Mercedes SLK R172 Boot Trunk Lid Tailgate Gas Pressurized Spring A1729800464

The Mercedes SLK R172 Trunk Lid Actuator Gas Spring is an original part from the Trunk Lid and Rear group, designed for precise support and smooth opening of the trunk lid. A used OEM part ensures factory fit, stable mechanism operation, and predictable lid behavior in daily use.

Specifications and technical data

• SKU: A1729800464
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1729800464
• Substitutable numbers: A1729800464, A 172 980 04 64
• Category: Boot & Hatch Lids

Actuator Purpose and Function

The trunk lid actuator in the Mercedes SLK R172 is responsible for the controlled lifting and holding of the lid in a set position. Appropriately selected gas spring characteristics reduce stress on the hinges, improve lid handling comfort, and minimize the risk of uncontrolled lid dropping.

The component in this group operates under varying temperature conditions, making it crucial to use a part with factory-compliant parameters. Employing an original Mercedes solution preserves the correct support force and predictable lid movement dynamics.

Advantages of Using an Original Gas Spring

Choosing an actuator with this reference offers primarily:

• factory fit to the geometry of the trunk lid hinges and mountings,
• consistent operation with other elements of the lid lifting system,
• stable holding of the lid in the open position under typical load,
• reduction of vibrations and jerks during opening and closing.

Consequently, replacing a worn gas spring with an original equivalent restores comfortable trunk operation and improves the ergonomics of daily vehicle use.

Installation Characteristics

The trunk lid actuator for the Mercedes SLK R172 is structurally designed for installation at the factory mounting points on the body and lid. This allows for a near plug-and-play replacement, without the need for body modifications or interference with other components in the rear section of the vehicle.

When selecting a part, it is crucial to compare the markings with the currently installed spring and verify compatibility with the vehicle manufacturer's documentation. Using the correct component prevents excessive stress on the hinges and ensures even lid travel throughout its range of motion.

Condition and Practical Application

The offered actuator is a used part, enabling an economical repair of the lid lifting system while maintaining the original manufacturer's specifications. This solution is particularly beneficial for vehicles used daily, where a reasonable service cost is important while preserving correct functionality.

Gas spring replacement is recommended when the trunk lid drops, requires excessive force to lift, or operates unevenly. Using the correct component restores comfortable operation of the rear of the vehicle and improves user safety.

Related Parts and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the rear body section of your Mercedes and need other parts from the same group, such as additional actuators, hinges, or lid mountings, check the available parts in the Mercedes Trunk Lid and Rear category.

For drivers interested in a broader technical context of drivetrain systems and component selection in all-wheel-drive vehicles, an article describing the construction and service differences between AWD systems from various manufacturers may be useful – find more information in the material xDrive, 4Matic, quattro or 4Motion – AWD Comparison.