Mercedes CL203 Front Left N/S Window Glass AS2 A2037252310

Mercedes CL203 Front Left N/S Window Glass AS2 is a factory-original body component designed for installation in the front left door of Mercedes CLC CL203 series vehicles. The glass, marked with the AS2 rating, ensures the appropriate level of light transmission and compliance with homologation requirements, which is essential for both safety and driving comfort.

Specifications and technical data

• SKU: A2037252310
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037252310
• Substitutable numbers: A2037252310, A 203 725 23 10, ASZ
• Location on the vehicle: Front, Left
• Category: Car Glass

Purpose and fitment

The presented window glass is designed for installation in the front left door of the CLC CL203 body type. Its placement in the driver's zone requires precise fitting to the door frame, guides, and lifting mechanism, which is why using original glass is crucial for the proper operation of the entire system.

Thanks to a design that adheres to factory standards, the glass works seamlessly with stock seals, trim strips, and guides, reducing the risk of leaks, rattling, or excessive vibrations while driving.

Characteristics of AS2 glass

The AS2 marking indicates a specific level of light transmission and radiation filtration, compliant with requirements for side windows in passenger vehicles. This type of glass provides:

• stable visibility in various lighting conditions,
• adequate mechanical strength for daily use,
• compliance with safety standards applicable to side windows.

Selecting glass with the correct optical class is important not only for driver comfort but also for the proper operation of mirrors, assistance systems, and the overall ergonomics of the field of view.

Condition of the component and practical application

The glass comes from the secondary market, which allows for economical vehicle repair while maintaining the manufacturer's original specifications. A used component of this type is often chosen for:

• repairs following side collisions,
• replacing damaged or scratched glass,
• restoring the vehicle to a near-factory condition after body and paint work.

Using original glass from the same model series eliminates the need for additional modifications and facilitates installation in the workshop.

Benefits of choosing original used glass

Choosing original glass from dismantling is a reasonable compromise between cost and maintaining factory parameters. This type of part:

• maintains consistency with the body line and factory gaps,
• allows for a consistent appearance of the vehicle's side zone,
• promotes waste reduction through the reuse of a fully functional component.

If you want to better understand how to safely use secondary market parts and what to look for when choosing them, check out the article Used car parts: myths and facts worth knowing before buying glass.

Compatibility with other body components

When replacing the door glass, it is worth paying attention to the condition of the guides, seals, and the lifting mechanism. Properly selected glass works with these elements, ensuring smooth opening and closing and reducing wind noise while driving. If you are planning a wider range of work on the side of the body, you may also consider other components from the Car windows group to maintain the visual and technical consistency of the entire zone.

Summary

Mercedes CL203 Front Left N/S Window Glass AS2 is an original side window designed for installation in the front left door of this vehicle series. Using glass with the correct optical class and proper shape facilitates vehicle repair, allows for the preservation of factory body parameters, and provides a practical solution for post-accident repairs or replacing a damaged component.