Audi A8 S8 D3 Door Window Regulator Lifter Carrier Rear Left N/S 4E0839461C

The Audi A8 / S8 D3 Rear Left Door Window Regulator is an original part from the Window Regulators and Motors group, designed for installation on the rear left side. It ensures stable window guidance, proper mechanism operation, and maintains the factory functionality of window control in luxury Audi A8 and S8 D3 models.

Specifications and technical data

• SKU: 4E0839461C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4E0839461C
• Substitutable numbers: 4E0839461C, 4E0 839 461 C
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Vehicle Application and Function

The presented window regulator is responsible for the precise lifting and lowering of the window in the rear left door, working in conjunction with the factory electric control system. Its design is tailored to the geometry of the Audi A8 / S8 D3 doors, allowing for proper window guidance, reducing play, and minimizing the risk of jamming during operation.

Thanks to the use of an original mounting solution, this component allows for consistency with other door components such as seals, guides, and the control module. This is particularly important in premium vehicles where the comfort of side window operation and the refinement of mechanism performance directly impact the perceived quality of use.

Construction and Fitment for Audi A8 / S8 D3

The regulator has been specifically designed for the Audi A8 / S8 D3 platform, which translates to correct mounting points, appropriate cable lengths, and compatibility with the factory window motor. This ensures a straightforward installation without the need for modifications or adapters.

Key construction features of this component include:

• dedicated placement in the rear left section of the body,
• compatibility with the factory electric window control system,
• maintenance of proper window guidance geometry within the door.

This precise fitment helps maintain the technical integrity of the entire window system and reduces the risk of improper operation after part replacement.

Benefits of Using an Original Window Regulator

Using an original window regulator for the Audi A8 / S8 D3 offers a range of practical operational benefits. The most important include:

• maintaining factory operating parameters for the window lifting mechanism,
• correct cooperation with the existing electrical system and door controls,
• reduction of noise and vibrations during window operation,
• lower risk of recurring failures due to part incompatibility.

For owners who value the comfort and build quality characteristic of Audi, choosing such a solution is a way to maintain a high standard of door mechanism performance without compromise.

Vehicle Placement and Installation Aspects

The component is intended for installation in the rear left section of the body, within the rear passenger door. This clear identification of placement simplifies selecting the correct component during repairs and minimizes the risk of ordering errors.

During installation, it is important to follow the correct sequence for removing door trim, disconnecting the electrical system, and properly positioning the window in its guides. Due to its design conforming to factory specifications, the regulator allows for near plug-and-play installation, which reduces service time and facilitates final functional checks of the mechanism.

Audi Window Regulators and Motors – Expansion and Service

If you are planning a comprehensive repair or upgrade of the door and side window area in your Audi and require other parts from the same group, such as guides, lifting mechanisms, or electric drives, check the available parts in the Audi Window Regulators and Motors category.

Used Components and Repair Cost-Effectiveness

For components like window regulators, choosing a used part often represents a sensible compromise between cost and functionality. Original used solutions allow for maintaining high build quality at a lower financial outlay, which is particularly important when servicing higher-class vehicles.

If you want to better understand how to approach the purchase of used components for a car, including selection criteria based on manufacturer markings and methods for assessing repair cost-effectiveness, it is worth reading the guide Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which broadly covers the topic of informed used part selection.

For Audi owners interested in a wider use of second-hand components – for both repairs and modifications – the article Audi on Second-Hand Parts – Tuning and Repairs Without Quality Loss may also be helpful, showing how to combine savings with maintaining the brand's characteristic quality.