Audi A4 B7 Window Lifter Motor Door Front Left N/S Regulator Drive 8E2959801E

Audi A4 B7 Window Lifter Motor Door Front Left N/S Regulator Drive is a factory component from the Window regulators and motors group, designed for the precise operation of the window in the front left door. It enables stable, smooth operation of the window lifting and lowering mechanism, restoring full functionality to the driver's side window control.

Specifications and technical data

• SKU: 8E2959801E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E2959801E
• Substitutable numbers: 8E2959801E, 8E2 959 801 E, 105998 204, 105848 204, 5WK4 9204CBF
• Location on the vehicle: Front, Left
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window lifter motor is dedicated for installation in the front left door of the Audi A4 B7 generation. It is responsible for driving the window lifting mechanism, working in conjunction with the factory door control system. Thanks to its precise fit to the door structure, it ensures:

• correct window guidance in the rails,
• stable operation across the full range of motion,
• proper response to signals from the control buttons.

Its location in the driver's door zone makes it an essential element for daily vehicle comfort, especially in city traffic and when using windows frequently.

Construction and fitment for Audi A4 B7

The motor has been designed as part of the original window drive system in the Audi, which translates into a proper fit with the factory lifter mechanism and electrical harness. The design intended for a specific vehicle location reduces the risk of installation issues and eliminates the need for wiring modifications.

As an element from the Window regulators and motors group, it works with factory rails, cables, and door controls, maintaining operating parameters in accordance with the vehicle manufacturer's specifications.

Benefits of using an original lifter motor

Using a dedicated window lifter motor in the Audi A4 B7 allows for restoring proper window operation after a failure or wear of the previous component. In practice, this means:

• reliable opening and closing of the window without jerking,
• maintaining control functionality from the driver's door panel,
• reducing the risk of electrical system overload.

For workshops and users, it is also important that the part has an assigned OEM number and interchangeable numbers, which facilitates clear identification and selection for a specific vehicle configuration.

Condition and service application

The offered window lifter motor is a used component, making it an attractive solution for repairs where reasonable cost is important while maintaining compliance with factory specifications. It is suitable for both routine repairs and restoring full door functionality after a collision or bodywork intervention.

Due to its precise fit for the front left side of the vehicle, it is recommended as a replacement for a damaged drive in the Audi A4 B7, without the need to modify mounts or the electrical installation.

Related components and technical knowledge

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 diagnosing drive and electrical system faults in modern cars, it is worth knowing the typical design problems of individual models – you can find a practical look at the failure rates of power units in the article Faulty BMW E90 engines: check what can ruin your budget!, which shows how to consciously approach service costs and repair planning.