Audi Q3 8U Rear Door Lock Mechanism Actuator Lock Catch Right O/S 4G0839016

Audi Q3 8U Rear Door Lock Mechanism Actuator Lock Catch Right O/S is an original component from the Locks and Latches group, designed for the rear right side of the vehicle body. It is a factory-made Audi door lock that ensures the proper operation of the locking mechanism, compatibility with the vehicle's electrical system, and stable door closing during daily use.

Specifications and technical data

• SKU: 4G0839016
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0839016
• Substitutable numbers: 4G0839016, 4G0 839 016
• 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 side of the vehicle, which guarantees a proper fit to the door structure and guides. The component is responsible for the mechanical locking of the door leaf, interaction with the internal and external handles, and the correct transmission of signals to the central locking system and comfort electronics, if the vehicle is equipped with them.

A properly selected door lock minimizes the risk of play, incomplete closing, and incorrect door positioning relative to the body, which translates into acoustic comfort, safety, and the durability of the seals.

Construction and fit for Audi Q3 8U

As a part designed for Audi, the lock has been engineered for specific mounting points, door geometry, and the operating characteristics of the mechanism in the Q3 8U model. This means:

• factory mounting points matched to the structure of the rear right door,
• compatibility with standard rods and handles,
• designed interaction with the vehicle's electrical system (if position sensors or central locking control are present).

Thanks to this, the installation process is similar to the factory standard, without the need for bodywork modifications or interference with the door structure.

Condition, origin, and benefits of choosing a used part

The offered lock is a used part, sourced from vehicle dismantling. Such components are frequently chosen by those looking for factory solutions on a reasonable budget while maintaining the manufacturer's original specifications. In practice, this means:

• retaining the factory operating characteristics of the mechanism,
• no issues with fitting to the door and bodywork,
• the possibility of an economical repair of the locking system without giving up Audi parts.

Compared to aftermarket replacements, the original door lock works better with the vehicle's electronics and safety systems, which is important for long-term operation.

Application in repairs and retrofits

The rear right door lock will prove useful both for standard repairs after a mechanism failure and for more extensive service work, such as replacing entire doors or upgrading equipment. For retrofitting projects or replacing components with versions from higher configurations, it is worth considering the use of original parts from dismantling – you can find more on this topic in the article on sensible retrofitting and upgrading of VAG and BMW group cars using parts from dismantling.

Why choose an original Audi lock

By choosing Audi Q3 8U Rear Door Lock Mechanism Actuator Lock Catch Right O/S, you gain a component designed specifically for this model, which translates into stable mechanism operation, correct locking, and predictable behavior of the central locking system. This solution is particularly recommended for repairs where maintaining the vehicle's factory parameters and consistency with other components of the locking system is essential.