Window Seal Volkswagen VW Passat B6 Door Rear Left N/S Gasket Strip 3C5839471B

Audi A4 B7 Door Window Seal Left Rear is a precisely profiled component from the Window Seals and Trim category, designed for installation in the rear left door. It is responsible for the airtight guidance of the window, noise reduction, and protection of the interior from water and dirt, ensuring stable operation of the window lifting mechanism. Thanks to its factory fit to the Volkswagen door construction, it guarantees proper adhesion to the window and bodywork without the need for modifications.

Specifications and technical data

• SKU: 3C5839471B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C5839471B
• Substitutable numbers: 3C5839471B
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Seal

The presented seal is designed for installation in the rear left area of the body, within the door, where it performs several key operational functions:

• stabilizes the window in the guide during raising and lowering,
• limits the ingress of water and moisture into the door interior,
• reduces air noise at higher speeds,
• protects the window edge from excessive mechanical wear.

Thanks to its appropriate profile and fit to the door geometry, the seal helps maintain proper cabin airtightness, which translates to higher acoustic comfort and stable operation of the window lifting mechanism.

Benefits of Using an Original Seal

Choosing a component from the Volkswagen group allows you to maintain the parameters intended by the vehicle manufacturer. The appropriate hardness of the compound and the shape of the cross-section affect:

• correct adhesion to the window and door frame without excessive stress,
• reduction of the risk of the window jamming in extreme positions,
• maintenance of even pressure along the entire edge,
• consistent visual appearance with other door trim elements.

By using a dedicated seal, you minimize the need for additional window mechanism adjustments and the risk of leaks, which is particularly important when operating the car in varying weather conditions.

Installation Characteristics

The seal is prepared for installation in the factory mounting points in the rear left door, which facilitates service work and reduces replacement time. When properly seated:

• it ensures even window guidance along its entire height,
• it does not require interference with the door structure or additional adjustments,
• it allows for maintaining the original line of adhesion to the window frame.

For optimal results, installation in a service environment is recommended, with a check of the condition of other window guide elements in the same door area.

Application in the Side Window System

The seal works in direct contact with the side window, so its condition affects:

• the smoothness of the window's movement up and down,
• the noise level in the cabin with the doors closed,
• water drainage from the window frame area,
• the overall airtightness of the side body section.

Replacing a worn seal with a functional component restores the original operating parameters of the window system, which is particularly important in vehicles used daily, including in urban conditions.

If you are planning a comprehensive repair or upgrade of the side window area in your Volkswagen and need other elements from the same group, such as guides, trim strips, or additional sealing profiles, check the available parts in the category Volkswagen Window Seals and Trim.

For those interested in a broader perspective on the development of construction and solutions used in higher-class cars, an article describing changes in the body structure and operational components over the years may be helpful – you can find it here: Evolution of the Mercedes S-Class: from W140 to W222 – innovations and parts in subsequent generations.