Mercedes W177 Door Lock Front Left N/S Latch Catch Actuator A2477230100

Mercedes W177 Door Lock Front Left N/S Latch Catch Actuator is an original component from the Window regulators and motors group, designed for precise integration with the factory installation in Mercedes models. This used door lock ensures the proper operation of the opening and locking mechanism, maintaining compatibility with the vehicle's electronics and factory mounting points. It is a practical solution for users who expect a proven component at a reasonable price.

Specifications and technical data

• SKU: A2477230100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2477230100
• Substitutable numbers: A2477230100, A 247 723 01 00
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and vehicle placement

The presented door lock is intended for installation on the left side of the vehicle body. It is responsible for the proper locking of the door, as well as interaction with the handle, linkages, and the central locking control system. Thanks to the factory design, the correct mounting points, mechanism geometry, and compliance with factory body tolerances are maintained.

Function and interaction with the door system

This component works in a set with the actuator and the window lifting mechanism, which is typical for the Window regulators and motors group. The door lock is responsible for, among other things:

• mechanical locking and unlocking of the door from the inside and outside,
• interaction with the central locking system and remote control,
• correct positioning of the door panel relative to the body,
• stable retention of the door in the closed position while driving.

Thanks to the preservation of the factory design, proper interaction with the electrical installation and other door components is possible without the need for modifications.

Benefits of using an original Mercedes door lock

Choosing an original door lock from a dismantled Mercedes W177 allows you to maintain the structural and functional consistency of the entire door module. The most important advantages include:

• Factory fit – compliance with the geometry of the door and body, which reduces the risk of leaks and improper closing.
• Electronic compatibility – correct interaction with control modules, sensors, and the central locking system.
• Stable mechanism operation – maintaining the appropriate locking force and smoothness of the handle operation.
• The possibility of an economical repair without sacrificing original build quality.

Condition and practical application

The offered door lock comes from a used vehicle, which allows for a beneficial combination of price and the preservation of the original design. This type of element is particularly useful for repairs after collisions, problems with door closing, or central locking failures on the left side. It is recommended to entrust the installation to a workshop experienced with the Mercedes brand to correctly set the door position and verify the interaction with the electrical system.

Selection support and additional information

When selecting a door lock for a specific body version and model year of a Mercedes, it is crucial to verify compatibility based on the manufacturer's markings and the vehicle's equipment configuration. In case of doubt, it is worth using selection procedures based on factory numbers or vehicle data to avoid problems with installation and central locking operation. You can read more about the safe and cost-effective use of aftermarket components, including verifying compatibility based on markings, in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses practical rules for selecting used parts.

If you are planning a comprehensive repair or upgrade of the door and window area in your Mercedes and need other elements from the same group, such as window lifting mechanisms, control motors, or window control modules, check out the available parts in the Mercedes window regulators and motors category.