Audi Q7 4M Door Window Regulator Mechanism Rear Right O/S 4H0839462A

Rear Right Window Regulator Mechanism for Audi Q7 4M is an original part from the Window Regulators and Motors group, designed for precise operation in the rear right body area. It ensures stable window guidance, proper closing, and repeatable system performance, which translates to user comfort and correct operation of the electric window control in your Audi.

Specifications and technical data

• SKU: 4H0839462A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0839462A
• Substitutable numbers: 4H0839462A, 4H0 839 462 A, 4H0839462B, 4H0 839 462 B
• Location on the vehicle: Rear, Right
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and Fitment for Audi Q7

The presented mechanism has been specifically designed for the rear right window in the Audi Q7 4M generation model. It is responsible for transferring the drive from the regulator motor to the window guides, ensuring smooth movement throughout its operating range. Thanks to the factory Audi design, proper mounting points, guide geometry, and compatibility with factory door hardware are maintained.

Its placement in the rear right part of the vehicle allows for direct identification of the component during repair – it is the correct choice when the window in this area moves jerkily, gets stuck, or stops responding to commands from the control panel.

Function and Performance Parameters

The regulator mechanism is responsible for:

• stable window guidance in the door channels,
• transferring torque from the motor to the vertical window movement,
• holding the window in the set position without unwanted play,
• cooperation with the factory window control system in Audi.

Thanks to a design compliant with the vehicle manufacturer's requirements, appropriate system rigidity is maintained, which reduces the risk of window misalignment, excessive vibrations, and noise during driving. This is particularly important in a large SUV like the Audi Q7, where interior acoustic comfort is of great significance.

Original Origin and Condition

The mechanism comes from the Audi production line, which means factory manufacturing standards, material quality, and full compatibility with the door construction are maintained. As a used part, it has been verified for installation suitability, making it a sensible choice for repairing the window system without the need to invest in a new set.

Choosing an original part from disassembly allows for maintaining the vehicle's technical consistency, avoiding fitting issues, and reducing the risk of accelerated wear resulting from imprecise fitment of aftermarket alternatives.

Benefits of Using an Original Mechanism

Using this component in the rear right window of the Audi Q7 4M offers a range of practical benefits:

• Factory Fitment – compatibility with Audi door construction and window control system.
• Stable Window Operation – reduced sticking, play, and unwanted noises during raising and lowering.
• Hassle-Free Installation – manufacturer-intended mounting points and guide geometry.
• Optimal Cost-Effectiveness – used OEM part as an economical alternative to a new component.

This solution is particularly recommended in situations where the cables, guides, or the entire mechanism have been damaged due to wear and tear, corrosion, or system overload.

Audi Window Regulators and Motors – Expansion and Service

If you are planning a comprehensive repair or modernization of the door and window area in your Audi and need other parts from the same group, such as guides, regulator motors, or complete window mechanisms, check the available parts in the category Audi Window Regulators and Motors.

Technical Support and Operational Knowledge

When servicing window systems, locks, or other body mechanisms, it is advisable to simultaneously ensure the condition of the drive unit and key components to avoid unexpected expenses. Practical tips on common faults and costly breakdowns can be found in the article: BMW E90 Faulty Engines: Find Out What Can Ruin Your Budget!, which shows the importance of prevention and informed part selection, even in other car models.