VW Passat B8 Saloon Door Window Lifter Regulator Rear Left N/S 3G5839461B

VW Passat B8 Saloon Door Window Lifter Regulator Rear Left N/S is a component from the Window regulators and motors group, designed for the rear left window in the saloon body style. It ensures stable window operation and proper compatibility with the factory control mechanism in Volkswagen models, maintaining the original performance characteristics of the system.

Specifications and technical data

• SKU: 3G5839461B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3G5839461B
• Substitutable numbers: 3G5839461B, 3G5 839 461 B
• Location on the vehicle: Rear, Left
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The rear left door window regulator in the Passat B8 is responsible for the precise raising and lowering of the window, both from the driver's panel and the door switch. A correctly selected component guarantees smooth window movement, proper guidance in the tracks, and correct integration with the factory electrical installation.

Its location in the rear area, on the driver's side, makes this component important for the comfort of rear passengers and for the sealing of the bodywork in this area. Using a component from the same design group as the original reduces the risk of noise, jamming, or uneven window operation.

Benefits of using an original Volkswagen solution

The regulator designed for the Passat B8 has been engineered for specific door dimensions and body geometry, which translates into:

• precise fitment to the factory mounting points in the rear doors,
• seamless integration with the standard window control system,
• maintenance of the mechanism's speed and operating standards as intended by the manufacturer.

As a result, installation is straightforward, with no need for modifications to the door structure or electrical wiring. This solution is particularly beneficial for post-accident repairs, mechanical damage, or replacing a worn-out mechanism in a daily-driven vehicle.

Installation and operational characteristics

The regulator is designed for installation in the rear left part of the body, which facilitates the identification of the correct part during repair. The design from the Window regulators and motors group allows for maintaining the factory window operation, without changing the ergonomics of use from inside the vehicle.

In practice, this means that after correct installation, the window should move evenly, without play or skipping, and the control system will retain its existing functions. This is important both from the point of view of passenger comfort and for protecting the interior against water or drafts.

Application in service and repairs

A component of this type is often used for:

• repairs following mechanical damage to the window or door,
• eliminating the effects of seizure or wear of the lifting mechanism,
• restoring full functionality of the electric rear window control.

Using a component dedicated to a specific Volkswagen model allows for reducing diagnostic and installation time, and also reduces the risk of repeated interventions in the same area of the bodywork.

If you are planning a comprehensive repair or upgrade of the window opening zone in your Volkswagen and need other elements from the same group, such as guides, lifting mechanisms, or window drives, check the available parts in the Volkswagen window regulators and motors category.

Technical support and service knowledge

When working with electrical systems and body mechanics, it is worth using reliable sources of service knowledge. A good supplement when planning repairs in premium segment cars may be an article describing typical operational problems of engines in a popular model of the Bavarian brand – you can find it here: Troublesome BMW E90 engines: check what can ruin your budget!.