Mercedes R172 Folding Top Roof Hydraulic Cylinder Right O/S A1728000472

Mercedes R172 Cabrio Convertible Top Actuator Right is an original component of the soft top opening system, designed for precise operation on the right side of the vehicle body. The used actuator ensures the preservation of the factory roof movement characteristics, which translates to stable mechanism operation, correct geometry, and safe folding of the top. This is a solution for users who want to restore the full functionality of their convertible top without compromising on a component that matches the factory specifications.

Specifications and technical data

• SKU: A1728000472
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1728000472
• Substitutable numbers: A1728000472, A 172 800 04 72
• Location on the vehicle: Right
• Category: Convertible Tops & Parts

Purpose and Function of the Convertible Top Actuator

The convertible top actuator in cabriolet models is responsible for the controlled movement of the soft top's supporting structure. This component works in conjunction with the vehicle's hydraulic or electro-hydraulic system, ensuring:

• smooth raising and lowering of the top structure,
• maintenance of the correct position of supporting elements during driving,
• proper synchronization with other actuators and system sensors.

In case of irregularities in the top's operation – such as jerking, stopping mid-cycle, or system errors – replacing the damaged actuator with a functional element from the same model line is often the most rational service solution.

Dedicated Placement – Right Side of the Vehicle

The presented actuator is designed for installation on the right side of the vehicle, which is crucial for the correct operation of the entire system. The design, mounting points, and operating range are optimized for a specific side of the body, therefore using the correct element minimizes the risk of:

• incorrect guidance of the top's arms,
• excessive stress on the structure,
• accelerated wear of hinges and mountings.

Selecting an actuator that matches its intended placement allows for the preservation of the factory roof movement kinematics, which is particularly important in premium vehicles such as Mercedes cabriolets.

Technical Category – Convertible Soft Tops and Parts

The offered element belongs to the category of Convertible Soft Tops and Parts, which is a group of components responsible for the operation, guidance, and sealing of folding tops. Actuator replacement within this category is often performed alongside other service activities, such as:

• checking the condition of other actuators and hinges,
• verifying the tightness of control system lines and connectors,
• inspecting the mounting points of the top structure and cooperating elements.

By using an original component from the same technical group, the user maintains the structural consistency of the entire convertible top system.

Product Characteristics and Application Benefits

A used convertible top actuator offers a sensible compromise between repair cost and maintaining factory operating parameters. The main advantages of using this element in a Mercedes cabriolet include:

• preservation of the original operating characteristics of the top mechanism,
• compatibility with the factory control system and body structure,
• the ability to restore full top functionality without altering the vehicle's design.

A properly selected actuator limits the risk of additional structural loads, which in the long term contributes to the durability of the entire convertible top system.

Professional Installation and Parts Selection

Due to the specific nature of convertible top systems, installation by a workshop experienced with cabriolet bodies is recommended. Proper installation includes, among other things:

• checking the correctness of mechanical connections and mounting points,
• verifying system tightness and bleeding (if applicable),
• calibrating the top's position according to the vehicle manufacturer's procedure.

This approach allows for the full utilization of the offered actuator's potential and reduces the risk of recurring faults in the top opening system.

If you are planning comprehensive service for the folding top mechanism in your cabriolet of this brand and wish to select other components cooperating with the top structure, check the available parts in the category Mercedes Convertible Soft Tops and Parts.

Vehicle owners who, alongside roof repair, plan to refresh their cabin may find a practical guide useful, describing how to improve interior ergonomics and appearance using aftermarket components – more information can be found in the article Car Interior Tuning with Global Parts.