Audi A4 B8 Door Lock Latch Mechanism Actuator Rear Right O/S 8K0839016C

Audi A4 B8 Door Lock Latch Mechanism Actuator Rear Right O/S is a component from the Locks and latches group, designed for the rear right side of the vehicle body. This factory-spec lock ensures the proper operation of the door opening and closing mechanism, stable locking, and correct integration with the vehicle's electrical system.

Specifications and technical data

• SKU: 8K0839016C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0839016C
• Substitutable numbers: 8K0839016C, 8K0 839 016 C
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function of the door lock

The presented lock is dedicated to the rear right door of the Audi A4 B8 generation. It is responsible for mechanical locking, unlocking, and interaction with the door handle and linkages, which results in secure door closing, no play, and correct operation of the central locking system.

Thanks to a design consistent with factory solutions, the lock maintains the correct mounting geometry, which facilitates installation in the original body points and allows for maintaining factory gaps and smooth door operation.

Construction and technical fitment

The component belongs to the Locks and latches group, meaning it has been designed to work with the standard Audi door opening and closing mechanism. The layout of levers, catches, and mounting points is adapted to the rear right side of the vehicle, so it does not require any modifications or adaptations.

The appropriate shaping of the housing and the arrangement of mounting holes allow for precise bolting of the lock to the door structure, while properly routed guides for linkages and any connectors ensure stable, repeatable operation of the mechanism in daily use.

Benefits of using an original lock

Using a lock dedicated to a specific Audi model reduces the risk of problems with door closing, improper locking, or excessive play. Proper fitment to the rear right side of the body translates into:

• correct positioning of the door relative to the body,
• stable locking when closing,
• consistent cooperation with the handle mechanism and linkages,
• maintaining acoustic comfort inside the vehicle.

This solution is particularly recommended for post-collision repairs, replacing a worn-out mechanism, or restoring full door functionality after years of operation.

Condition and service application

The offered lock is a used component, which makes it an attractive cost-effective alternative while maintaining a design consistent with Audi factory solutions. It works well both in routine repairs and in comprehensive renovation of the side body section, when it is necessary to replace several elements of the door mechanism.

Thanks to the preservation of the original geometry and the intended use for the rear right side of the vehicle, the installation proceeds in an orderly manner, without the need to modify the door or body structure.

Repair expansion – Audi Locks and latches group

If you are planning a comprehensive repair or upgrade of the door zone in your Audi and need other elements from the same group, such as locking mechanisms, cylinders, or catches, check out the available parts in the Audi Locks and latches category.

More about choosing used components

When choosing used body and equipment components, it is worth paying attention to their origin and compliance with factory solutions. If you are interested in a broader context of selecting used subassemblies and want to better understand when used parts can be a more favorable choice than cheap replacements, check out the article Original lamps or replacements? Check why used headlights are a guarantee of safety and perfect lighting.