Audi A1 8X4 5D Door Window Seal Rubber Gasket Rear Right O/S Side 8X4839440C

Audi A1 8X4 5D Door Window Seal Rubber Gasket Rear Right O/S Side is an original body component designed for installation in the rear right section of the vehicle. It ensures a tight seal between the window and the door frame, which translates into stable protection against water, noise, and contaminants. Thanks to its factory-fit design for the Audi A1, installation is straightforward, and the visual and functional effect is consistent with the rest of the bodywork.

Specifications and technical data

• SKU: 8X4839440C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8X4839440C
• Substitutable numbers: 8X4839440C, 8X4 839 440 C
• Location on the vehicle: Rear, Right
• Category: Boot & Hatch Lids

Purpose and fitment for Audi A1

The presented seal is a component designed for the rear right door of the five-door Audi A1 8X model. The construction has been engineered for the specific geometry of the door frame, allowing for precise window guidance and maintaining proper pressure along the entire perimeter. Such a fit reduces the risk of rattling, looseness, and leaks, which often occur with universal-profile aftermarket replacements.

Construction and function of the window seal

The door window seal performs several key operational functions:

• creates a flexible barrier between the window and the door frame,
• stabilizes the position of the window during driving and when closing the door,
• limits the penetration of water, dust, and air into the interior,
• supports cabin acoustics by reducing wind noise.

A properly selected rubber profile allows for repeated window opening and closing cycles without losing flexibility under typical operating conditions. As a result, acoustic comfort and the sealing of the rear part of the body remain at a stable level.

Component condition and installation aspects

The seal comes from dismantling, which means it is a used part that retains the functionality required for further use. This type of body component is particularly important for post-collision repairs, door or window replacements, as well as for eliminating leaks and excessive noise in the rear of the cabin.

During installation, it is recommended to:

• thoroughly clean the contact surface in the door frame,
• inspect the window guides and the lifting mechanism,
• check for even seating of the seal along the entire perimeter.

This approach minimizes the risk of needing to disassemble it again and allows you to fully utilize the sealing properties of the component.

Application in the rear body zone

The door window seal is a part associated with the group of body components referred to as Tailgates and rear parts, covering components responsible for the tightness and functionality of the rear of the vehicle. Replacing a worn or damaged seal is important not only from a comfort perspective but also for protecting the interior against moisture, which can lead to corrosion and electrical system issues in the rear cabin zone.

If you are planning a comprehensive repair or upgrade of the rear body zone in your Audi and need other elements from the same group, such as seals, trim strips, or mounting elements, check the available parts in the Audi Tailgates and rear parts category.

Technical support and Audi vehicle development

For users interested in more advanced modifications of Audi models, including high-power units, the guide material dedicated to safely increasing performance may be helpful. In this context, it is worth reading the article 2.5 TFSI DAZA – how to safely increase the power of an Audi RS3 by buying used turbochargers, which discusses the practical aspects of component selection and the impact of modifications on vehicle operation.

Summary

The Audi A1 8X4 5D Door Window Seal Rubber Gasket Rear Right O/S Side is a practical body component that allows you to restore proper sealing and acoustic comfort in the rear of the vehicle. Thanks to its factory fit for the specific model and its design for installation on the rear right side of the body, it represents a functional solution for repairs and restoration of rear doors, without the need for compromises characteristic of universal replacements.