Audi A6 C6 Door Window Lifter Regulator Unit Rear Left N/S 4F0839461

Audi A6 C6 Door Window Lifter Regulator Unit Rear Left N/S is an original component from the Window regulators and motors group, designed for operating the rear left window in the Audi body. This used window regulator ensures a factory fit, maintaining proper window guidance geometry and stable operation with the control mechanism.

Specifications and technical data

• SKU: 4F0839461
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0839461
• Substitutable numbers: 4F0839461, 4F0 839 461
• Location on the vehicle: Rear, Left
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function of the window regulator

The presented window regulator is dedicated for installation in the rear left part of the Audi A6 C6 body, where it is responsible for the precise raising and lowering of the window. The design has been engineered to maintain the correct window travel path, which reduces the risk of jamming, excessive play, or leaks at the seal contact points.

Thanks to its factory origin, the component works seamlessly with the original window control system, maintaining appropriate movement speed and operational smoothness. This is particularly important for vehicles equipped with electric window controls, where repeatability of the mechanism's operating parameters is required.

Construction and fitment for Audi A6 C6

The window regulator has been constructed with the Audi A6 C6 body in mind, which translates into proper placement of mounting points and compatibility with factory guides and the window glass. The appropriate shaping of the arms and guides ensures stable window movement throughout the entire range of motion.

The original Audi brand origin means maintaining the vehicle manufacturer's quality standards, including fitment to factory mounting holes and electrical harnesses (in the case of cooperation with a motor). As a result, installation can be carried out without structural modifications to the door.

Benefits of using an original window regulator

Using an original window regulator in an Audi A6 C6 helps to limit typical problems encountered with aftermarket replacements, such as improper fitment, accelerated wear of guides, or noisy operation. The element from this group is designed for long-term operation in the demanding conditions found inside the door (moisture, temperature changes, vibrations).

The main advantages include:

• factory fitment to the Audi A6 C6 door structure,
• stable window guidance throughout the entire range of motion,
• maintenance of correct cooperation with the window control system,
• reduction of the risk of leaks and improper window closing.

Application in service practice

The rear left window regulator is often replaced in the event of symptoms such as uneven window lifting, jamming halfway through the range, the window dropping after closing, or distinct knocking from inside the door. Replacing it with an original element from the Window regulators and motors group allows for restoring the proper operation of the mechanism without the need for interfering with the door structure.

Due to its used condition, the component is a cost-effective solution for users who want to maintain the vehicle's factory specification while optimizing repair costs. It is a sensible choice for comprehensive service work within the rear door, especially when only the window lifting mechanism has failed.

Audi window regulators and motors – expansion and modernization

If you are planning a comprehensive repair or modernization of the door area in your Audi and need other elements from the same group, such as window lifting mechanisms, electric drives, or complete guide assemblies, check out the available parts in the Audi window regulators and motors category.

More about selecting used components

When choosing used body elements and accessories, it is worth being guided not only by price but also by the origin of the part and its compliance with the vehicle's factory specification. In the case of more complex components, such as engines or gearboxes, correct matching based on manufacturer markings and technical documentation is key – this is discussed in more detail in the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which organizes the most important principles for selecting used components.

If you are interested in a broader context regarding the use of used parts in German cars, including Audi models, practical tips on which components are worth buying second-hand and which are better to avoid can be found in the article Renovation and repair of German cars: which used parts are worth buying and which are better to give up on?.