Mercedes SLK R170 Roof Top Hydraulic Cylinder Left N/S Trunk Drive A1708000372

Mercedes SLK R170 Roof Top Hydraulic Cylinder Left N/S Trunk Drive is an original component of the soft top opening and closing system, designed for installation on the left side. Thanks to its factory design, it ensures proper cooperation with other mechanism components, which translates into smooth folding and unfolding of the roof and correct operation of the trunk lid. This is a practical solution for users who want to restore the full functionality of the roof system in their roadster.

Specifications and technical data

• SKU: A1708000372-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1708000372
• Substitutable numbers: A1708000372, A 170 800 03 72
• Location on the vehicle: Left
• Category: Convertible Tops & Parts

Purpose and function in the roof system

The presented cylinder is a component of the hydraulic system responsible for driving the trunk lid that works with the soft top in the Mercedes SLK R170 model. Mounted on the left side, it works in synchronization with other cylinders and the hydraulic pump, ensuring the correct sequence of movements during roof opening and closing. Choosing the correct installation side is crucial for maintaining the proper operating geometry of the entire mechanism.

As a part from the Convertible soft tops and parts group, this component is responsible for stable trunk lid movement, reducing mechanical stress, and maintaining the correct position of body elements during the folding cycle. Replacing a worn cylinder with a functional unit allows for the elimination of typical fault symptoms, such as the roof stopping halfway through the cycle, uneven closing, or the need for manual assistance with the lid.

Compatibility and vehicle fitment

The cylinder has been designed specifically for the roof system in the Mercedes SLK R170 generation, which means factory-perfect fitment for mounts, hydraulic lines, and the mechanism's operating range. Original Mercedes branding ensures compliance with the operating pressure parameters, piston stroke, and performance characteristics specified by the vehicle manufacturer. As a result, the element can be integrated into the existing system without the need for structural modifications.

The left-side positioning is important both from the point of view of installation and the safe operation of the entire system. Using the correct cylinder on the appropriate side minimizes the risk of hinge overload, uneven force distribution, and accelerated wear of other roof system components.

Performance characteristics and application benefits

As a hydraulic element, the cylinder is responsible for transferring pressure from the pump to the linear movement of the trunk lid, which enables automatic roof control. Using an original component allows you to maintain:

• the correct speed of roof opening and closing,
• stable lid movement without jerking or jamming,
• consistent operation with position sensors and the roof system controller,
• proper hydraulic system tightness.

Used condition means that the element comes from dismantling, which in practice allows you to combine reasonable costs with maintaining the manufacturer's original specifications. For many premium car users, this is an effective way to restore the roof mechanism's efficiency without having to invest in a new, expensive sub-assembly.

Professional application and service aspects

The cylinder is intended for installation in specialized workshops or by persons with experience in hydraulic systems for convertibles. During replacement, it is recommended to:

• check the tightness of hydraulic lines,
• verify the fluid level and condition in the system,
• verify the operation of other roof cylinders,
• perform a full test cycle of opening and closing.

This approach helps avoid secondary faults and ensures consistent operation of the entire roof system after installation. A component from the original Mercedes system also facilitates diagnostics, as its characteristics are known and predictable for services specializing in this brand.

Expanding the roof system and selecting other elements

If you are planning a comprehensive repair or upgrade of the roof area in your Mercedes and need other elements from the same group, such as cylinders, guides, or mounting elements, check the available parts in the Mercedes convertible soft tops and parts category.

For users considering wider use of used components in premium cars, a valuable addition to your knowledge will be an article describing current trends in the secondary market. More information about the benefits of using original used sub-assemblies in cars like Mercedes can be found in the material: Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.