Mercedes M ML W164 1 Door Lock Front Right O/S Mechanism Actuator A1647201535

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes M ML W164 1 Door Lock Front Right O/S Mechanism Actuator is an original locking mechanism with a built-in actuator, designed for installation on the passenger side. This component belongs to the Locks and latches group and ensures the proper, stable operation of the central locking system and secure door closing in your Mercedes.

Specifications and technical data

• SKU: rhd-A1647201535-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647201535
• Substitutable numbers: A1647201535, A 164 720 15 35, A1697202635, A 169 720 26 35, EM
• Location on the vehicle: Front, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock is dedicated to the front right door of the Mercedes M-Class W164 generation. Its position in the front-right zone means that the mechanism works with the factory central locking system and the electrical installation responsible for controlling the locking and unlocking of the door.

The mechanism combines mechanical and electrical parts, making it responsible for both the physical locking of the latch and the response to signals from the remote control, key cylinder, or internal buttons. A properly functioning door lock significantly increases the comfort of using the car and the safety of the passengers.

Construction and technical characteristics

The front right door lock mechanism in the Mercedes W164 is an assembly of cooperating components: gears, levers, springs, and an electric actuator. The design is optimized for:

• precise locking and unlocking of the door during every operation cycle,
• proper cooperation with the external and internal door handle,
• integration with the factory central locking and vehicle security system,
• stable operation under typical operating conditions (temperature changes, humidity, vibrations).

The original origin from the Mercedes group helps maintain the correct mounting geometry, appropriate cable travel, and compliance with the factory electrical parameters of the actuator.

Condition, origin, and benefits of use

The offered door lock is a used part, sourced from a dismantled Mercedes vehicle. This type of part represents a reasonable compromise between repair costs and maintaining high quality and full compatibility with the factory installation. Unlike low-quality replacements, the original mechanism ensures proper fitment with the door panel, guides, and handle cables.

Using the original front right door lock allows you to:

• restore the correct operation of the central locking on the passenger side,
• minimize the risk of problems with closing or locking the door,
• maintain compatibility with factory comfort electronics settings,
• reduce installation time thanks to perfectly matched mounting points.

Installation and maintenance tips

Before installation, it is recommended to verify the compatibility of the part with the specific vehicle equipment version and compare the shape of the housing and mounts with the currently installed lock. Installation requires removing the door upholstery, disconnecting the handle cables, and electrical connectors, so it is best to entrust the work to an experienced mechanic or automotive electrician.

After installation, it is worth checking:

• the smoothness of the internal and external handle operation,
• the lock's response to signals from the remote control and cabin buttons,
• proper locking at driving speed (if the function is active),
• the absence of unwanted noises when closing and opening the door.

Expanding the security system in your Mercedes

If you are planning a comprehensive repair or upgrade of the door and lock area in your Mercedes and need other elements from the same group, such as locking mechanisms, actuators, or lock cylinders, check out the available parts in the Mercedes Locks and latches category.

For drivers interested in the wider use of parts from dismantling – for example, for modifications or budget tuning of other brands – practical tips on selecting and installing used components may be useful, which you can find in the article Emotions and design – visual and mechanical tuning of a Seat using parts from dismantling.