Mercedes-Benz ML W164 Gas Pressure Strut Tailgate Boot Trunk Left A1647400145

The Mercedes W164 Rear Left Tailgate Actuator is an original part from the Tailgate and Rear group, designed for the left side of the vehicle. It provides stable support and controlled movement of the tailgate, contributing to everyday convenience and safe use of the luggage compartment. This solution is dedicated to drivers who expect a proven design and proper operation of the tailgate lifting mechanism.

Specifications and technical data

• SKU: A1647400145
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647400145
• Substitutable numbers: A1647400145, A 164 740 01 45, ASZ
• Location on the vehicle: Left
• Category: Boot & Hatch Lids

Actuator Purpose and Function

The actuator operates within the rear tailgate lifting and supporting system, responsible for smooth opening and controlled closing. This component works in conjunction with the hinges and other tailgate components, stabilizing its position in extreme positions. Thanks to precisely selected parameters, the actuator limits the loads acting on the hinges and body, which contributes to the longer lifespan of the entire assembly.

Its placement on the left side of the vehicle allows for the correct geometry of the tailgate's operation, as well as even distribution of forces between the pair of actuators. Proper selection of the component for a specific side is crucial for maintaining the correct operation of the mechanism and avoiding improper closing or sagging of the tailgate.

Construction and Fit for Mercedes W164

The Rear Left Tailgate Actuator has been designed with the specific body structure of the Mercedes W164 in mind, which translates to appropriate mounting points and correct working stroke. The appropriate working length and force characteristics ensure compatibility with factory brackets and maintain the tailgate's movement trajectory as intended by the manufacturer.

Original origin from the Mercedes brand means adherence to the vehicle manufacturer's quality standards, including compliance with factory assembly tolerances. As a result, the component works well with the existing body installation, without the need for modifications to the mounts or interference with the tailgate's structure.

Performance Characteristics and Benefits

A properly selected actuator contributes to the comfort of everyday trunk use, especially with frequent opening and closing of the tailgate. The main benefits of using this component include:

• stable support of the tailgate in the open position, reducing the risk of it sagging on its own,
• controlled, predictable movement during opening and closing,
• relieving the load on the tailgate hinges and mounts, which contributes to their longer service life,
• maintaining the factory operating characteristics of the lifting system in the Mercedes W164.

This part from the Tailgate and Rear category is significant for the ergonomics of using the cargo space, especially under conditions of intensive vehicle use.

Condition, Verification, and Application

The actuator is offered as a used part, allowing for an economical replacement while maintaining the original construction. Before installation, it is recommended to verify compatibility with the specific body version and compare it with the currently installed component to confirm its correct placement on the left side of the vehicle. Proper fit ensures correct cooperation with the right-side actuator and even load distribution on the tailgate.

For a consistent repair outcome, it is advisable to simultaneously check the condition of the other actuator and the tailgate hinges, which will help reduce uneven operation and accelerated wear of individual components. This approach is particularly important in vehicles operated in varying weather conditions.

Expanding the Mercedes Tailgate System

If you are planning a comprehensive repair or upgrade of the rear tailgate area in your Mercedes and need other parts from the same group, such as additional actuators, hinges, or tailgate locks, check the available parts in the Mercedes Tailgate and Rear category.

To better plan service work on the rear of the vehicle and to make informed decisions when selecting used components, it is worth familiarizing yourself with the guide describing the structural and operational differences between various suspension solutions and their impact on body operation: Stock vs. Sport Suspension – Construction Differences and Is It Worth Buying Used Suspension Parts?.