Audi A8 S8 D3 Window Lifter Motor Regulator Rear Right O/S 4E0959802D

Audi A8 S8 D3 Window Lifter Motor Regulator Rear Right O/S is an original component from the Window regulators and motors group, designed for operating the rear right window in luxury Audi A8 and S8 D3 generation models. It ensures stable, repeatable operation of the window lifting and lowering mechanism, which translates into user comfort and proper window closing during daily use.

Specifications and technical data

• SKU: 4E0959802D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4E0959802D
• Substitutable numbers: 4E0959802D, 4E0 959 802 D
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window lifter motor is designed for installation in the rear right part of the body, where it is responsible for driving the window mechanism in the passenger door. As a component of the comfort system, it works with the factory electrical installation and window controls, enabling smooth opening and closing of the window from the driver's panel or the door button.

Thanks to its precise design and fitment for the specific Audi A8/S8 D3 generation, the motor ensures correct operating geometry with the lifter rails and cables, which reduces the risk of jamming, uneven movement, or system overloads.

Benefits of using an original motor

Using an original window lifter motor in an Audi A8 or S8 D3 allows for maintaining consistency with the factory comfort system and vehicle electronics. This is particularly important in high-end vehicles, where window control systems are integrated with comfort modules, anti-pinch protection, and window closing functions.

• secure fitment to the factory door mounting,
• proper cooperation with the original window lifter,
• stable operation during repeated lifting and lowering cycles,
• maintenance of acoustic comfort inside the vehicle.

For the user, this means predictable window operation, the absence of unwanted mechanism noises, and a lower risk of electrical system overload.

Installation characteristics

The motor is intended for installation in the rear right part of the vehicle, which facilitates the identification of the correct installation location during repair. The design, intended for cooperation with the factory window lifter, allows for installation in place of a worn-out component without the need for modifying the door structure.

When replacing, it is recommended to pay attention to the correct routing of the electrical harness and proper tightening of the mounting points to ensure even operation of the mechanism and avoid additional stress in the system.

Product condition and practical application

The offered motor comes from the secondary market, which is a reasonable compromise between repair costs and maintaining the original vehicle specification. For Audi A8 and S8 D3 owners, this is a solution that allows restoring full functionality of the rear right window without the need to invest in a new part from an authorized dealer.

It works well both for typical replacement of a worn-out motor and for comprehensive door renovation, including seals, rails, and soundproofing elements.

Audi window regulators and motors – expansion and service

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

Technical support and knowledge for the driver

When planning repairs of electrical systems and accessories in a car, it is worth knowing the typical weak points of individual models. A good supplement to knowledge about the operation of premium vehicles can be an article devoted to problematic power units in a popular model of the Bavarian brand – you can find it here: Faulty BMW E90 engines: check what can ruin your budget!. Although it concerns a different manufacturer, it shows a practical approach to diagnosis and service cost planning.