Audi A6 C8 A7 Q8 Door Lock Latch Mechanism Rear Right O/S 4K0839016P

Audi A6 C8 A7 Q8 Door Lock Latch Mechanism Rear Right O/S is an original locking mechanism from the Locks and Latches category, designed for installation on the rear right side of the vehicle body. This component is responsible for precise locking, secure closing, and proper integration with the electrical system and door opening mechanism in modern Audi models.

Specifications and technical data

• SKU: 4K0839016P
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0839016P
• Substitutable numbers: 4K0839016P, 4K0 839 016 P
• Location on the vehicle: Rear, Right
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The lock mechanism is dedicated to installation in the rear right door, ensuring proper positioning relative to the pillar and body seals. It is responsible for:

• mechanical locking of the door leaf against the body,
• stable retention of the door in the closed position while driving,
• cooperation with the external and internal door handle,
• correct response to open and close signals from the central locking system.

Thanks to its factory fit for the Audi A6 C8, A7, and Q8 platform, the lock maintains the correct operating geometry, which reduces the risk of door rattling, play, or incomplete closing.

Construction and fitment for Audi

The original lock mechanism was designed by Audi for integration with factory body and electronic solutions. The design provides for:

• precise mounting points to the internal door structure,
• engineered latch guidance relative to the striker in the pillar,
• compatibility with the factory door wiring harness and central control,
• proper force transmission from the handles to the locking mechanism.

Such fitment reduces the need for modifications, and installation is carried out using factory mounting points and original connectors.

Condition, application, and benefits of replacement

The offered lock is used, which allows for an economical repair while maintaining original manufacturing quality. It is particularly useful in situations where:

• the door does not close properly or bounces back after closing,
• there are locking issues specifically in the rear right door,
• the mechanism has been damaged due to a collision or mechanical interference,
• errors related to lock operation appear in the comfort system.

Replacing it with an original mechanism from the same Audi model group allows for restoring proper door operation without compromising on fitment or latch performance.

Body system integration and safety

A functional rear door lock is important not only for comfort but also for passenger safety. A properly operating mechanism:

• ensures stable door retention during driving and maneuvers,
• reduces the risk of accidental opening in case of incomplete closing,
• supports the correct operation of the vehicle's comfort and security systems.

By using an original component from the Locks and Latches group, compatibility with the body structure and the manufacturer's factory specifications is maintained.

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

Additional technical support

When selecting used body components and safety-related systems, it is worth considering not only the price but also the technical condition and compatibility with the specific model. If you want to expand your knowledge about purchasing used components and avoid common mistakes when choosing drivetrain elements and associated sub-assemblies, check out the guide Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.