Mercedes Vito Viano W639 Rear Sliding Door Window Right O/S Glazing Glass AS2

Mercedes Vito Viano W639 Rear Sliding Door Window Right O/S Glazing Glass AS2 is an original side window designed for the rear right section of the body, intended for the sliding door. Thanks to the use of AS2 grade glass, it ensures an appropriate level of light transmission, safety, and comfort during daily use.

Specifications and technical data

• SKU: A6397350709
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397350709
• Substitutable numbers: A6397350709, A 639 735 07 09
• Location on the vehicle: Rear, Right
• Category: Car Glass

Purpose and body fitment

The presented window belongs to the Car windows category and is dedicated to the rear right side of the vehicle, in the sliding door area. The glass construction is adapted to the factory mounting opening in the body, which allows for maintaining the correct body geometry and seal integrity.

Its placement in the rear part of the vehicle promotes stable operation of the sliding door mechanism, and the properly shaped edge of the glass allows for correct guidance in the rails and seals. As a result, the window works with factory body components without the need for additional modifications.

Characteristics of AS2 glass

The used AS2 marked glass meets the requirements for light transmission and safety for side windows. This type of glazing is commonly used in modern vehicles, providing:

• adequate visibility for passengers and the driver,
• a controlled level of tinting in accordance with regulations for rear side windows,
• increased resistance to mechanical damage compared to traditional window glass.

The choice of AS2 glass in the rear body zone contributes to passenger comfort by limiting excessive interior heating and improving optical conditions during daytime driving.

Function in sliding doors

The window designed for sliding doors in Mercedes Vito and Viano W639 models operates in a dynamic environment – it is exposed to frequent opening and closing, vibrations, and temperature changes. The glass construction is adapted to:

• stable cooperation with the door sliding mechanism,
• proper sealing around the entire perimeter,
• maintaining the rigidity of the door leaf.

Proper fitment of the window in this area is important not only for comfort but also for protecting the interior from water, dust, and external noise. Maintaining tightness in the sliding door zone affects cabin acoustics as well as the durability of upholstery and equipment elements.

Condition and service application

The item is used, which in service practice means the possibility of an economical replacement of a damaged window while maintaining the manufacturer's original specifications. In the case of post-accident repairs or replacement after breakage, using original glass from the same model series allows for maintaining visual consistency of the body and compliance with factory parameters.

Choosing an original window from this product group is particularly important for commercial vehicles, where durability, repeatability of assembly, and the possibility of trouble-free servicing in the future are key.

Support in selection by OEM number and VIN

When selecting windows for specific Mercedes Vito and Viano W639 body versions, it is crucial to verify compatibility by OEM number and vehicle VIN. This allows avoiding problems with the fitment of the shape, mounts, and glass bending radii, especially in the case of different body and equipment variants.

To facilitate the verification process, it is worth using the practical tips described in the article Guide: how to choose the right car part by VIN and OEM number, where the method of checking the compatibility of used parts with a specific vehicle is discussed step by step.

If you are planning a comprehensive repair or modernization of the side glazing zone in your Mercedes and need other elements from the same group, such as side windows, sliding door windows, or rear windows, check the available parts in the Mercedes car windows category.