VW Golf Plus Door Window Lifter Motor Regulator Rear Right O/S 5M0839402B

VW Golf Plus Door Window Lifter Motor Regulator Rear Right O/S is an original component from the Window regulators and motors group, designed for the precise operation of the window in the rear right door. It ensures stable operation of the window lifting and lowering mechanism, which translates into ease of use and proper window sealing during daily operation. This is a practical solution for drivers who want to restore full functionality to the rear window without compromising on body fitment.

Specifications and technical data

• SKU: 5M0839402B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5M0839402B
• Substitutable numbers: 5M0839402B, 5M0 839 402 B
• Location on the vehicle: Rear, Right
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The motor is designed to operate in the rear right window area, where it is responsible for driving the lifter mechanism. Its task is to smoothly transfer torque to the lifter gear so that the window moves evenly across the entire range of the guides. Thanks to its proper fit to the VW Golf Plus door structure, the component works with the factory mounts and the vehicle's electrical system. The placement on the vehicle is factory-specified as the rear right door, which minimizes the risk of installation problems and eliminates the need for wiring or bracket modifications. This is especially important for repairs where time and maintaining the original geometry of the window operation are critical.

Construction and fitment to the window system

The window lifter motor is part of the electric window control system, working with the door switches and the central comfort control unit. The design provided by the vehicle manufacturer ensures:

• proper positioning relative to the window guides,
• correct power transmission to the lifter mechanism,
• compatibility with factory electrical connectors,
• stable operation under typical door interior operating conditions. As a result, the installation process is straightforward, and once installed, the motor works with the existing control system without the need for additional modifications. This solution is particularly beneficial for workshops looking to reduce diagnostic and part-fitting time.

Benefits of using an original motor

Using a dedicated motor in the rear right window allows you to restore proper window operation after a failure or wear of the previous component. Key advantages include:

• factory fit to the door – compliance with the body structure and window guides,
• consistency with the vehicle's electrical system,
• maintenance of original window control functionality,
• ability to use existing mounting points in the door. Such a solution reduces the risk of improper window operation, mechanism jamming, or overloading the electrical system. For the user, this means convenient window control and maintaining driving comfort at the level intended by the manufacturer.

Component condition and economic aspect

The offered motor comes from the used parts segment, which allows for a significant reduction in repair costs compared to purchasing a new component, while maintaining the original design and fitment. It is a sensible choice for drivers and workshops looking for a compromise between quality and budget, especially during comprehensive work within the door and electrical equipment. If you want to better understand how to safely use components from the secondary market and what professional component selection by identification numbers looks like, the following expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. The procedures and examples contained therein can be analogously applied to other electrical and drivetrain components in the vehicle.

Expanding the window system in your Volkswagen

If you are planning a comprehensive repair or upgrade of the door and window area in your Volkswagen and need other elements from the same group, such as additional motors, regulators, or complete lifter mechanisms, check out the available parts in the Volkswagen window regulators and motors category. By using components from the same functional group, you can maintain the consistency of the entire window system, which facilitates diagnostics, service, and subsequent vehicle operation. This is particularly important in cars where window control is integrated with the comfort system and anti-pinch protection.