Mercedes ML W164 Door Lock Latch Mechanism Actuator Rear Left N/S A1647302935

Mercedes ML W164 Door Lock Latch Mechanism Actuator Rear Left is a factory-original component from the Locks and Latches group, designed for the rear left body section. This used mechanism ensures proper cooperation with the factory locking system, central locking, and door handle, maintaining the design specified by the manufacturer. It is a practical solution for users who want to restore proper door operation without interfering with the vehicle's original architecture.

Specifications and technical data

• SKU: A1647302935-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647302935
• Substitutable numbers: A1647302935, A 164 730 29 35
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the door lock mechanism

The presented door lock mechanism is designed for installation in the rear left part of the body, where it is responsible for mechanical locking and unlocking of the door. The component works with factory rods, handles, and control wiring, ensuring that after correct installation, it restores standard door operation from both the inside and outside. The lock design was developed specifically for Mercedes vehicles, which translates into proper fitment with the door panel and other components.

Benefits of using an original door lock

Using an original mechanism in the rear left body zone allows for maintaining the factory operating parameters of the locking system. The used door lock:

• maintains compatibility with the factory door geometry and latch position,
• reduces the risk of issues with closing and locking the door panel,
• facilitates installation thanks to the mounting points provided by the manufacturer,
• ensures consistency with the existing central locking control system. Thanks to this solution, you can systematically restore proper door operation without the need for adapting aftermarket parts or modifying the installation.

Installation and operational characteristics

The door lock mechanism intended for the rear left side of the vehicle has been constructed to work with the factory system of guides, rods, and catches. Vehicle placement: rear – left allows for clear identification of the mounting position and avoids errors when selecting the part. Proper side selection is crucial for the correct operation of the handle, latch, and any electrically controlled functions. The used door lock is a solution particularly useful for post-accident repairs, mechanical damage, or locking issues, where it is necessary to replace the entire mechanism rather than just individual sub-components. Maintaining the original design promotes stable operation over a long period of use.

Application in service and body repairs

The rear left door lock mechanism can be used both in professional body and mechanical workshops, as well as during DIY repairs. Due to its factory origin, it constitutes a coherent element of the door safety system, influencing proper door closure and maintaining the tightness and stability of the body in this area. Replacing a worn or damaged lock with an original component helps reduce issues with improper closing, looseness, or unreliable locking. If you are planning a comprehensive repair or upgrade of the door locking zone in your Mercedes and need other elements from the same group, such as locking mechanisms, cylinders, or additional locking components, check the available parts in the Mercedes Locks and Latches category. To broaden your knowledge about selecting factory components, their impact on the durability of the drivetrain and suspension, and the principles of using used OEM parts, it is worth reading the article Repairing the Quattro drive and suspension in Audi models – why used factory parts matter, which discusses the practical aspects of servicing using original sub-components.