Audi A3 8P Door Lock Rear Left N/S Latch Catch Actuator 4F0839015

Audi A3 8P Door Lock Rear Left N/S Latch Catch Actuator is a component from the Locks and Latches category, designed for the rear left side of the vehicle body. It ensures the proper operation of the door opening and closing mechanism, stable locking, and compatibility with the vehicle's factory safety systems.

Specifications and technical data

• SKU: 4F0839015
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0839015
• Substitutable numbers: 4F0839015, 4F0 839 015
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the door lock

The presented lock is dedicated to the rear left side of the body in the Audi A3 8P model. It is responsible for the mechanical latching of the door, interaction with the handle, and transmitting the drive from the central locking actuator. A properly functioning lock minimizes door play, reduces unwanted vibrations, and supports acoustic sealing and passenger safety in the rear seats.

Construction and body compatibility

The lock has been designed for the geometry of the rear left door, taking into account the factory mounting points in the Audi A3 8P. The construction provides compatibility with the standard exterior and interior handles, linkages, and control wiring. As a result, the component can be integrated into the existing system without the need for bodywork modifications or interference with the door structure.

The arrangement of mounting holes and the shape of the housing are matched to the factory door panel, which facilitates precise alignment with the striker on the pillar and helps maintain the correct closing line. Such a fit reduces the risk of improper closing, rubbing, or excessive load on the hinges.

Benefits of using an original Audi lock

Using a lock dedicated to the Audi A3 8P for the rear left body area allows for consistency with the vehicle's factory design. The original solution ensures:

• stable door locking during daily use,
• compatibility with the existing central locking and electrical installation,
• proper door alignment relative to the seals and pillar,
• maintenance of factory acoustic comfort parameters.

For the user, this means predictable door behavior when closing, no need for component adjustment, and a reduction in potential issues with latching or locking the door.

Characteristics of the used component

The offered lock comes from the secondary market, which allows for an economical repair of the rear left body area while maintaining the original Audi construction. A used component is a good solution in situations where the existing lock has suffered from operational wear, mechanical damage, or has stopped working with the central locking system. Replacing it with a part from the same design group reduces installation time and facilitates the restoration of full door functionality.

Application in service and body repairs

The rear left door lock in the Audi A3 8P is an essential element for post-accident repairs, door panel replacement, or troubleshooting locking issues. Mechanics use it both for standard replacement of a worn lock and for the reconstruction of the entire rear left door area. Thanks to the fitment to the factory mounting system, it is possible to quickly restore full functionality without additional modifications.

If you are planning a comprehensive repair or upgrade of the door closing 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 those who are also thinking about refreshing the cabin, an interesting addition to service work could be interior tuning using secondary market components – you can find more inspiration in the article Car interior tuning with Global Parts.