Audi A4 B8 Rear Door Lock Latch Mechanism Left N/S Handle Mount 8K0839015C

Audi A4 B8 Rear Door Lock Latch Mechanism Left N/S Handle Mount is an original locking mechanism designed for installation at the interior and exterior handle on the rear passenger side. This component from the Locks and Latches group ensures proper closing, opening, and locking of the door, restoring full functionality to the rear body section of your Audi.

Specifications and technical data

• SKU: 8K0839015C-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0839015C
• Substitutable numbers: 8K0839015C, 8K0 839 015 C, 8K0 839 015 F, 8K0839015F
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock mechanism

The presented mechanism is dedicated to the rear left side of the vehicle, making it perfectly compatible with the door structure of the Audi A4 B8 generation. It is responsible for the precise locking of the door panel, interaction with the handle, and the factory central locking system. A properly functioning lock in this location contributes to the safety of transported passengers, door sealing, and daily operational comfort.

Construction and integration with the rear door

The lock mechanism is designed as a component mounted directly within the door structure, in the area of the handle mount. The design provides for interaction with control rods and cables, as well as the central locking actuator, which enables smooth opening and closing from both the remote control and the cabin interior. Thanks to its factory origin from the Audi group, the lock maintains proper geometry and mounting points, which facilitates installation in place of a worn or damaged part.

Benefits of using the original rear left door lock

Choosing the original rear left door lock for the Audi A4 B8 primarily ensures a perfect fit for the specific body version and compatibility with the factory electrical installation. The used OEM component allows for maintaining consistent operation with other locks in the vehicle, which is essential for the correct performance of the central locking and comfort systems. This is a solution that helps restore stable locking and predictable handle operation without the need for costly aftermarket alternatives with uncertain parameters.

Condition, verification, and service application

The mechanism comes from dismantling and is offered as a used part, which represents a reasonable compromise between repair costs and maintaining the quality of original Audi equipment. This type of component works perfectly for repairs following a lock failure, issues with door closing, or when upgrading the rear body section if the existing lock is operating with noticeable resistance. Thanks to the preservation of the factory design, it is possible to service the vehicle in a manner similar to authorized service standards, while simultaneously reducing expenses. If you are planning a comprehensive repair or upgrade of the rear door area in your Audi and need other components from the same group, such as locking mechanisms, cylinders, or central locking actuators, check the available parts in the Audi Locks and Latches category. For a comparison of the approach to economical repair using dismantled parts, you can check out the Skoda service guide – practical tips regarding the advantages of used components can be found in the article Smart Skoda servicing – why second-hand parts are the best choice for your wallet.