VW Tiguan AX1 Rear Door Glass Window Regulator Mechanism Left N/S 5NA839461C

VW Tiguan AX1 Rear Door Glass Window Regulator Mechanism Left N/S is an original component from the Window regulators and motors group, designed for the rear left side of the vehicle body. It ensures stable window operation, proper guidance along the rails, and repeatable, safe performance of the lifting and lowering system. This solution is dedicated to Volkswagen construction, allowing for the maintenance of factory operating parameters of the mechanism.

Specifications and technical data

• SKU: 5NA839461C
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5NA839461C
• Substitutable numbers: 5NA839461C, 5NA 839 461 C
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The window regulator mechanism in the rear left part of the body is responsible for transferring the drive from the control system to the door glass. In practice, this means:

• smooth lifting and lowering of the rear driver-side window,
• maintaining the correct position of the glass in the rails,
• reducing play and unwanted vibrations while driving,
• maintaining cabin tightness and acoustic comfort.

Thanks to its fitment for a specific mounting position in the body, the component works with factory mounting points and original door equipment.

Compatibility and fitment for VW Tiguan AX1

The presented mechanism has been designed with the construction of the rear left door of the Tiguan AX1 model in mind. This means that the geometry of the arms, the arrangement of the mounts, and the cable routing method are adapted to the factory door panel and the stock window.

Such fitment translates into:

• easier installation in place of the worn-out component,
• no need for bodywork or adaptive modifications,
• preservation of the original window movement kinematics.

Combined with factory door equipment, the mechanism allows for restoring full functionality of the window control on the rear left side.

Performance characteristics and advantages of the OEM solution

As a component from the Window regulators and motors group, the mechanism operates in demanding conditions – it is exposed to temperature changes, moisture, and frequent operating cycles. The use of the original design ensures:

• stable cooperation with the factory control motor,
• proper operation of the comfort closing function (if present in the vehicle),
• appropriate window guidance without jamming or skipping.

The OEM solution helps maintain the consistency of the entire window control system, which is important for both comfort and the durability of other door components.

Component condition and installation aspects

The offered mechanism is a used part, which allows for economical repair while maintaining the original Volkswagen design. Before installation, it is recommended to perform a standard verification of the system's operation and check the mounting points in the door to ensure proper alignment with the glass and other panel elements.

When replacing, it is worth paying attention to:

• correct positioning of the glass in the rails after installation,
• checking operation across the full range of movement,
• verifying cooperation with the vehicle's electrical system.

If you are planning a comprehensive repair or upgrade of the door area in your Volkswagen and need other elements from the same group, such as guides, window motors, or complete window mechanisms, check the available parts in the Volkswagen window regulators and motors category.

More about selecting and the quality of used OEM parts

When choosing used window system components, it is worth being guided by compliance with manufacturer markings and the technical condition of the subassembly. Practical tips on selecting components according to manufacturer markings, as well as a discussion on the cost-effectiveness of using used drive elements, can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths.

If you want to better understand the importance of original manufacturer solutions and the benefits of choosing used factory components, the guide Quality guarantee and OEM safety – why used original car parts are the best choice for your car? will also be helpful, where issues such as safety, durability, and cost-effectiveness of repairs using OEM parts are discussed.