Audi A4 B9 Front Door Window Lifter Mechanism Motor Right O/S 8W0959802

Audi A4 B9 Front Door Window Lifter Mechanism Motor Right O/S is an original component from the Window regulators and motors group, designed for the precise operation of the window in the front right door. It ensures stable operation of the window lifting and lowering mechanism, which translates into user comfort and proper door closing in your Audi.

Specifications and technical data

• SKU: 8W0959802
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0959802
• Substitutable numbers: 8W0959802, 8W0 959 802
• Location on the vehicle: Front, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented motor is dedicated for installation in the front – right side area, where it is responsible for driving the window lifter mechanism. As a component of the comfort system, it works with the vehicle's electrical installation, enabling smooth window control from the door panel or the driver's console.

Thanks to the proper fit to the Audi A4 B9 door structure, the component ensures:

• stable window movement throughout the full range of operation,
• proper cooperation with guides and seals,
• consistency with the factory comfort control system.

Benefits of using an original motor

Using an original window lifter motor in an Audi allows you to maintain the factory operating parameters of the window system. The appropriate torque characteristics and electrical matching reduce the risk of overloads, jams, or uneven window movement.

Key advantages of this solution include:

• Compatibility with Audi installation – no need for wiring or mounting modifications.
• Consistency with factory electronics – correct cooperation with control modules and comfort functions.
• Proper mechanical fit to the front door structure on the right side.

Condition and service application

The motor comes from the used parts group, which makes it an attractive solution for maintenance repairs and restoring the efficiency of the window system after a failure. This type of element is particularly useful when the vehicle shows symptoms such as the window stopping halfway, no response to control buttons, or irregular mechanism operation.

Replacing the window lifter motor is an effective way to restore full functionality to the passenger door without the need to interfere with other components of the comfort system.

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 elements from the same group, such as window drives in other doors, guide mechanisms, or additional control modules, check the available parts in the Audi Window regulators and motors category.

Service knowledge and operation

When working with electrics and mechanics in modern cars, it is worth knowing the typical weak points of individual models. For comparison with other brands and drive unit designs, you can use the advice contained in the article Emergency BMW E90 engines: check what can ruin your budget, which shows how proper diagnostics and part selection affect the costs of maintaining a car in the long term.