Audi A5 8T Window Lifter Rear Door Right O/S Regulator Mechanism 8T8839462C

Audi A5 8T Window Lifter Rear Door Right O/S Regulator Mechanism is an original component from the Window regulators and motors group, designed for the rear right side of the vehicle body. It ensures stable window guidance, correct raising and lowering, and proper integration with the factory electric control system in the Audi A5 8T. By maintaining the OEM design, it provides a reliable solution for repairing or replacing a damaged mechanism.

Specifications and technical data

• SKU: 8T8839462C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8T8839462C
• Substitutable numbers: 8T8839462C, 8T8 839 462 C
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented mechanism operates in the area of the rear right side window, responsible for the smooth and controlled movement of the glass within the guides. It is a key element of the lifting system that:

• ensures proper positioning of the window relative to the seals,
• minimizes the risk of jamming and misalignment during operation,
• maintains window stability when the door is closed and while driving.

Thanks to its fitment for a specific side of the body, the mechanism works in harmony with the door geometry and factory mounting points, which facilitates installation and reduces the need for additional modifications.

Construction and fitment for Audi

The mechanism was designed by Audi with integration into the factory window control system in mind. This means maintaining the correct gear ratios, range of motion, and operating characteristics consistent with the original specifications of the A5 8T model. The design provides for cooperation with standard door equipment so as to:

• maintain compatibility with factory upholstery mounts,
• maintain proper window sealing relative to the bodywork,
• ensure predictable operation throughout the full range of opening and closing.

Such fitment is particularly important in cars with frameless windows, where precision of adjustment affects acoustic comfort and interior sealing.

Condition of the component and benefits of using OEM parts

The offered mechanism comes from the used parts group, which allows for combining reasonable repair costs with the preservation of the original Audi design. In practice, this means:

• preservation of factory geometry and mounting points,
• no need for electrical system adaptation,
• consistency of operation with other window system components.

Choosing an original solution is particularly beneficial where compliance with service documentation and predictable lifter behavior during long-term operation are important.

Why it is worth using a dedicated window lifter mechanism

Using the correct mechanism for the rear right window in the Audi A5 8T allows for restoring full system functionality without compromising on user comfort. A well-chosen component:

• eliminates problems with the window not closing properly or dropping,
• reduces cabin noise resulting from leaks,
• ensures proper cooperation with factory control buttons.

For workshops and individual users, this means faster diagnostics, easier installation, and a lower risk of complaints after the repair is completed.

If you are planning a comprehensive repair or upgrade of the side window area in your Audi and need other elements from the same group, such as guides, control motors, or complete lifting assemblies, check the available parts in the Audi window regulators and motors category.

Technical support and service knowledge

When selecting components for window systems and other sub-assemblies, it is worth relying on reliable knowledge about typical faults and repair costs. A good supplement when planning service might be reading the article Emergency BMW E90 motors: check what can ruin your budget!, which shows how important a conscious approach to choosing parts and diagnosing problems in modern cars is.