Volkswagen Passat B6 Window Lifter Guide Rail Support Rear Right O/S R3C5839408C

Volkswagen Passat B6 Window Lifter Guide Rail Support Rear Right O/S is an original body component from the Protective and decorative strips group, designed for the rear right section of the vehicle. It ensures stable guidance of the window mechanism, which translates into smooth operation of the lifter and proper positioning of the window in the door frame. This is a practical solution for users who want to restore the correct operation of the window in their Passat B6 while maintaining factory assembly standards.

Specifications and technical data

• SKU: 3C5839408C
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C5839408C
• Substitutable numbers: 3C5839408C, 3C5 839 408 C
• Location on the vehicle: Rear, Right
• Part type: Door
• Category: Body Mouldings & Trims

Purpose and function of the component

The window lifter guide rail in the rear right part of the body is responsible for the precise vertical guidance of the window and the stabilization of the entire mechanism. In practice, this means:

• reducing window play and vibrations while driving,
• even raising and lowering of the window,
• reducing the risk of jamming and uneven operation of the lifter,
• maintaining the correct pressure of the window against the seals.

Thanks to the use of an original guide rail, compliance with the factory door geometry is maintained, which is important for both user comfort and body tightness.

Body compatibility and installation

The component has been designed specifically for the rear right part of the Volkswagen Passat B6 body, which facilitates matching to factory mounting points. The design of the guide rail allows for installation in place of a worn or damaged component without the need for door modifications.

Replacing the guide rail is particularly recommended when symptoms appear such as:

• uneven window lifting,
• cracking or resistance during lifter operation,
• excessive window tilt relative to the door frame.

Using an original component helps restore stable operation of the window mechanism and reduce wear on other lifter components.

Characteristics and advantages of using the original guide rail

The original window lifter guide rail for the Passat B6 has been manufactured in accordance with the vehicle manufacturer's requirements, which translates into dimensional repeatability and appropriate structural rigidity. Compared to replacements, it provides:

• better fit to factory mounts in the door,
• consistency with other window mechanism components,
• preservation of the lifter's operating characteristics as designed by the manufacturer.

Thanks to this, the user gains more predictable window operation and a lower risk of recurring faults resulting from inaccurate component fitting.

Component condition and service application

The product comes from disassembly and is intended for service applications in vehicles where the factory guide rail has worn out or been damaged. It is a practical solution for workshops and individual users who want to restore the efficiency of the window mechanism while maintaining the original design specification.

Replacing the guide rail is often performed in conjunction with other work on the window mechanism, which allows for a comprehensive refresh of the system and reduces the risk of further repairs in the near future.

Expansion of upgrades within the Volkswagen body

If you are planning a comprehensive repair or upgrade of the side body zone in your Volkswagen and need other elements from the same group, such as covers, overlays, or additional strips, check the available parts in the Volkswagen protective and decorative strips category.

For users interested in diagnostics and prevention of other vehicle systems, materials regarding the operation of diesel units may also be useful – more information on the symptoms and consequences of neglect in the fuel system can be found in the article Diesel injector faults – how to recognize them and what are the risks of neglecting them.