Audi A4 B7 Cabrio Rear Window Lifter Regulator Mechanism Right O/S 8H0839398

Audi A4 B7 Cabrio Rear Window Lifter Regulator Mechanism Right O/S is an original component from the Window regulators and motors group, designed for the rear right window in the convertible body style. It ensures stable window guidance, proper closing, and smooth operation in daily use. This is a solution for users who expect factory-fit quality and a proven design for their Audi.

Specifications and technical data

• SKU: 8H0839398-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0839398
• Substitutable numbers: 8H0839398, 8H0 839 398, 8H0959302A, 8H0 959 302 A
• Location on the vehicle: Rear, Right
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented mechanism is dedicated to the rear right window in the Audi A4 B7 generation convertible version. It is responsible for the precise raising and lowering of the window, maintaining its correct position, and working in conjunction with the window control system. Thanks to the factory design, the proper geometry of the guides is maintained, which translates into smooth operation and reduced stress on the glass.

The component from the Window regulators and motors category is crucial for door usage comfort and safety – a properly functioning mechanism minimizes the risk of jamming, window misalignment, and unwanted play in the system.

Construction and technical features

The Audi A4 B7 Cabrio rear right window lifter mechanism is designed as a complete unit mounted in the side section of the body. The construction is designed to work with the factory window mount and the standard electric control system, which facilitates integration with the vehicle's existing installation.

• Factory mounting points adapted to the convertible body.
• Guide system ensuring stable window movement throughout the entire range.
• Adapted for operation in the rear right part of the vehicle, taking into account the specifics of the folding roof construction.

By maintaining the original geometry, the mechanism works with the seals and window frame in a way that reduces wind noise and improves sealing while driving.

Condition, fitment, and installation

The offered item is in Used condition, meaning it has been removed from a vehicle but retains functionality suitable for further use. For workshops and individual users, this is a cost-effective solution while maintaining the original quality characteristic of the Audi brand.

Fitment for a specific vehicle should be verified based on the OEM part number or interchangeable numbers – this helps avoid installation issues and ensures full compatibility with the body and electrical system. The mechanism is intended for installation in the rear right part of the vehicle, which facilitates identification of the correct side during service work.

Benefits of using an original mechanism

Using an original window lifter mechanism in an Audi A4 B7 Cabrio brings a number of practical benefits:

• Factory fitment – no need to modify mounts or guides.
• Stable window operation throughout the entire range of motion, which improves user comfort.
• Better compatibility with existing window controls and electrical safety features.
• An economical solution compared to new aftermarket replacements while maintaining the original design.

For users who value the technical consistency of the entire window system, choosing an original mechanism is a reasonable compromise between cost and quality.

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

Additional technical support and knowledge

When selecting consumables and components from dismantling, it is worth using reliable sources of information. In the context of assessing the cost-effectiveness of using used parts, selection procedures based on OEM numbers, and real cost differences, the following expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. Although it mainly concerns powertrains, the technical and economic analysis principles presented there can also be applied when choosing other components, such as window lifter mechanisms.