Lifter Motor Audi A4 B8 Rear Left N/S Door Window Drive Motor 8K0959811A

Audi A4 B8 Window Regulator Motor Left Rear Used Part is an item from the Window Regulators and Motors category, designed for the rear left window in Audi vehicles. It enables stable, smooth operation of the window lifting and lowering mechanism, ensuring user comfort and proper functioning of the door's electrical system. Thanks to its factory-designed fit for the specific model, the motor integrates with the vehicle's system without requiring modifications.

Specifications and technical data

• SKU: 8K0959811A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0959811A
• Substitutable numbers: 8K0959811A, 919812-200
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Vehicle Application and Placement

The presented window regulator motor is designed for installation in the rear left door of the Audi A4 B8 generation. Its placement in the vehicle is factory-determined, minimizing the risk of selection errors and facilitating service work. Correct fitting to the specific side of the body translates to proper mechanism operating geometry and correct functioning of the limit switches and door panel controls.

Function in the Window Lifting System

The motor is responsible for driving the window regulator mechanism, working in conjunction with the gearbox and the door's electrical system. In practice, this means:

• providing adequate torque for smooth window movement within the guides,
• cooperating with the factory comfort control and anti-pinch protection (if present in the specific vehicle configuration),
• stable operation during multiple window lifting and lowering cycles in daily use.

Thanks to its design intended for Audi, the motor maintains proper operating parameters, reducing the load on the electrical system and door mechanics.

Benefits of Using an Original Audi Solution

Choosing a part specifically designed for the Audi A4 B8 from the Window Regulators and Motors category ensures consistency within the entire body system. The most significant advantages include:

• factory fit to the mountings and door geometry on the rear left side,
• compatibility with the wiring harness and control units used in this model,
• maintaining the window's operating characteristics as intended by the manufacturer, without unwanted vibrations or jerks.

This solution is particularly beneficial for repairs where parameter repeatability and reduced installation time are crucial.

Item Condition and Service Application

The window regulator motor is offered as a used part, providing an attractive service solution for operational repairs or post-collision restoration. This type of component allows for reduced costs in restoring the window lifting system's functionality while maintaining compliance with the factory Audi specifications. It is suitable for workshops specializing in the brand as well as independent service centers seeking a reasonable compromise between price and technical fit.

Part Selection by Numbers and Additional Resources

When selecting a window regulator motor for the Audi A4 B8, it is advisable to use manufacturer designations and interchangeable part numbers to ensure full compatibility with the specific equipment version. In case of doubt, comparing data with vehicle documentation or consulting a parts catalog is helpful in reducing the risk of purchasing the wrong part.

If you are considering whether original, aftermarket, or used parts would be a better choice for your needs, you can find a practical comparison of solutions in the article Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?, which discusses differences in cost, quality, and fit.

Although the described motor is for an Audi, the topic of engine durability and repair costs may also be relevant for users of other brands. If you are interested in common engine problems in a popular BMW model, check out the guide Common BMW E90 Engine Failures: Find Out What Can Ruin Your Budget!, which shows how to consciously plan for service expenses.

If you also need other parts from the window drive category for this brand, for example, for a comprehensive door repair or comfort system upgrade, check the available parts in the Audi Window Regulators and Motors category.