Audi A3 8P Door Window Seal Guide Rubber Gasket Rear Right O/S 8P7839480B

The Audi A3 8P Rear Left Window Regulator Seal is an original body part from the window seals and trim category, designed for installation on the rear left side. It ensures proper window guidance and seals the gap between the window and the door frame, contributing to acoustic comfort and protection of the vehicle's interior.

Specifications and technical data

• SKU: 8P7839480B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P7839480B
• Substitutable numbers: 8P7839480B, 8P7 839 480 B, 8P7 839 480 C, 8P7839480C
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Audi A3 8P Window Seal

The presented Audi A3 8P Rear Left Window Regulator Seal is designed as a guiding and sealing element for the window in the rear left door. It is responsible for:

• stable window guidance in the regulator during raising and lowering,
• reducing cabin noise by sealing the contact between the window and the door frame,
• protection against water and dirt that could enter the door and cabin.

Thanks to its precise fit for the A3 8P body model, the seal works with the factory window lifting mechanism, maintaining the correct door geometry and line.

Construction and Body Fitment

The seal is a molded part designed for a specific door frame profile, allowing for precise adhesion to the window edge and maintaining proper pressure along the entire length of the regulator. The design intended for rear left side installation eliminates the need for any modifications or forceful adjustments.

The appropriate flexibility of the material allows for:

• compensation for minor body deformations during driving,
• maintaining sealing in varying temperature conditions,
• reducing window vibrations, which affects the smooth operation of the lifting mechanism.

Benefits of Using an Original Audi Seal

Using an original window regulator seal in the Audi A3 8P allows for the preservation of factory body parameters in terms of acoustics and sealing. Key benefits include:

• factory fit for the rear left door – no installation or fitment issues,
• consistency with other body seals – maintaining a uniform line and operation of all windows,
• stable window mechanism operation – reducing the risk of jams and uneven movement.

This solution is particularly recommended when replacing a worn, brittle, or leaky seal, where air noise, leaks, or window play in the regulator occur.

Item Condition and Service Application

The offered seal is from the group of original Audi parts and is intended for service applications in A3 8P models, specifically for the rear left door window. It is suitable for both accident repairs and standard operational replacements when the existing seal has lost its properties.

Replacing this part is recommended when the following are observed:

• increased noise around the rear left window at higher speeds,
• signs of moisture or water in the lower part of the door,
• loose window operation or noticeable vibrations during its lowering and raising.

Other Audi Window Seals and Trim

If you are also looking for other Audi window seals and trim for your car, check out our dedicated category: Audi window seals and trim. There you will find a wide selection of body parts tailored to various models of this brand.

For drivers interested in broader diagnostics and maintaining their car in good condition, we have also prepared a practical service guide: diesel injector faults – how to recognize them and what are the consequences of neglecting them. This is a valuable addition to your knowledge when planning comprehensive vehicle maintenance.