Mercedes Vito Viano W639 Sliding Door Window Rear Left N/S Glazing Glass AS2

Mercedes Vito Viano W639 Sliding Door Window Rear Left N/S Glazing Glass AS2 is an original component from the Car windows category, designed for installation in the rear left door. The glass with the AS2 marking ensures the appropriate level of light transmission and safety, and its precise fit for the specific Vito/Viano generation facilitates the efficient replacement of a damaged window. It is a practical solution for users who want to restore full functionality to the side body area while maintaining the vehicle's factory character.

Specifications and technical data

• SKU: A6397350609
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397350609
• Substitutable numbers: A6397350609, A 639 735 06 09
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and body fitment

The presented window has been designed for installation in the rear left side door of the vehicle, allowing for the precise reproduction of the original glazing geometry. Thanks to its dedicated shape and appropriate edge profile, the glass works with factory seals, guides, and the lifting mechanism, minimizing the risk of leaks or improper operation.

The AS2 marking indicates a specific standard of light transmission and radiation filtration, which is important for both driving comfort and compliance with regulations. Using the correct type of glass in the side body area helps maintain optical consistency across all windows in the vehicle.

Technical characteristics of AS2 glass

AS2 class glass used in vehicle side windows combines good visibility with a reduction in excessive interior heating. In practice, this means:

• appropriately selected light transmission for safe observation of the surroundings,
• maintaining the proper rigidity of the pane while ensuring controlled behavior in the event of damage,
• compatibility with factory seals and the door frame.

As a result, replacing a damaged window with an element of the same standard allows for maintaining the vehicle's original performance parameters without the need for body or equipment modifications.

Benefits of using an original side window

Using an original side window in the rear left door translates into a number of practical benefits. The most important include:

• factory fitment to the body – the correct outline and thickness of the glass facilitate installation and reduce the risk of subsequent adjustments,
• maintaining a consistent vehicle appearance – uniform shade and character of the glass relative to the other windows,
• maintaining the proper operation of the window lifting mechanism – no excessive resistance or stress in the guides.

For users who value functionality and aesthetics, replacing a damaged window with an original element from the Car windows category is a solution that allows the vehicle to be restored to full operational efficiency.

Condition of the element and practical application

The offered window is a used part, which in practice means a favorable combination of price and original origin. This type of component will work well both for standard repairs after a collision or mechanical damage, and for stage-by-stage vehicle restoration, where matching factory design solutions is essential.

Replacing the side window in the rear left door is important not only for passenger comfort but also for the rigidity and tightness of the body in this part of the vehicle. A properly selected and installed element helps reduce noise, drafts, and the risk of moisture entering the interior.

Support with selection and additional information

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

When choosing used body and glazing elements, it is worth paying attention to their origin and the method of removal. More practical tips on how to consciously choose used body components and what to look for when evaluating them can be found in the article: Replacing body parts with used ones – can salvaged body parts look like new?.