Audi A4 B7 Rear Side Door Window Regulator Motor Module Unit Left N/S 8H0839461A

Audi A4 B7 Rear Side Door Window Regulator Motor Module Unit Left N/S is an original component from the Window regulators and motors group, designed for the precise operation of the rear left door window. It ensures stable operation of the window lifting and lowering mechanism, which translates into user convenience and proper door closing. This is a practical solution for drivers who want to restore the full functionality of the factory window system in their Audi.

Specifications and technical data

• SKU: 8H0839461A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0839461A
• Substitutable numbers: 8H0839461A, 8H0 839 461 A
• Location on the vehicle: Rear, Left
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window regulator motor has been designed to operate in the rear left door area, where it is responsible for driving the window lifting and lowering mechanism. Thanks to its dedicated placement in the vehicle, the system works with the factory electrical installation and controls from the driver's panel and the button in the rear passenger door. This component is particularly important for:

• ensuring smooth window movement without jerking,
• maintaining proper window pressure against the seals,
• preserving acoustic comfort inside the cabin,
• efficient operation of the central window control system.

Benefits of using an original Audi motor

Choosing an original window regulator motor for an Audi allows you to maintain the factory operating parameters of the system. The design is matched to the door geometry and the characteristics of the guide mechanism, which minimizes the risk of overloads and accelerated wear of other components. Key advantages include:

• compatibility with factory equipment – no need for modifications to the installation or mounts,
• consistency with the window control system and electrical protections,
• maintaining predictable operating characteristics, in accordance with the vehicle manufacturer's specifications.

Application in service and repairs

The rear left window regulator motor will prove useful both for a typical replacement of a damaged drive and for more extensive service work within the door. This is a particularly useful solution in the case of symptoms such as the window stopping halfway, no reaction to control buttons, or irregular mechanism operation. In practice, installing this component allows you to:

• restore full functionality of the electric window control,
• reduce the load on the electrical system thanks to correct operating parameters,
• maintain consistent operation of all windows in the vehicle.

Condition and origin of the component

The offered motor comes from an Audi vehicle and is a secondary market component, which represents a reasonable compromise between quality and repair cost. This type of solution is often chosen by workshops specializing in the Audi brand and users who prefer original components over replacements of unknown origin.

Audi window regulators and motors – expansion and service

If you are planning a comprehensive repair or upgrade of the door zone in your Audi and need other elements from the same group, such as front window drives, guide mechanisms, or additional control motors, check the available parts in the Audi window regulators and motors category.

Technical support and knowledge about the VAG group

For users interested in a broader context of operating VAG group vehicles and repair possibilities using original dismantled components, material comparing popular power units and the approach to service using used parts may be useful. More information can be found in the article VAG group engines - a comparison of popular TSI and TDI engines and repair possibilities using original dismantled parts.