Audi A6 C8 Rear Door Window Lifter Regulator Mechanism Left N/S 4K0839461

The Left Rear Window Regulator Mechanism for Audi A6 C8 is a factory part from the Window Regulators and Motors category, designed for precise operation in the rear left door. The original construction ensures proper window guidance, stable operation throughout the entire range of motion, and compatibility with factory Audi door hardware.

Specifications and technical data

• SKU: 4K0839461
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0839461
• Substitutable numbers: 4K0839461, 4K0 839 461
• Location on the vehicle: Rear, Left
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and Function in Audi A6 C8

This window regulator mechanism has been specifically designed for the rear left side of the Audi A6 C8 generation body, ensuring correct guide geometry and appropriate mounting points. The component is responsible for the smooth raising and lowering of the window, working in conjunction with the factory control motor and the vehicle's electrical system.

Its placement on the vehicle in the rear driver's side allows for consistent operation of all windows in the car, and a correctly selected regulator minimizes the risk of jamming, excessive play, or uneven closing.

Construction and Technical Fitment

The mechanism belongs to the group of elements responsible for guiding and stabilizing the window within the door, utilizing a system of cables, guides, and mounting points optimized for the Audi A6 C8 door structure. This ensures:

• maintaining the window's alignment during up-and-down movement,
• even distribution of loads on the door structure,
• reduction of noise and vibrations during system operation.

Its original Audi origin promotes adherence to factory assembly tolerances, facilitating installation and minimizing the need for additional adjustments after replacement.

Condition, Verification, and Service Application

The part is used, which in service practice often represents a sensible compromise between repair cost and maintaining original manufacturing quality. This type of regulator can be used for both typical replacement of a worn-out mechanism and for post-accident repairs where restoring full functionality to the rear left door is necessary.

For workshops and services specializing in the Audi A6 C8, using an original window regulator mechanism simplifies diagnostics, reduces installation time, and lowers the risk of complaints related to improper window operation after repair.

Benefits of Choosing an Original Mechanism

By choosing this left rear window regulator mechanism, you gain:

• factory fitment for the Audi A6 C8 door structure,
• seamless integration with the electrical system and window controls,
• preservation of the original window operating characteristics – speed, smoothness, and range of motion,
• a solution compliant with the vehicle manufacturer's specifications, useful in professional body and mechanical repairs.

For the end-user, this translates to convenient operation of the window in the rear left door and a reduced risk of needing further service intervention in a short period.

Audi Window Regulators and Motors – Selection and Alternatives

If you are undertaking a more extensive door repair or upgrading the window control system in your Audi, it is also worth considering other components from the same functional group. If you need additional parts related to window drive and guidance for this brand, check the available parts in the Audi Window Regulators and Motors category.

More on the Cost-Effectiveness of Used Components

When planning a repair, the question of whether to buy used parts instead of new ones often arises. Although the described mechanism pertains to the window system, the logic for selecting parts from the secondary market is similar to that for other key components. To better understand cost differences, verification principles, and selection by manufacturer markings, it is worth consulting an expert guide: Why Buying Used Gearboxes and Engines is Worth It – Facts Instead of Myths.