Volkswagen Passat B6 Door Window Lifter Regulator Rear Left N/S 3C5839461K

Volkswagen Passat B6 Door Window Lifter Regulator Rear Left N/S is an original component from the Window regulators and motors group, designed for the rear left side of the vehicle body. It ensures stable window guidance, proper operation of the lifting and lowering mechanism, and maintains the factory functionality of the door. This is a practical solution for users who want to restore the efficiency of the window system without compromising on parts consistent with the Volkswagen design.

Specifications and technical data

• SKU: 3C5839461K
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C5839461K
• Substitutable numbers: 3C5839461K, 3C5 839 461 K, 3C4839755J, 3C4 839 755 J
• Location on the vehicle: Rear, Left
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The regulator is designed for installation in the rear left door, where it is responsible for the smooth guidance of the window along the rails and the transmission of drive from the control mechanism. Thanks to the precise fit to the Passat B6 door structure, the window's operating geometry is maintained, which reduces the risk of jamming, misalignment, or excessive play. The component works with the factory window control system, allowing for the maintenance of operational comfort from the driver's panel as well as the button in the door itself. Using an original solution minimizes the need for installation modifications and facilitates assembly.

Benefits of using an original window regulator

Using a regulator dedicated to the Passat B6 translates into a number of practical advantages:

• maintenance of factory fitment to the door structure and window rails,
• proper cooperation with the existing electric control system,
• reduction of noise and vibrations during window operation,
• reduced risk of recurring faults resulting from component mismatch. For the user, this means stable, predictable window operation and no problems with closing or positioning within the seals. A properly selected regulator also helps protect other mechanism components from excessive load.

Installation characteristics

The regulator is structurally prepared for installation in the factory mounting points in the rear left door of the Passat B6. Thanks to this, service work can be carried out in an orderly manner, without the need to interfere with the door structure or modify the mounts. Correct installation allows for maintaining door tightness and proper alignment of the upholstery after the work is completed. Before installation, it is worth verifying the compatibility of the part with the vehicle based on the manufacturer's markings and catalog data. This facilitates the selection of the correct variant and reduces the risk of improper fitment.

Condition and service application

The offered component comes from dismantling and is intended for re-installation in a vehicle where the window mechanism has been damaged or has suffered from operational wear. Choosing such a solution allows for lower repair costs while maintaining a design consistent with the original Volkswagen project. It is a reasonable option for workshops and individual users who are looking for a compromise between price and functionality. If you are planning a comprehensive repair or modernization of the door and window area in your Volkswagen and need other components from the same group, such as lifting mechanisms, drives, or rails, check the available parts in the Volkswagen window regulators and motors category.

Part selection and technical knowledge

When selecting a regulator for the Passat B6, it is crucial to consider the mounting side and body type, as well as to compare the construction with the factory-installed element. In workshop practice, manufacturer markings and catalog data are often used to avoid mistakes when ordering. Proper selection reduces vehicle downtime and eliminates the need for re-dismantling the door upholstery. For users interested in a broader perspective on the use of secondary market components in vehicle repairs, an expert guide discussing facts and myths about used drive components may be useful – you can find it in the article Why it is worth buying used gearboxes and engines – facts instead of myths.