Door Lock Audi A3 8P A4 B7 Front Left N/S Latch Catch Actuator 8E2837015AA

Left Front Door Lock for Audi A3 8P / A4 B7 is an original part from the Locks and Latches category, designed for precise operation of the door locking and unlocking mechanism. This used, fully functional actuator with a latch mechanism ensures correct compatibility with the factory electrical system and Audi's central locking system.

Specifications and technical data

• SKU: rhd-8E2837015AA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E2837015AA
• Substitutable numbers: 8E2837015AA, 8E2 837 015 AA
• Location on the vehicle: Front, Left
• Category: Exterior Locks & Lock Hardware

Vehicle Application and Placement

The presented lock is dedicated for installation on the front left door, on the driver's side in right-hand drive vehicles. Its placement within the door structure allows for direct interaction with the exterior and interior door handles, mechanical rods, and the electrical system responsible for controlling the central locking and locking mechanism.

The component has been specifically designed for Audi A3 8P and Audi A4 B7 models, ensuring proper fitment with the door panel, mounting holes, and wiring harness. This allows the lock to be installed without structural modifications, maintaining the factory operating geometry of the mechanism.

Construction and Technical Function

The mechanism combines a mechanical part responsible for latching the door and an electrical part serving as the central locking actuator within a single housing. In practice, this means:

• control of door locking and unlocking via remote or door lock,
• compatibility with the vehicle's comfort system (open/closed signaling),
• stable holding of the door in the closed position while driving.

The original Audi construction ensures appropriate body rigidity, proper rod guidance, and correct operation of microswitches responsible for door status information. This ensures that the comfort system, interior lighting, and dashboard indicators function as intended by the manufacturer.

Benefits of Using an Original Audi Lock

Using the factory left front door lock in an Audi A3 8P / A4 B7 ensures full compatibility with the vehicle's existing installation. Key benefits include:

• precise mounting fit – holes, clips, and connectors designed specifically for the Audi door structure,
• correct electronic compatibility – proper signals for the comfort module and central locking system,
• stable operation of the locking mechanism, reducing the risk of doors not closing properly or opening spontaneously,
• restoration of factory functionality after the failure of the previous lock.

A used original part often represents a cost-effective alternative to aftermarket replacements, offering the preservation of factory operating parameters at a reasonable repair cost.

Condition and Service Application

The offered lock is a salvaged part and is classified as a used Audi component. Before reinstallation, standard service procedures are recommended: checking the wiring harness, connectors, proper adjustment of rods, and verifying operation in manual and remote modes. A correctly installed lock restores full functionality to the driver's door, eliminating common wear-related issues such as locking problems, no response to the central locking, or incorrect door open indications.

Related Parts and Additional Information

If you are upgrading your Audi's locking system and also need other parts from this group, such as actuators, latches, or mechanisms that work with the central locking system, check the available parts in the Audi Locks and Latches category.

For more extensive bodywork and replacement of salvaged parts, it is worth familiarizing yourself with practical tips on selecting and assessing the condition of used body components – more information can be found in the article on replacing body parts with used salvaged parts.