an original Mercedes window

Choosing an original side window for a Mercedes translates into a perfect fit for the factory door geometry and compliance with the manufacturer's technological parameters. Thanks to this:

• the proper body line and fit with seals are maintained,
• the window lifting and lowering mechanism operates within the range intended by the manufacturer,
• factory acoustic properties and structural lateral rigidity are preserved.

An element from the Car windows group selected according to the intended use for a Mercedes minimizes the risk of installation problems and the need for additional modifications. This is particularly important for post-accident repairs, where parameter repeatability and compliance with technical documentation are crucial.

Application in body repairs and renovations

The rear left window is useful both for typical repairs after mechanical damage and for comprehensive renovation of the side body section. It can be used in situations where the existing window has cracked, scratched, or suffered other damage affecting visibility and safety. The used nature of the item allows for optimizing repair costs while maintaining the original manufacturer's specification.

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

Support with selection and purchase optimization

When selecting a rear left window for a specific Mercedes body version, it is worth paying attention to compatibility with vehicle equipment and the configuration of the other windows. A properly selected element allows for maintaining a uniform level of tinting and a consistent look for the entire set of side windows. In the case of extensive repairs or replacing a larger number of components, a One-Stop-Shop approach may be helpful, described in more detail in the article Comprehensive supply: from the engine to the smallest clip – how to complete used car parts in one place?.

If the window is being replaced as part of a post-accident repair or broader bodywork and paint jobs, it is worth considering the use of original used parts instead of random replacements. Differences in geometry or manufacturing quality can affect the tightness and durability of the repair, which is discussed in more detail in the material Post-accident repair of your car: why are used body parts a better choice than replacements?.