Audi A4 B7 Window Lifter Rear Door Right O/S Regulator Mechanism 8E0839462C

The Audi A4 B7 Rear Right Window Regulator is an original part from the Window Regulators and Motors category, designed for the rear right window of an Audi. It ensures stable, smooth operation of the window lifting and lowering mechanism, providing comfortable use of the passenger window and proper sealing in daily operation.

Specifications and technical data

• SKU: 8E0839462C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0839462C
• Substitutable numbers: 8E0839462C, 8E0 839 462 C, KD
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Vehicle Application and Placement

The presented window regulator is designed for installation on the rear right side of the vehicle, in the passenger door. Its construction is tailored to the specific geometry of the Audi A4 B7 generation doors, which translates to proper window guidance along the tracks and correct interaction with the factory door hardware.

Thanks to precise fitting to the Audi body, the part works with original mounting points, the electrical harness, and the factory window control system, facilitating installation and reducing the risk of improper mechanism operation.

Technical and Functional Characteristics

The window regulator belongs to the group of components known as Window Regulators and Motors, responsible for controlling the position of side windows. The applied design ensures:

• stable window guidance throughout its full range of motion,
• even load distribution to the guides,
• compatibility with the factory window control system in the rear doors,
• operation under typical passenger car operating conditions.

The part is designed as part of the Audi window system, which helps maintain factory operating parameters – both in terms of window speed and its positioning within the seals.

Part Condition and Benefits of Choosing a Used Part

The window regulator is offered as a used part, allowing for an economical repair of the window system while maintaining the original manufacturer's specifications. Choosing a used OEM part for Audi is a solution that often combines:

• lower cost compared to a new aftermarket part,
• retention of factory design and fit,
• reduced risk of installation issues arising from dimensional differences.

For users planning more extensive repairs or upgrades to drivetrain and control systems, it may also be valuable to consult a guide on selecting used components – especially regarding OEM markings and verification procedures. Practical tips can be found in the article Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses the approach to purchasing key mechanical components.

Selection, Compatibility, and Installation Aspects

To ensure proper operation of the rear right window, it is crucial to match the window regulator to the specific body version and equipment of the Audi A4 B7. In practice, this means paying attention to:

• vehicle placement (rear, right side),
• compatibility with the factory window control system,
• the correct type of mountings for the door structure.

A correctly selected part allows for installation without altering the door structure, which reduces labor time and minimizes the risk of additional damage. If you have any doubts during selection, it is advisable to refer to the manufacturer's markings and catalog data to ensure full compatibility with your specific vehicle configuration.

Expanding the Audi Window System

If you are planning comprehensive maintenance of your Audi's window mechanisms and are also interested in other components responsible for window control – such as additional regulators, drives, or related modules – check out the available parts in the Audi Window Regulators and Motors category.