Audi A4 B9 A5 F5 Door Lock Catch Actuator Motor Rear Left N/S 4G0839015F

The Central Locking Actuator for Rear Left Door Audi A4 B9 / A5 F5 / Q5 FY is an original part from the Locks and Latches group, designed for precise operation of the locking mechanism in the rear left part of the body. It ensures proper cooperation with the factory central locking system, guaranteeing consistent operation with the vehicle's electronics and stable door function in daily use.

Specifications and technical data

• SKU: 4G0839015F-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0839015F
• Substitutable numbers: 4G0839015F, 4G0 839 015 F
• Location on the vehicle: Rear, Left
• Category: Interior Locks & Lock Hardware

Vehicle Purpose and Function

The presented actuator is dedicated for installation in the rear left door, where it is responsible for controlling the latch and cooperating with the central locking system. Its task is to mechanically lock or unlock the door in response to a signal from the vehicle's electrical system, which translates to user convenience and the safety of passengers.

Thanks to its construction in line with factory Audi standards, this part maintains proper positioning relative to the door lock, ensuring smooth latching, correct response to remote control signals, and consistency with the vehicle's comfort systems.

Construction and Technical Compatibility

The central locking actuator has been designed as an OEM part, meaning it fits factory mounting points and has the correct geometry for cooperation with the door mechanism. The construction includes an integrated electric drive and a gearbox responsible for latch movement, which minimizes the risk of play and improper closing.

This solution is particularly beneficial in vehicles equipped with advanced comfort systems, where stable operation of the lock and latch is important for the correct functioning of features such as child lock, open door indication, or alarm integration.

Part Condition and Installation Aspects

The offered actuator is a used part from disassembly, allowing for an economical replacement of a damaged module while maintaining the original manufacturer's specifications. This type of part is particularly attractive when aiming to maintain consistency with factory equipment without the need to resort to replacements with uncertain parameters.

In terms of installation, the actuator is intended for installation in place of the original part, using existing mounting points and the electrical harness. This facilitates service work, shortens replacement time, and reduces the risk of needing to modify the door's wiring.

Benefits of Using an Original Actuator

• maintaining factory central locking functionality in the rear left door,
• consistent cooperation with Audi's body electronics and comfort systems,
• proper mechanical fit to the door structure,
• reduced risk of problems with closing, locking, and open door indication,
• economical repair thanks to the use of an original, used component.

Expanding Lock Zone Coverage in Audi

If you are planning a comprehensive repair or upgrade of the lock and latch zone in your Audi and need other parts from the same group, such as latch mechanisms, lock cylinders, or additional control modules, check the available parts in the Audi Locks and Latches category.

Additional Technical and Operational Information

When replacing the actuator, it is worth paying attention to the condition of the door mechanism, guides, and seals to ensure uniform operation of the entire system. A properly functioning actuator combined with a correctly adjusted lock reduces mechanical stress, which contributes to door durability and vehicle comfort.

If you are also interested in other vehicle areas related to modernization and system optimization, including issues concerning exhaust flow and its impact on engine performance, it is worth familiarizing yourself with the guide: Performance Exhaust System: Used Headers and Sport Catalytic Converters on the Road.