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Mercedes-Benz Vito Viano W639 Rear Left N/S Sliding Door Window Glass AS2
SKU: A6397350809
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Condition:
Used
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Mercedes-Benz Vito Viano W639 Rear Left N/S Sliding Door Window Glass AS2 is an original component from the Car windows category, designed for installation in the rear left section of the vehicle body. The product ensures a proper fit for the sliding or hinged door structure in Vito and Viano W639 models, maintaining factory safety parameters and acoustic comfort.
Specifications and technical data
- SKU: A6397350809
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A6397350809
- Substitutable numbers: A6397350809, A 639 735 08 09, BG
- Location on the vehicle: Rear, Left
- Category: Car Glass
Purpose and fitment
The window has been designed specifically for the rear left part of the Mercedes Vito/Viano W639 body, taking into account the door geometry and the vehicle's side profile. The placement on the vehicle in the Rear, Left area guarantees compatibility with factory mounting points and seals, which facilitates installation and reduces the risk of leaks.
The AS2 marking indicates the use of an appropriate class of tempered glass, meeting requirements regarding light transmittance and resistance to mechanical damage. As a result, the window maintains proper performance parameters in daily operation, both in private and fleet applications.
Technical characteristics of AS2 glass
AS2 class glass used in the side windows of vehicles such as the Mercedes Vito and Viano provides:
- appropriate light transmittance, in accordance with requirements for side windows,
- increased resistance to breakage due to the tempering process,
- a controlled fragmentation pattern in case of damage, improving passenger safety,
- dimensional stability, which is essential for installation in door guides and seals.
Thanks to these features, the window works well with factory lifting/tilting mechanisms (if present) and seals, minimizing cabin noise and the risk of air leaks.
Benefits of using an original Mercedes window
Choosing a component from the Mercedes brand allows you to maintain the visual and technical consistency of the entire side body area. The original rear left door window for the Vito/Viano W639 ensures:
- factory fitment to the shape of the door frame and body,
- proper cooperation with existing seals and guide rails,
- maintenance of uniform glass optics relative to other windows in the vehicle,
- easier installation for the workshop due to compliance with factory standards.
The product in the Car windows category is a suitable choice for post-accident repairs, replacement after mechanical damage, or for the renovation of the side body section in commercial and passenger vehicles based on the W639 platform.
Practical application and installation
The Mercedes-Benz Vito Viano W639 Rear Left N/S Sliding Door Window Glass AS2 will work well in both body and paint shops and independent workshops specializing in the Mercedes brand. Thanks to the precise fit to the rear left body area, it is possible to maintain the correct door geometry and the tightness of the window and seal system.
During installation, it is recommended to use appropriate tools for removing upholstery and guides, as well as to check the condition of associated components (seals, strips, mounts) to fully utilize the potential of the newly installed window and reduce the risk of recurring leaks.
Why choose used original parts for premium cars
In the case of Mercedes Vito/Viano W639 class vehicles, choosing a used, original glass component often represents a reasonable compromise between cost and quality. You receive a component that complies with factory standards without having to resort to cheaper replacements with uncertain parameters. If you want to better understand why the market is increasingly opting for such solutions, read the article: Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.
Expanding the repair – other windows for Mercedes
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 side door windows, sliding windows, or additional glass panels, check the available parts in the Mercedes car windows category.
Delivery details
Ship to: Italy
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Delivery time
Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in Italy, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.











