Audi TT 8N Door Window Lifter Regulator Motor Front Right O/S 8N8959802D

Audi TT 8N Door Window Lifter Regulator Motor Front Right O/S is an original component from the Window regulators and motors group, designed to control the movement of the front passenger-side window. This used component ensures a factory fit, maintaining the correct operating geometry of the mechanism and stable electrical parameters, which translates into reliable operation of the window lifting system.

Specifications and technical data

• SKU: 8N8959802D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8N8959802D
• Substitutable numbers: 8N8959802D, 8N8 959 802 D, a 8N8 959 802 E, a8N8959802E, 8N8 959 802 E, 8N8959802
• Location on the vehicle: Front, Right
• Part type: Window Motor
• Category: Window Motors & Regulators

Purpose and vehicle placement

The window lifter motor is designed for installation in the front right door of the first-generation Audi TT (8N). Its placement in the passenger door area means it is responsible for precise vertical window movement control, working in conjunction with the rails and support mechanism. Thanks to its dedicated design, proper operating kinematics are maintained, reducing the risk of jamming or uneven closing.

Construction and operating characteristics

The window lifter motor in this model is an electric drive that works with the lifting mechanism, transferring torque to the window guide components. The design provided by the manufacturer ensures:

• stable operation across the full range of window movement,
• appropriately calibrated lifting and lowering speed,
• compatibility with the factory door electrical installation,
• proper cooperation with the window control switch in the cabin. By maintaining the original electrical and mechanical specifications, the motor does not require adaptation or installation modifications, which simplifies assembly and reduces the time required for repairs.

Practical application and benefits of installation

Using this window lifter motor allows for the restoration of full functionality of the passenger-side window control. This is particularly important in cases of symptoms such as the window stopping halfway, no response to the switch, or irregular mechanism operation. Replacing it with an original element from the same design group ensures:

• consistency with the factory comfort system,
• proper window sealing in the top position,
• reduced load on the guide mechanism,
• maintenance of the proper noise level during operation. For the user, this means more convenient vehicle use, and for the workshop – predictable assembly time and a lower risk of complaints related to non-original fitment.

Condition, origin, and part number selection

The offered window lifter motor is a used part, sourced from dismantling, which allows for combining factory fitment with an attractive price compared to new replacements. The component retains the original manufacturer's specifications, making it suitable for use as a replacement in service repairs and for restoring the completeness of door equipment. When selecting this type of component, it is crucial to compare the part number and interchangeable numbers with the vehicle documentation or the markings on the old part. Proper matching based on technical identifiers minimizes the risk of incompatibility with the electrical installation and the window guide mechanism. If you want to better understand how to safely choose components from the secondary market and what to look for when verifying markings, it is worth reading the guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The selection procedures based on OEM numbers contained therein can also be practically applied to other subassemblies, such as window lifter motors.

Audi window regulators and motors – expansion and door area service

If you are planning a comprehensive repair or upgrade of the door area in your Audi and need other elements from the same group, such as window drives, control modules, or additional guide mechanisms, check the available parts in the Audi window regulators and motors category. When deciding between a refurbished part and a used original, the expert material may also be helpful: Refurbished or used original – which part to choose for repair?, which discusses the practical cost and operational differences between these solutions.