VW Volkswagen Tiguan AX1 Door Window Aperture Seal Rear Left N/S 5NA839431F

VW Volkswagen Tiguan AX1 Door Window Aperture Seal Rear Left N/S is an original body component from the Window seals and trims group, designed for installation in the rear left door. It ensures a tight fit of the window to the door frame, reducing noise, vibrations, and water ingress into the vehicle interior, which translates into stable acoustic and operational comfort.

Specifications and technical data

• SKU: 5NA839431F
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5NA839431F
• Substitutable numbers: 5NA839431F, 5NA 839 431 F, 5NA839431, 5NA 839 431
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal is dedicated to the rear left door area in the Tiguan AX1 model, where it is responsible for the proper guidance and sealing of the window. The component works in direct contact with the side window, stabilizing its position during opening and closing and minimizing the risk of play and unwanted noises.

Thanks to the factory profile and appropriately selected geometry, the seal helps maintain the correct pressure of the window against the door frame, which supports the protection of the interior against moisture, dust, and air gusts at higher speeds. This is particularly important in daily operation when the vehicle is exposed to variable weather conditions.

Construction and body fitment

The seal has been designed as a component structurally compliant with the factory standards of the Volkswagen brand, which translates into a precise fit to the shape of the door frame and window guides. The working profile is formed to work with the factory window lifting mechanism, without the need for modifying other components.

The appropriately selected material flexibility allows for secure seating in the mounting slot, while maintaining the required tightness around the entire perimeter. This type of solution reduces the risk of leaks at the joints and facilitates proper installation in service conditions.

Characteristics of the used component

The offered seal is a used component, which in practice means that it comes from dismantling and was previously used in a vehicle. This type of component is a good choice in situations where you want to maintain the original assembly specification while optimizing the costs of repair or replacement.

In the case of window seals, it is crucial to maintain the proper shape and working flexibility, which is why before re-installation, it is worth verifying the way it is positioned in the door frame and the correctness of the fit to the window after installation. A correctly selected and installed component allows for restoring the factory sealing parameters in the rear left part of the body.

Benefits of using an original seal

Using an original seal in the rear left door area translates into several practical operational benefits:

• maintaining the factory geometry of window guidance and stable operation of the lifting mechanism,
• reducing noise in the cabin thanks to better sealing of the window perimeter,
• increasing protection of the interior against water and external contaminants,
• visual and assembly consistency with other body elements.

For users who want to keep the vehicle in a configuration close to the factory one, choosing such a component is a technically safe and predictable solution in terms of assembly.

Complementary Volkswagen window seals and trims

If you are planning a comprehensive repair or upgrade of the door area in your Volkswagen and need other elements from the same group, such as additional window seals, window trims, or door frame finishing elements, check the available parts in the Volkswagen window seals and trims category.

Additional technical support

When planning broader service work, including other vehicle systems, guide materials regarding the selection and assessment of the condition of used components may be helpful. In the context of consumables and suspension, it is worth reading the article Standard vs. sports suspension – differences in construction and is it worth buying used suspension parts?, which discusses the practical aspects of choosing used parts and their impact on vehicle operation.