Audi Q3 8U Window Lifter Regulator Unit Rear Left N/S 8U0839461

The Audi Q3 8U Rear Left Window Regulator is an original part from the Window Regulators and Motors group, designed for the rear left window of the Audi Q3 8U generation. This used regulator ensures a factory fit, maintaining the correct window guide geometry and stable operation of the lifting and lowering mechanism.

Specifications and technical data

• SKU: 8U0839461
• Mark: Audi
• Condition: Used
• OEM Part Number: 8U0839461
• Substitutable numbers: 8U0839461, 8U0 839 461
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and Fitment

This regulator is specifically designed for installation in the rear left side of the Audi Q3 8U body. It is responsible for precise window guidance within the tracks and for transferring the drive from the control system to the window, resulting in smooth opening and closing of the window during daily use.

Thanks to its design, which is consistent with Audi's factory solutions, the part retains the correct mounting points and operating kinematics, facilitating installation and reducing the risk of incorrect window alignment with the seals and door frame.

Function in the Window Lifting System

The window regulator works in conjunction with the electric window control system, responsible for:

• stable vertical guidance of the glass pane,
• even load distribution during window movement,
• maintaining proper window pressure against the seals when closed,
• reducing play and vibrations while driving.

A functional mechanism in the rear left part of the body contributes to the cabin's acoustic comfort, proper door closure, and the correct operation of the central window control system.

Application of a Used Part

Choosing a used window regulator for your Audi allows you to maintain the vehicle's original specifications while optimizing repair costs. A dismantled part, originating from the same model line, retains compatibility with the factory door hardware, electrical harness, and comfort modules.

If you are also considering purchasing used powertrain components, such as engines or transmissions, it is worth consulting an expert guide discussing selection by identification numbers, condition verification, and the cost-effectiveness of such solutions: Why Buy Used Gearboxes and Engines – Facts Instead of Myths.

Audi Window Regulators and Motors – Expansion and Service

When working on the window system in an Audi Q3, it is common to simultaneously service other components responsible for window operation comfort, such as guides, drive mechanisms, or control units. If you are planning a comprehensive repair or upgrade of the door and window area in your Audi and require other parts from the same group, such as additional regulators, drives, or guide mechanisms, check the available parts in the Audi Window Regulators and Motors category.

Benefits of Using an Original Regulator

Using an original window regulator in the Audi Q3 8U offers several practical benefits:

• Factory Fitment – maintaining correct mounting points and operating range of the mechanism.
• Electrical System Compatibility – proper cooperation with control buttons and the comfort module.
• Stable Window Operation – reducing jamming, skipping, and excessive play in the guides.
• Maintaining Sealing – correct window closure supports interior protection against noise and moisture.

As a result, the Audi Q3 8U Rear Left Window Regulator is a functional service solution, allowing for the restoration of proper operation of the rear left window while adhering to manufacturer standards.