Mercedes-Benz C-Class W204 Boot Trunk Lid Tailgate Tension Spring A2047570129

The Mercedes W204 Trunk Lid Spring is an original part from the Trunk Lids & Tailgates category, designed for precise support and assisted opening of the rear lid in Mercedes C-Class W204 models. A used OEM part ensures factory fit, predictable mechanism operation, and stable performance of the trunk lid lifting system.

Specifications and technical data

• SKU: A2047570129
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047570129
• Substitutable numbers: A2047570129, A 204 757 01 29, EM
• Category: Boot & Hatch Lids

Application and Function of the Mercedes W204 Trunk Lid Spring

The Mercedes W204 Trunk Lid Spring is responsible for the controlled lifting and holding of the rear lid in a safe working position. A properly selected component:

• stabilizes the lid's movement during opening and closing,
• reduces the load on hinges and other mounting elements,
• limits the risk of the lid falling unexpectedly when actuators or other components are worn,
• ensures repeatable, predictable performance characteristics of the entire rear lid mechanism.

Replacing a worn spring with an original part from the same product line allows for the restoration of the system's correct operation without the need for body modifications or interference with the lid's structure.

Construction, Fit, and Installation

The spring is designed as part of the lifting system in Mercedes C-Class W204 vehicles, maintaining factory mounting points. Thanks to this:

• it fits original brackets and mounting sockets in the lid and body,
• it does not require modifications or adaptations of adjacent elements,
• it maintains the correct working geometry of the trunk lid,
• it is compatible with other components from the Trunk Lids & Tailgates group for this model.

During installation, it is recommended to follow the disassembly and installation sequence according to Mercedes service documentation to avoid stress on the hinges and improper lid alignment.

Benefits of Using an Original Trunk Lid Spring

Using an original spring in a Mercedes W204 translates into a number of practical operational benefits:

• Factory Fit – maintains the original lid operating characteristics, without the effect of opening being too light or too heavy.
• Consistency with Body Structure – the spring works with factory hinges, actuators, and the lock, without excessively loading any of the components.
• User Safety – reduces the risk of sudden lid closure, which is particularly important for frequent trunk use.
• Stable Long-Term Performance – the original spring characteristics ensure predictable lid behavior in daily operation.

Part Condition and Service Application

The offered spring is a used part, allowing for economical repair while maintaining the original manufacturer's specifications. This solution is particularly beneficial for:

• post-accident repairs of the rear body section,
• restoration of the lid lifting system after many years of use,
• servicing of fleet vehicles where repeatability and compliance with factory design are crucial.

For optimal results, it is recommended to inspect the entire trunk lid system – hinges, actuators, lock, and adjustment elements – so that the newly installed spring works correctly with the other components.

Related Products and Technical Knowledge

If you are looking for other elements from the Trunk Lids & Tailgates category dedicated to this brand, check out the Mercedes Trunk Lids & Tailgates available in our store to select a complete solution for your vehicle.

For users interested in deepening their knowledge about selecting used parts, installation, and verifying compatibility by VIN, our technical guide may be helpful: BMW B58 Code – Pre-Purchase Checklist for Turbocharger and Intercooler for BMW 3 Series (G20). Although it concerns a different brand, the procedures for checking compatibility and practical checklists contained therein are also useful when working with other body components.