Door Window Lifter Motor Audi A4 B8 A5 8T Control Unit Front Right O/S 8K0959802

Door Window Lifter Motor Audi A4 B8 A5 8T Control Unit Front Right O/S is an original component from the Window regulators and motors group, designed to control the window in the front right door. It ensures stable operation of the window lifting and lowering mechanism, which translates into ease of use and proper window sealing in everyday operation.

Specifications and technical data

• SKU: 8K0959802
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0959802
• Substitutable numbers: 8K0959802, 8K0 959 802
• Location on the vehicle: Front, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window lifter motor is dedicated for installation in the front right part of the body, in the passenger door. It is responsible for driving the window lifting mechanism, working in conjunction with the factory electrical installation and cabin controls. Thanks to the precise fit for the Audi A4 B8 and Audi A5 8T platform, the correct window operating geometry is maintained, which reduces the risk of jamming and uneven movement.

Benefits of using an original motor

Using an original window lifter motor in an Audi allows you to maintain consistent operating parameters with other door system components. The appropriate torque and rotational speed characteristics ensure smooth opening and closing of the window, without excessive load on the guides and cables. This solution is particularly beneficial for frequent vehicle use, where operational repeatability and predictable system behavior are essential.

The element from the Window regulators and motors category is also important from the point of view of acoustic comfort – a properly functioning drive reduces unwanted noises during window movement and helps maintain proper door sealing.

Condition, fitment, and installation aspects

The window lifter motor is offered as a used part, which allows for an economical repair of the window lifting system while maintaining the manufacturer's original specifications. Thanks to its factory design for a specific vehicle location, the installation process is straightforward – the mounting points and electrical connectors are compatible with the factory door wiring harness.

Before installation, it is recommended to verify compatibility with the vehicle based on the OEM part number and interchangeable numbers visible in the technical specification. This approach minimizes the risk of selecting the wrong variant and shortens service time.

How to select the correct window lifter motor

To select the appropriate window lifter motor for an Audi A4 B8 or Audi A5 8T, it is worth using the data from the old component's label or the vehicle documentation. It is crucial to consider the installation side (front, right) and compatibility with the electrical system used in the specific vehicle. If in doubt, comparing the shape of the housing, the type of connector, and the layout of the mounting points with the currently installed component can be helpful.

Additional support when selecting drive components and power units can be found in the expert guide on used components, available in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which describes, among other things, practical procedures for selection by OEM numbers.

Expanding Audi window system upgrades

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

When planning broader work related to body electronics, it is also worth reading the guide on used modules and controllers, described in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses best practices for selecting and verifying electronic components in vehicles.